2008 Silverado Vibration At Idle

P0507 CHEVROLET Meaning The Idle Air Control (IAC) valve is a Powertrain Control Module controlled stepper motor located on the throttle body. Random — The vibration/noise comes and goes with no obvious connection to engine rpm, vehicle speed or driving conditions. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know. 3 Silverado Spark Plug. I can feel in coming through the brake peddle pretty good , but it can also be felt in the cab. When I am driving anywhere over 40mph and I completely let off the gas pedalI get this really loud rumbling noise and it shakes the jeep pretty good. No RPM change is visible on the tachometer when it happens it just feels like the car shakes occasionally - every few seconds - at idle. I have the 5. Lockup torque converters were added to many newer-model vehicles to help with fuel economy. It is very similar to the "vibration on deceleration" that I posted last week, I agree, Nissan has issues that it is not being forthright about admitting and I am going to pursue both at my next scheduled service in a few weeks. I recently purchased a new 2011 xc90 two weeks ago. It idled beautifully when I bought it, but after some upkeep, when I got it back, it had a rougher idle that you could feel in the steering wheel, and on top of the dash. I can only notice it when its in gear and i am at a stop. The motor dies while moving at idle speeds mostly while making a turn. It seemed to be worst when I was sitting at a stoplight, especially if the car was cold. Again, start the engine and compare how it is running at a stop to how it normally runs. 2008 Lucerne CXL - I was being annoyed by an audible vibration (heard it, but did not feel it) while stopped, foot on the brake, car in "drive". Maybe a few minutes difference. Purchased my 1st truck GMC seirra 2008 5. It had a bore, cylinder width, of four inches and a stroke, piston travel in the cylinder, of 3. I recently replaced the fuel filter, spark plugs, plug wires, diz cap, rotor, O2 sensor, HEI module, most vaccuum lines, and i still cant get this thing idling smooth when hot. Hi guys, so about 2 weeks I overheated my car after my serpentine belt came off and went in the ditch. This rotor unevenness can make your brake pads grab unevenly or, without warning, making the brake pedal and steering wheel shake. 4 is a little rough at idle. Showcasing 34l iac idle in stock now! Air Intake and Fuel Delivery. GM says fewer than 500 vehicles are expected to have the condition. Transmission Noise Problems of Chevrolet Silverado Chevrolet Silverado owners have reported 18 problems related to transmission noise (under the power train category). The vibration and shaking you feel from this problem will often happen when you brake at highway speeds. DEFINITION: Engine runs unevenly at idle. If you remember some time ago after I tore down the front end for powder coat and zombies I got this terrible vibration. See 2008 Chevrolet Silverado HD technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area. 6L Turbo-Diesel engine. When I stop at traffic lights, my voltage begins to dip. Order your Chevy GMC Pontiac Cadillac Idle Air Control Valve - 1AISC00020 today at 1AAuto. After a couple weeks I noticed that at idle the engine would stumble and my rpms would drop slightly. Excursion - King of SUVs - '03 7. com and affiliated sites. A bearded man in his mid thirties, medium height and weight slid out of the driver’s seat with what seemed great reluctance. 3L has low idle If this is there is a lot of vibration/rattling coming from the engine. I dont know whats going on. 4 is a little rough at idle. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know. Showcasing 1130940048 idle in stock now! Air Intake and Fuel Delivery. Purchased my 1st truck GMC seirra 2008 5. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner's Manual. Exhaust System Catback Fits Chevrolet Corvette C5 5. 95% of the car is stock, the battery was replaced, and the exhaust is way too shiny to be stock. See All Idle Control Valve for Chevy Silverado_1500 If you're looking to upgrade or repair your Chevy Silverado 1500 with a Idle Control Valve Auto Parts Warehouse is here for you. Free shipping on orders over $50 always makes purchasing a little easier. I'm getting a vibration at idle, but only once at normal temps (first start-up with slightly higher rpm is fine) Driving is fine, with no noticeable vibration. After cleaning carbon from the throttle body of my 2008 Chevy Silverado it seems to idle up and down, but it stays idling high after i give it a little gas then come to a stop. April 22, 2019, 12:12pm #1. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. I do however have a significant clunk when shifting. It only happened for s second and then disappeared. See the 2008 Chevrolet Silverado 1500 Crew Cab price range, expert review, consumer reviews, safety ratings, and listings near you. The idle will relearn if you put the vehicle in drive and allow the idle to come down with all accessories off for about two to three minutes. An automotive engine produces vibration when it operates. Sometimes it has a really rough idle. See All Idle Control Valve for Chevy Silverado_1500 If you're looking to upgrade or repair your Chevy Silverado 1500 with a Idle Control Valve Auto Parts Warehouse is here for you. Information Bulletin - #16-NA-383 - Information on Rough Idle, Crank No Start, Extended Crank or Misfire Due to Excessive Carbon on Top of the Valves or Sticking Valves, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set - (May 21, 2019) - For 2008 Chevrolet Silverado - 4WD. Steering wheel hard to turn at idle - powers steering pump? I have noticed recently that when I am about to pull out of a parking space (low RPM), it feels like I have no power steering. Includes MPG, engine type, trim levels, and more. Condition/Concern: There may be a either a boom noise or vibration and in some cases both a noise & vibration detected in a very few 2008 & 2009 G8's. When idling, there is a slight vibration coming from the engine bay. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. ? I thought it was becasue we had a 110 degree heat index for the last 2 days and the car was compalining about the heat!. Read more to learn if the Chevy Silverado is right for you. Easy to use parts catalog. They can produce a vibration at idle an uneven or surging idle while coasting in drive at speeds up to 5MPH. Truck Trend Garage: 2012 Chevrolet Silverado 1500 Rough Idle Keep in mind that you will typically get more of a vibration felt through the chassis with the A/C compressor engaged. So I was getting a vibration at idle when in gear sometimes, usually when the engine was cold. Find 634 used 2004 Chevrolet Silverado 1500 as low as $2,250 on Carsforsale. Idle problems may originate in a worn out component, a. Chevrolet Silverado 1500 Idle Control Valve Replacement costs between $125 and $286 on average. Anyways, at idle there is a vibration from the motor, its not severe but its very noticeable. 2008 CHEVROLET SILVERADO 1500 Recall vibration felt in steering wheel, rumble noise from underbody during downhill descents. The condition is intermittent, but can be relatively easy to duplicate at idle, with the engine at operating temperature, in gear, and with the A/C on, although the A/C does not need to be on. If severe, the engine or vehicle may shake. Shop millions of cars from over 21,000 dealers and find the perfect car. The last time the vehicle was in to the dealer, Ed Rinke, the service manager looked into the problem and saw the issue that I am having first hand. There are several common causes of engine vibration in a car, and they all result in shaking and noises that can be quite alarming and sometimes scary. Power/Fuel. They can produce a vibration at idle an uneven or surging idle while coasting in drive at speeds up to 5MPH. 2 all the time and the short term is anywhere for 10 to 19. Condition/Concern: There may be a either a boom noise or vibration and in some cases both a noise & vibration detected in a very few 2008 & 2009 G8's. Find Chevrolet Silverado 1500 recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. Now the vibration is minor up to 35 mph and gets worse up to 48 mph then settles down. When im in idle I see the rpm going to up and down like it goes to 500 rpm and then 550 rpm I see the oil pressure gauge moving also when the rpm goes up and down. A six-way power seat adjuster is now available on 1LT models, a high idle switch is a new option, and XM satellite radio is standard across all trims. They shimmed the engine on the motor mounts and that took away alot of the shaking but still slight shake, I think most of it may be because of the low 500 RPMs they set the idle to, because if you go to 1000 RPM you don't feel the shake like you do at 500 rpm. The Chevrolet Silverado is a full-size pickup truck. He said when I bring it back for the climate control issue, he will also mention it. What causes highway speed vibration? If this is your first visit, be sure to check out the FAQ by clicking the link above. 07 duramax vibration at idle. So I was getting a vibration at idle when in gear sometimes, usually when the engine was cold. In drive or reverse at idle i have enough vibration to shake my dashboard and the steering wheel. See the 2008 CR-V PDI Do the Idle-Learn Procedure To ensure a steady engine idle, do the idle-learn procedure after installing the No. I changed the Carrier Bearing, all three ujoints and rotated tires. Also possibly affected are 2007-14 vehicles repaired with defective parts. I just bought a used 2008 Honda Civic DX-G. My 2008 Silverado has been determined by the local dealership to suffer from frame beaming. It's been sitting for about 8 months but has been cranked occasionally. See 2008 Chevrolet Silverado HD technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area. If necessary, take the adviser on a test drive so they can verify the condition. But hardly anyone references the butterfly on the TBI unit not being adjusted right. All chassis parts se. 8litre, 2wd 150000 miles Braking vibration Brake pads Vibration Noise Brake pedal I have this problem when I apply my brakes, just as I'm about to stop my brake pedal has a slight vibration and creaking sound that is driving me crazy. 3 with 77k on it. 263 likes · 1 talking about this. At times you can even see the hood vibrate. When the procedure is followed the engine idle speed will slowly increased to the calibrated high idle speed. When the idle RPM's picked up a little, like if I put it in "neutral", or began to accelerate from the stop, the vibration stopped. 0L or Some customers may experience an idle vibration. And I notice the rpm gauge goes from 500 to 650 sometimes, but the rpms dont change while it shakes. I recently bought a 2008 Silverado 5. 3 v8 - At about 1800 to 2100 rpm, a high pitched chirp sound is heard. DEFINITION: Engine runs unevenly at idle. Seems to be pretty normal amongst alot of F150's. Vibration at idle - Jeep Fix Vibration at idle. Heard mostly on passenger side of vehicle when all windows open. If you own a 2007-09 Jeep Compass or Jeep Patriot and you have a vibration at idle, start with this fix before replacing any parts. All chassis parts se. Never stumbles or stalls, but you can deffinately feel a vibration when at a stoplight. Chevrolet Silverado 1500 Engine Problems. The Chevrolet Silverado, and its mechanically identical cousin the GMC Sierra, are a series of full-size and heavy-duty pickup trucks manufactured by General Motors and introduced in 1998 as the successor to the long-running Chevrolet C/K line. This engine produced 300 horsepower at 4,400 rpm and 360 foot-pounds of torque at 4,000 rpm. Find 105 used 2008 Chevrolet Silverado 3500HD as low as $9,500 on Carsforsale. Rough Idle/Vibration while driving 6 Answers. The CEL has been on duri. Any ideas? We've found that if we start the truck and drive right away (no warmup idle time) at a throttle. Get the best deals on Exterior Mirrors for Chevrolet Silverado when you shop the largest online selection at eBay. My 2007 XE four cylinder has a very rough idle, felt mostly through the steering wheel. I changed the Carrier Bearing, all three ujoints and rotated tires. two ways to check your balancer,first put a timing light on it,see were your mark is,also bring the rpms up to the vibration and watch the balancer with the light,second bring engine up to tdc pull the cap and check the rotor should be pointing to number one wire,also remove drive belts and see if it goes away,hope this helps. Dealer is telling me its the exhaust and I know better. I checkd the engine mounts. If left unattended, other problems may also develop. Vibration can be felt in the seat and seen in the center console. 5 Eco boost 412 Motorsports it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know. Lockup torque converters were added to many newer-model vehicles to help with fuel economy. I have a 2008 Honda Civic EX with a vibration that started around 50,000 miles. Anyone know of any common problems that may be the cause?. I do however have a significant clunk when shifting. Get the best deals on Exterior Mirrors for Chevrolet Silverado when you shop the largest online selection at eBay. Vibration when braking at higher speeds - not felt as pulses through brake pedal or shimmy through steering wheel - rather, a. When idling, there is a slight vibration coming from the engine bay. I know some vibration is normal, but I feel like my Altima's is worse. 6L Turbo-Diesel engine. Guaranteed fit Chevrolet Silverado Transmission Cooler. Average failure mileage is 23,650 miles. Chevrolet Silverado 1500 Engine Problems. Engine rough idle problems arise because car engines are demanding. After my tune, I drove it on the highway not on the streets so it still does not want to idle in R or D, well it still stalls, not as bad as before the tune, but it is still stalling. I got my PF on April 16. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. It is pretty minor during normal idle but when its cold and the car is idling high it is pretty obnoxious. It seemed to be worst when I was sitting at a stoplight, especially if the car was cold. With its bold proportions and broad-shouldered appeal, Silverado owns the road. Select up to 3 trims below to compare some key specs and options for the 2008 Chevrolet Silverado 1500. A bearded man in his mid thirties, medium height and weight slid out of the driver’s seat with what seemed great reluctance. After doing some research I found some were having success cleaning the throttle body and throttle plate. The most recently reported issues are listed below. As soon as you accelerate or rev up the engine slightly it goes away. 2008 Chevrolet Silverado Consumer Reviews - Rating: Not Recommended - Consumers rated 2008 Chevrolet Silverado in the bottom 49% of 2008 model year vehicles. What causes highway speed vibration? If this is your first visit, be sure to check out the FAQ by clicking the link above. as far as reliability that is good but idles poorly. the engine does this regaurdless of gear. P0507 CHEVROLET Meaning The Idle Air Control (IAC) valve is a Powertrain Control Module controlled stepper motor located on the throttle body. 3 v8 - At about 1800 to 2100 rpm, a high pitched chirp sound is heard. Now the vibration is minor up to 35 mph and gets worse up to 48 mph then settles down. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. Anyone experiencing this issue? Any input of what it may be? Vehicle has 28,000+ on it. The 2008 Chevrolet Silverado has 5 problems reported for rough idle. It only happened for s second and then disappeared. Truck has 262000km (163000 miles) I’m getting a bad vibration when the truck is idling, I’m neutral or in gear. CarsDirect. For example, in some 07-08 Honda Civic models, a failing passenger side mount can cause a vibration and growling noise. Need some advice on intermittent vibration So here's the deal. This is a. The Chevrolet Silverado is a rugged truck that is made for a tough workload. Since I have a Tech 2 scan tool I decided to look for codes first. I have a deep vibration at idle and in gear. 3L V8 with 200k miles on it. Exterior; Fog lamps; Vinyl upper/anti-scuff lower door trim w/integral armrest, map pocket, door pull handle, courtesy lights; Instrumentation; Auxiliary pwr point in instrument p. 2012 VE SV6 Sportswagon with 101,000km. Transmission Noise Problems of Chevrolet Silverado Chevrolet Silverado owners have reported 18 problems related to transmission noise (under the power train category). Thousands of customer transmission cooler reviews, expert tips and recommendation. DEFINITION: Engine runs unevenly at idle. Hi, My 2008 Civic (auto tranny) engine speed tends to drop too low when the engine is warmed up. Find 634 used 2004 Chevrolet Silverado 1500 as low as $2,250 on Carsforsale. however, the vibration goes away the moment i give it gas. I understand that you are experiencing an vibration, shaking, and other issues with your truck and you are looking to resolve this yourself. Vibration was stronger when the engine was cold, when in gear or when power-steering was engaged or A/C was off. And I notice the rpm gauge goes from 500 to 650 sometimes, but the rpms dont change while it shakes. '07 Silverado LT Z71. Average failure mileage is 23,650 miles. So I decided to finally get on here and ask. So if you have this problem, and a spare $40 to throw at it, you might give it a try. I had a 2000 Outback (230k). It is quite normal for your car engine to vibrate at optimum levels during operation. I have purchased this 2nd hand and having a slight idle stumble when in park as well as in drive @ a stop light…etc. They can produce a vibration at idle an uneven or surging idle while coasting in drive at speeds up to 5MPH. i have a 04 chevy silverado with the 5. Re: Yamaha 2008 50TLR Vibration Rodbolt,that makes a lot of sense, so if one carb had a plugged or misadjusted idle jet/screw then it would shake a lot at idle and then smooth out just above idle. Once the truck is rolling all is good. I just bought a used 2008 Honda Civic DX-G. Anyone know of any common problems that may be the cause?. VW has now replaced the whole transmission. See 24 Consumer Reviews, 92 Photos and Full Expert Review of the 2008 Chevrolet Silverado 2500HD. MSRP starts at $55,295. He contacted Chevy Tech Service who asked the Rinke Chevy service manager to try the same test on other Silverado’s. Read reviews, browse our car. com and affiliated sites. I would like to pole other owners of the 4. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. i have changed all the mounts, in fact the last i did was to change the front mount, yet the vibration continues. Now the vibration is minor up to 35 mph and gets worse up to 48 mph then settles down. Showcasing 1130940048 idle in stock now! Air Intake and Fuel Delivery. Since there is no malfunction indicator light, it is not ignition or idle air control valve. 263 likes · 1 talking about this. 2008 gmc sierra vibration Discussion in ' i am getting a vibration from around 40 to 60 mph but i cant feel it in the steering wheels it seems more in the floor. They can produce a vibration at idle an uneven or surging idle while coasting in drive at speeds up to 5MPH. *For vibration related to AFM in 4. Free video to see how to change the cabin air filter on your 2008 Chevrolet Silverado 1500 LT 5. Hello, I am struggling with an issue with my 1983 GMC Sierra 5. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. 2008 Chevrolet Silverado 1500 LT w/1LT My 2008 Silverado pickup is a comfortable ride, it does not ride like a work truck but more like an SUV. because the "base radio may not work, preventing audible warnings if the key is in the ignition when the driver's door is opened. The truck drives very good, but when im in idle I get engine vibration and a ticking sound. It goes away as soon as you start to accelerate or turn off the ac. Sometimes it has a really rough idle. Chevrolet/gmc: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. Getting ready for a trip so i'd like to remedy this issue asap. We have premium components to keep you legal. It is part of GM’s 5 th-generation Small Block engine design that’s named EcoTec3 in pickup trucks, replacing the 4 th. 3litre w/ procharger 2000 Wrangler - 5. A drone or resonance may also accompany this vibration. In drive or reverse at idle i have enough vibration to shake my dashboard and the steering wheel. So I just purcahsed a 95 talon awd turbo. Engine idle speed may vary in RPM. If I break and gas the Idle to 800-900 RPM the engine smooths out. reinstalled balancer- started with out drive belt-vibration still there. They claim no codes came up therefore no issue. Learn more about the 2008 Chevrolet HHR. I know some vibration is normal, but I feel like my Altima's is worse. Detailed Vehicle Recall Notices and Technical Service Bulletins (TSBs) from ALLDATAdiy. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. I recently purchased a new 2011 xc90 two weeks ago. Out of all the issues with my Jeep, Pentastar vibration or rumble is not one of them. Since I have a Tech 2 scan tool I decided to look for codes first. With its bold proportions and broad-shouldered appeal, Silverado owns the road. ChevySilveradoLtd. Originally Posted by wa6qmq You can turn the idle down my 1026r is happy at 1225 rpm a friends is happy at 1050 rpm before there is shacking Is 1025 r idle speed - Page 2 Register. Normally when the throttle is closed the engine fuel injectors will be deactivated until a defined engine RPM speed is reached and the engine brought smoothly to idle speed. I have a 2008 Silverado 5. 9 Cummings 2wd Extra Cab Short box Auto. Did not vibrate in the earlier life of the car, and my tach isn't reading any lower than it ever has at idle. It is just as you have thought--the AFM system. Hello, I am struggling with an issue with my 1983 GMC Sierra 5. Never stumbles or stalls, but you can deffinately feel a vibration when at a stoplight. Detailed features and specs for the Used 2008 Chevrolet Silverado 1500 including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. This engine produced 300 horsepower at 4,400 rpm and 360 foot-pounds of torque at 4,000 rpm. i drive between 100 and 200 miles a day. Inline mounted engines. Two new reds (Dark Cherry Metallic and Deep Ruby Metallic) replace Sport Red Metallic. 3 v8 - At about 1800 to 2100 rpm, a high pitched chirp sound is heard. Specific to: Chevrolet Silverado 1500 2008. Depends on the problem causing the injectors to be weak. 4 is a little rough at idle. seemed to have fixed it or at least made it better. To see how frequently Chevrolet Silverado 1500 problems occur, check out our car reliability stats. Get the best deals on Exterior Mirrors for Chevrolet Silverado when you shop the largest online selection at eBay. The 2008 Chevrolet Silverado has 5 problems reported for rough idle. Read 2008 Chevrolet Silverado 2500HD Owner Reviews, Expert Reviews, Prices, Specs and Photos. 3L 8cyl 6A) Review First I want everyone to know I was a loyal GM truck person. I have recently replaced the fuel pump, fuel filter, and air. Hi guys, so about 2 weeks I overheated my car after my serpentine belt came off and went in the ditch. As soon as you accelerate or rev up the engine slightly it goes away. It is quite normal for your car engine to vibrate at optimum levels during operation. The idle will relearn if you put the vehicle in drive and allow the idle to come down with all accessories off for about two to three minutes. Well fishing and riding the bob too. The vibration may occur at different vehicle speeds but the engine speed will be in the 1200-1400 RPM range. Mechanic's Assistant: Are you fixing your Silverado yourself. He did acknowledge some unusual vibration from the vehicle during idle. When stopped I nolticed that the idle is very rough, and the truck almost shakes, its worse in the mornings, no codes on display , took it to a shop here in calgary and they did a throttle body service , still no difference , booked it for a check up with the dealer next week, truck is under power train warranty, any tips or knowledge on this. GM says fewer than 500 vehicles are expected to have the condition. If necessary, take the adviser on a test drive so they can verify the condition. So if you have this problem, and a spare $40 to throw at it, you might give it a try. Engine rough idle problems arise because car engines are demanding. The 2008 Chevrolet Silverado has 431 problems & defects reported by Silverado owners. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. Browse chevrolet silverado commercial for sale right now. the idle speed vibration could be weak. Finally got rid of engine vibration and shudder by replacing the top left motor mount. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. "With a decent suspension and responsive steering," writes the Arizona Republic, the Silverado 1500's "drivability was good enough to be a capable commuting vehicle for. Power/Fuel. 2008 Chevy Silverado 5. Engine idle speed may vary in RPM. It seemed to be worst when I was sitting at a stoplight, especially if the car was cold. He put it in every gear (P R N and D) and it still existed. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. But hardly anyone references the butterfly on the TBI unit not being adjusted right. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates. See 2008 Chevrolet Silverado HD technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area. I have 3600 miles on my truck. 2003 silverado 5. He said when I bring it back for the climate control issue, he will also mention it. Just recently say in the last 1 thousand miles its been idling rough once put in gear, occasionally when not in gear. 1- i have engine vibration on the idle. Turned out, my front license plate was a little loose, and the vibration at idle speed was just wrong to make it vibrate. 2008 Tahoe rough idle cheap simple fix P0300 Random/multiple cylinder misfire,due to low compression P0171,P0174 2007 chevy silverado 2002 Chevrolet Z71 5. With the AC off there is no vibration even at idle. 3 high idle issue News: As of April 1, 2008 All Classified forums require a Site Supporter subscription. Anyone experiencing this issue? Any input of what it may be? Vehicle has 28,000+ on it. 2004 - 2008 F150 - Vibration at idle - I was wondering if anyone has noticed a vibration coming from the engine/transmission area with the truck in drive and brake applied. Surging idle can be caused by a number of different problems. To me, it meant the idle RPM are too low, so I asked at the shop if they can adjust idle rpm to higher. Does GM ignore you and tell you that your truck is. There is front end vibration at all speeds. See the 2008 Chevrolet HHR price range, expert review, consumer reviews, safety ratings, and listings near you. 11-23-08 06:51 PM - Post# 1570150 2008 VortecMax Has anyone with this vehicle experienced rough idle, delay in acceleration when reapplying throttle, shift points not feeling correct, valve tap when cold, engine knock when hot and low oil pressure. Vibration gets worse at higher speeds. Turned out, my front license plate was a little loose, and the vibration at idle speed was just wrong to make it vibrate. Engine Problem on the 2008 CHEVROLET SILVERADO 1500. on the interstate it does good when you get going the v6 is great in. Always heard a noise/buzz since purchasing my new to me truck. Any suggestions would be welcomed. I've changed the drive belt, pulleys and tensioner unit, but it still does it. 2008 Chevrolet Silverado 1500 Configurations. Read 2008 Chevrolet Silverado 2500HD Owner Reviews, Expert Reviews, Prices, Specs and Photos. A bearded man in his mid thirties, medium height and weight slid out of the driver’s seat with what seemed great reluctance. I know some vibration is normal, but I feel like my Altima's is worse. Simply put the computers think that the brake lights …. The Knock Sensor (KS) system uses one or two broadband one-wire sensors. The shop its in now is about to check the cam shaft pulley. After my tune, I drove it on the highway not on the streets so it still does not want to idle in R or D, well it still stalls, not as bad as before the tune, but it is still stalling. If you remember some time ago after I tore down the front end for powder coat and zombies I got this terrible vibration. Its one of those "it didn't do this when I dropped it off" things. The Chevy Silverado, completely redesigned for 2007, enters 2008 with few changes. And I notice the rpm gauge goes from 500 to 650 sometimes, but the rpms dont change while it shakes. Since then, the Chevrolet Silverado 1500 has earned multiple industry awards, including North American Truck of the Year and Intellichoice Best Overall Value. And while the chiseled hood and striking horizontal elements let you know these trucks share the Chevy truck bloodline, each of the eight trims has its own personality, with distinct grilles, front fascias and wheel designs. The parts and labor required for this service are. FIXED ROUGH IDLING 07 Chevy Avalance 5. 2008 Chevrolet Silverado 2500HD LTZ. Strange vibration on 2008 silverado? I recently had my truck tuned to remove the 90mph governor. This camshaft used the same lift and duration as the older design, but the cam was reprofiled to keep the valve lifters in full contact with the cam lobes as the cam ramps down. Vehicle came with steel wheels from the factory. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. When the car is at idle there is a sound vibration in the car. i've owned multiple GM vehicles and prior Escalade and unfortunately my 2015 wasn't a little vibration it was worse then I've ever had.