One problem related to engine exhaust system has been reported for the 2001 Chevrolet 2500. The most recently reported issues are listed below.
2001 Chevrolet 2500hd. 8. 1 liter motor, allison transmission. The truck has multiple problems that the dealer is refusing to acknowledge and fix. -hard starting when hot. When the vehicle is driven and parked for 10 minutes, it will not start. Engine turns over, but does not fire. After an additional 2-3 minute wait, it will eventually start. This happens on a regular basis. Dealer had the truck for 1 week and claims he can not reproduce the problem. They suggested replacing parts with no garantee of the fix. -exhaust failing. The exhaust was replaced under warranty due to loose baffles. It is failing again with the same problem. Dealer again claims the noise is normal. -excessive oil consumption. I had it in for this problem. The dealer changed the oil and had me come in every 500 miles to check the oil level. It used 1 1/2 quarts in 3,000 miles. This is normal to use this much oil. How ever I tow a trailer and plow snow with this vehicle. During these times of towing and plowing, the truck uses 3-4 quarts of oil in 3,000 miles. There are no obvious leaks. The dealer again claims there is no problem. This vehicle was purchased with the large motor and heavy duty transmission specifically for the type of work I expect it to do.