Three problems related to engine have been reported for the 2001 GMC Sierra. The most recently reported issues are listed below.
I was driving down the road, and the vehicle stopped running, some seconds later it restarted. Twice since then the vehicle would not start, but then started sometime later. I had the vehicle repaired at sharon Chevrolet, they found a code that indicated the crank position sensor (ckp) was at fault. This has corrected the problem. I spoke to gm and they said it was not on recall. This cost me $356. 30 to repair, and it is exactly was is on id #07v521000 recall.
While parking on an icy pavement, the abs failed and caused the vehicle to hit and roll over the concrete parking divider. Vehicle was taken to the dealer. The dealer cleaned the corrosion off both front wheel sensors. The consumer stated that his brakes failed 3 times under 5mph. The consumer stated that the vehicle also has engine trouble and has had trouble since purchase.
2001 GMC Sierra z71 with 5. 3l vortec engine. Engine knocks loudly for approximately 10 seconds on every cold start. Called the dealer and spoke with service department. Person I spoke with stated that "all 5. 3 liter engines do that" and that it was "normal". I emailed GMC with my concern and they replied: we have contacted your dealer to review this concern. According to the information they provided and that we have here, this tick is a characteristic of this engine. It has been determined that this tick is not indicative of any damage being done to the engine and does not compromise the longevity or durability of the engine or its components. Your dealer may be able to provide you with additional information regarding this matter. Ts.