12 problems related to manifold/header/muffler/tail pipe have been reported for the 2004 Chevrolet Silverado 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Silverado 2500 based on all problems reported for the 2004 Silverado 2500.
Exhaust manifold bolts breaking off. Almost everyone I know is having this problem with the v8 gm engines. Leads to exhaust leaks, sensor failures and bad catalytic converters- thus failing emissions testing. Hard and expensive to fix.
Passenger side exhaust manifold bolts rust and break off on all gm full size trucks. I have 2004 Silverado 2500 hd with 61k miles, problem started at 56k miles as a mild tick that went away when engine warmed up and progressed to constant leak when engine was under load , two rear exhaust manifold bolts broke off causing exhaust leak. Seems all truck engines have this problem from 1999 -2007. This sounds like a manufacturing defect that should be addressed by gm .
Tl- the contact owns a 2004 Chevrolet silverado. The contact stated the bolts on the exhaust manifold were braking off. The vehicle was taken to the dealer where the technician diagnosed the manifold would have to be replaced. No repairs were made to the vehicle. The manufacturer was made aware of the failure. The failure mileage was 93,500. Sr.
Exhaust manifold bolts broke off for no reason, letting exhaust fums escape under the hood and in the cab of the truck. This seems to be a very common problem on several gm trucks.
The bolts are braking off the exhaust manfolds and the manifolds are leaking and the computer is making the truck go into reduced power.
Engine on passenger side all rusting exhaust manifold bolts rotted and broke off causing an exhaust leak that effects sensors. Brake lines just bellow that rotted and just broke yesterday. Luck ally I was only in my driveway at the time, ironic thing was I just left the shop for my safety inspection, sullivan tire derry nh 03038 should report them as well. This truck has a very severe problem with all parts on the passenger side of the motor rotting my repairs for all rotting parts 2100. 00 these problems are unacceptable and should be fixed by gm . Looking and reading online I am not the only one with these problems. Seems to be happening on most all there 8 cylinder trucks and SUV.
Changed my oil and did a visual inspection on my engine. Come to find I had two exhaust manifold bolts on each side that were broken. This needs to be resolved. I've heard of people having under the hood fires cause of this. This is a safety issue!.
Tl-the contact owns a 2004 Chevrolet silverado. The contact stated that after started vehicle, there was a noise that came from the exhaust system. The vehicle was not taken to dealer or repair shop for inspection or repair. The contact stated that was able to see 4 of the 6 bolts, on the exhaust manifold, were missing the heads on the bolts. The bolts were corroded and broke off. The manufacturer was no made aware of the failure; the contact notified dealer. The failure mileage was 82,700. The failure mileage was 83,000. Yn.
Left rear and right rear exhaust manifold bolts have broken off causing an exhaust leak. Causing potential vehicle emissions problems as well as the potential for carbon monoxide poisoning from exhaust gases getting into the cab of the truck.
My truck is a 2004 chevy Silverado 2500 with 94000 miles and the rear driver side exhaust manifold bolt head is busted off. This is not the only chevy/GMC 4. 8,5. 3 or 6. 0 engine that has this problem. Millions of others have this same problem and from this failure it can lead to future emission problems, catalytic converter problems, exhaust leak in the engine compartment leading to exhaust fumes being leaked into the cab of the vehicle which would be carbon monoxide poisoning. This is a major issue that gm should take care of as a recall !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.
2004 Chevrolet Silverado 2500hd. Consumer states gauges stopped working and the bolts on the manifold were defective.
Four exhaust manifold bolts have broken off since I've owned this truck and the manifold has cracked. It is a design flaw that occurs in many of the similar v8 equipped models and has been well documented on the internet. This should be recalled by gm. This problem also leads to faulty emission readings by the vehicle and the check engine light will go on and remain on until this expensive problem is fixed.