Seven problems related to engine exhaust system 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.
I own a 2004 Chevrolet Silverado 2500. It has a broken exhaust manifold bolt. After researching this problem on the internet, I found there are approximately 12,000,000 gm vehicles with this problem. Why hasn't the NHTSA issued a recall on these vehicles? it seems to me that the epa would have done something about as the broken bolt is allowing exhaust into the air without going through the converter. I don't know at what mileage the bolt broke or at what speed I was going when it happened.
I have a 2004 chev silverado 4x4 hd 2500 with 6. 1 v-8 engine. On passengers side of engine, rear two bolts are broken attaching exhaust manifold to cylinder head, causing exhaust leak. One bolt is broken off flush with cylinder head making it impossible to repair in the vehicle, the second bolt has just the head broken off however factory thread lock makes it impossible to remove in the vehicle. Niether bolt can be removed while engine is in the vehicle. Engine has only 66000 miles on it and this bolt failure makes using this vehicle very unsatisfactory. Gm should step up to the plate and fix these defects for all of the chevy truck owners with exhaust bolt problems like this and there are many. I want this defect passed along to as many databases as possible. This is a very common problem with these gm vehicles.
The exhaust manifold bolts are broken on my 2004 Chevrolet 2500 hd truck. They are also broken on my sons 2004 GMC 2500 hd and my brothers 2005 GMC 2500hd. Something is wrong with that and something should be done before they catch fire.
Recently I developed an exhaust leak near the front of the exhaust system near the engine. Upon inspection I found the back manifold bolt had been broken off on the drivers side (I may also have a broken bolt on the passenger side as well). I took the vehicle to my locally respected mechanic with the intention of having the broken bolt removed and a new one installed. I was notifed that this was a common problem with these gm vehicles (2004 Silverado 2500hd). I was further informed that there was no way the repair would be simple due to the fact there was no practical manner in which to extract/drill out the broken bolt for replacement. I was told the head would need to be removed in order to effect the required repair which would cost somewhere between $700-$1000. This repair is not cost effective to me for what is probably a $3. 00 bolt. Researching this issue on the internet I found out it is in fact a problem with these vehicles dating back to 1999. Why has gm not been required to repair this item at no cost to the owner if it is this widespread.
Brocken exhaust manifold bolts.
Bolts sheared on the exhaust manifold.
Three exhaust manifold bolts head snapped off, resulting in dangerous exhaust being expelled under the hood.