Manifold/header/muffler/tail Pipe Problems of Chevrolet Silverado - part 1

Brakes: since approximately 136,000 miles to present miles, the vehicle has exhibited an abs and brake warning light intermittently on the dash. This is a known gm issue that was recalled in certain states, but not all. It stems from faulty soldering points in the abs control module and can affect the vehicles ability to stop correctly which could result in an accident. Engine/ emissions: the passenger side exhaust manifold bolt has broken off. This is a known issue with this 5. 3l engine as well as the 4. 8l and 6. 0l engines. Gm has failed to recall in spite of having thousands of complaints. The issue can cause failed emissions and potentially engine fires. Engine: as of 164,000 miles, the engine is experiencing loud "piston slap". This is a known issue which gm addressed through redesign in later models. It leads to excessive engine wear and potential engine failure. It appears to be a factory defect, yet gm has claimed it is not important despite numerous complaints from customers that the engines have required replacement as a result.

See all problems of the 1999 Chevrolet Silverado 🔎.

Noticed a peculiar exhaust note somewhat like a tick that was reminescent of an exhaust leak. Took vehicle to local muffler exhaust shop and they inform me it is a manifold exhaust leak due to broken bolt(s) on the driver side. Was able to look for myself and I see one bolt head missing in the very back near the firewall.

See all problems of the 2006 Chevrolet Silverado 🔎.

Exhaust manifold bolt on driver side at rearmost part of engine has broken off.

See all problems of the 2004 Chevrolet Silverado 🔎.

Defective exhaust manifold bolts. The bolt heads are breaking off of my 2007 chevy Silverado crew cab truck. This is a well maintained lightly used truck I use for work. After discovering the problem, I went to the internet to search solutions on this problem and that's how I found out that this is a very big problem with this truck engine. There is no tsp on this or a recall, but there should be, engines affected are all v-8's from 4. 8l, 5. 3l, and 6. 0l. Very expensive repair that shouldn't have happened in the first place.

See all problems of the 2007 Chevrolet Silverado 🔎.

2 problems. Anti-lock brakes pulsate intermittently. Engine 6. 0l exhaust manifold bolts are broken. Causing emissions codes to set and exhaust gases into cab. I have found that this a common problem for 1999 to 2007 v8 engines. Gm said there is no recall or warranty for this problem.

See all problems of the 2003 Chevrolet Silverado 🔎.

The contact owns a 2008 Chevrolet Silverado. The contact stated that an independent mechanic advised that the bolts where the exhaust pipe met the muffler were fractured and emitting fumes into the vehicle. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 69,493.

See all problems of the 2008 Chevrolet Silverado 🔎.

The contact owns a 2000 Chevrolet Silverado. The contact stated that while parked, he noticed a loud ticking sound. The contact inspected the vehicle and noticed that the intake manifold bolts were fractured. The manufacturer was not made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 140,000.

See all problems of the 2000 Chevrolet Silverado 🔎.

2006 Chevrolet Silverado 1500 with 5. 3l v8 makes ticking noise when cold. Exhaust smell in passenger cabin. Noise decreases as engine hits normal operating temperature. After a service call to repair. The mechanic stated that the forward most and rear most exhaust manifold bolts were broken off inside the engine block on the driver side of the engine, this allows exhaust gas to excape when cold and accounts for exhaust smell in the cabin. Per the mechanic this is very common and should be a recall item.

The contact owns a 2008 Chevrolet Silverado. The contact stated that there was an exhaust leak. The vehicle was taken to an independent mechanic for diagnosis where the mechanic stated that the manifold was severely corroded. Additionally, the bolts that held the manifold to the engine were fractured. The manufacturer was not made aware of the failure. The vehicle was not repaired. The VIN was not available. The approximate failure mileage was 50,000.

The contact owns a 1999 Chevrolet Silverado. The contact stated that the exhaust manifold studs detached from the cylinder head causing exhaust fumes to leak from the engine. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 90,000.

Started my truck one day and heard a noise I haven't heard before. Looked under hood to see where it was coming from and noticed noise was coming from the exhaust manifold. The bolts have broken off leaving the manifold leaking exhaust fumes. Came to find out that this is a common but very dangerous problem on chevy trucks. Many chevy vehicles have this issue and if not corrected could lead to more engine troubles or worse yet a fire. So now my vehicle is a safety hazard! chevy should recall this safety hazard, which could become dangerous.

I went out to leave for a meeting and started my truck. I heard a ticking noise that I had not heard prior to this morning. I opened the hood to investigate the cause of the ticking and discovered on the left bank one of the exhaust manifold bolts was missing the head. I then went around to the right bank and noticed that the exhaust manifold was broken completely about mid way of the manifold. I have owned this vehicle since it was new off the dealership and have had very little issue with it until this issue popped up. I have done some research and discovered that this is a major problem affecting Chevrolet and gm vehicles with 8 cylinder engines. This vehicle is used as a daily driver and is not used for commercial towing, nor is it used for towing on a regular basis.

The contact owns a 2002 Chevrolet Silverado. The contact stated that while driving, the engine began making a clicking noise. The contact noticed that one exhaust manifold bolt was broken. The vehicle was taken to a local mechanic who advised that two exhaust manifold bolts were fractured. The contact stated that if the vehicle continued to be driven, the catalytic converter would be damaged. The failure recurred because the bolts were defective. The manufacturer was not made aware of the failure. The current and failure mileage was 69,000.

See all problems of the 2002 Chevrolet Silverado 🔎.

Multiple broken exhaust manifold bolts.

I have several broken bolts on my exhaust manifolds. My check engine light goes on and off for emissions related codes. I will not be able to pass a smog test unless this is fixed. Several auto shops want about $1,000 to fix this. Its an ongoing problem and is known by chevy/gm and yet they will do nothing to help or fix it. This should be recalled immediately!.

Exhaust manifold bolts breaking leaving studs in the heads, heating up engine compartments, releases carbon monoxide, affects O2 sensor and catalytic converter. Will not pass emissions in some states. Gm not standing behind this 1999-2008 issue. It is a safety issue and is expensive to fix. Gm mechanics denying any such issues. Please check- in to this. Our whole fleet and our personal trucks affected by this.

See all problems of the 2005 Chevrolet Silverado 🔎.

Exhaust manifold bolts breaking off leaving studs in the heads heating up engine compartment, releases carbon monoxide, affects O2 sensor and catalytic converter, will not pass emissions in some states. Gm not standing behind this 1999-2008 issue. It is a safety issue and is very expensive for us to fix. Gm mechanics say they have not heard of this issue. Please check in to this.

This is the second time it has happend, my exhaust manifold bolt breaks.

Broken exhaust manifold bolts. 3 bolts have broken off on their own. 2 from one side and one from the other. V8 6 liter motor.

The driver side exhaust manifold bolts broke off causing an exhaust leak. This is a serious safety issue causing exhaust gas to enter the cabin! exhaust bolts should not break off.

Engine exhaust manifold bolt nearest the firewall broken allowing raw untreated engine exhaust to be expelled into atmosphere. Exhaust smell in passenger compartment at slow speeds.

During a utah state safety inspection last year it was found that 3 of the 12 exhaust manifold bolts were broken on my 6. 0l engine. The bolt heads were completely broken off/missing. The broken bolts allow the exhaust manifolds to leak causing problems with emissions. If left undetected this problem can cause the catalytic converter to fail. Just to have the bolts repaired is a very expensive >$500 repair that could have been averted by having these faulty bolts changed out early on. Once the bolts are broken they have to be extracted which is very difficult due to the thermal deformation and corrosion. Two of the bolts were in the rear most holes which have very limited access. I have not received any notices from the manufacturer in regards to this problem. I have owned this truck since it was new. I would like to request a recall from the manufacturer due to the fact that it causes emissions problems and increases pollution. If you consider how many of these trucks, tahoes, and suburbans have been on the road since 1999, the increase in pollution is considerable.

While idling at a red light the smell of exhaust fumes became prevalent inside the passenger cabin. Upon inspection of the exhaust system it was determined 5 of the exhaust manifold bolts had prematurely failed allowing exhaust gas to escape from the engine into the engine compartment and into the passenger cabin. The vehicle is currently used sparingly where family members or friends are not allowed to ride in the truck until the exhaust manifolds are repaired.

There has been a long time problem of broken exhaust manifold bolts on 1999 to 2007 chevy Silverado and GMC sierra pickups. This problem is on 80 to 90 percent of the trucks with in them years this is millions of vehicles on the road. These vehicles should be recalled by general motors due to epa laws and emission standards not being able to be passed when these bolts break.

The exhaust manifold bolts are broken off (one on each side at the rear of the motor resulting in an exhaust leak (ticking noise) and also check engine light "on" bad emission codes.

: the contact stated the vehicle had a defect in the exhaust pipe. The dealership made the repairs according to the general motors bulletin. After the repairs, the brackets were observed extended 3. 5 to 4 inches from the vehicles frame. This repair created a safety problem because the bracket could easily collide with road bumps. When the manufacturer and dealership were contacted both offered to return the exhaust pipe to its original status, which the contact considered unacceptable.

The contact stated the exhaust manifold warped and caused the studs to snap off. This could cause the exhaust to leak on a cold start. The vehicle was taken to the dealership, but has not yet been repaired. The contact's son-in-law discovered this problem after inspecting the vehicle because he had the same problem with his vehicle. He stated the original studs were too small, and the new studs were bigger. Left and right exhaust manifold bolts broke and were replaced.

Warranty on catalytic converters on chev Silverado 1500 v6 4. 3 went bad corrosion inside rattling. Replaced ,but not the muffler which was checked at same time and the bellow was found to have been loose due to corrosion,and debris from the converters, but was not covered on warranty. Why? I was informed it wasn't 't part of the exhaust system. ??? the exhaust goes through the converters and out the muffler.

While driving under normal driving condition, no bump or obstacle on the road exhaust system separated and dropped, but stayed attached to its structure. The muffler dangled. The cause of the failure was unknown because the vehicle wasn't been inspected by a dealership nor mechanic.

1998 Chevrolet Silverado pick-up had what appeared to be radiator leak. After further diagnosis, what was actually the problem was that the fitting in the intake manifold used to connect the coolant hose was made of a different metal than the intake manifold; the part crumbled while trying to fit the coolant hose over the fitting by hand (no tools involved!). I now have a truck in the garage that I cannot drive until it is fixed because the part does not "fit" due to the corrosion where the dissimilar metals came into contact and corroded. The "neck" of the part is still corroded on the manifold and a new part cannot be installed until the corroded metal/fitting is cleaned out. Corroded part is available. Digital photo of corrosion available. Corrosion not yet repaired.

See all problems of the 1998 Chevrolet Silverado 🔎.

I have a loud ticing noise coming from the left rear of the engine. While I was pulling my 5th wheel the noise kept getting louder and louder and had loss of power. By the time we got to the camp ground it sounded like I had lost my mufler. We took it to muffler man of ludington and they discovered that 4 exhaust manifold bolts had sheared off, 2 on left year and 2 on right rear of both manifolds. They took the manifolds off and replaced all the bolts with new ones except for the very left rear was sheared off flush and could not get a drill in to drill out and tap. In order for them to get this out they would have to pull the head which would have cost $1000. 00. They put it back together and the tic was gone. This only cost me 6 hours of vacation with my family and $200. 00. The tic has returned.

While driving at low speeds vehicle vibrated and the consumer heard a loud humming noise. Dealership informed the consumer that the problem pertained to the muffler.

I own a Chevrolet 2500 Silverado truck, four wheel drive with the 6. 0 liter engine. There are three bolts broken off in the intake manifold of the truck due to what I believe was over torquing at the factory.

Intake manifold gasket was cracked and leaked out all water and severely overheated engine. The mechanic here at work says that he has changed a few hundred of these here at work were we have thousands of chevy trucks that are this same engine.

The gas pedal sticks. I have to clean my throttle body out with cleaner about every 1000 miles. Even after a cleaning it still sticks a little. This is a safety concern, because I have to use more pressure on the gas pedel, then it unsticks and the truck lurches foword with no control.