Three problems related to fuel pump have been reported for the 2001 GMC Sierra. The most recently reported issues are listed below.
Many problems: 4 wheel drive sensor, front end suspension, parking brake, service brakes, anti-lock brakes, speed sensors, radio, center console, engine noise rapping when starting, tailgate cables, anti-theft sensor, and now the battery voltage gauge needle excess dropping when stopping, engine idling to low when stopping. Dealer says problem is normal. Let's test drive a new truck and show me it is normal. This truck is a lemon in my eyes!.
Fuel gauge has never worked properly( jumps from 1/2 tank to empty) today I was drive on ! 40 east at the posted speed of 75 mph with 1/2 tank of fuel and the vehicle just shut down, I did get safley to the shoulder, to find I was out of fuel . . . I t read 1/2 tank previously I had heard of this happening to other GMC owners in this area but it was their fuel pumps. The dealer says it is the local refinery's falt for additvies in the fuel . . And this is the only area where the fuel system is being affected. My employeer had 2 fuel pumps put in her new GMC yukon in 6 months, at her expense. I do not want to pay for defective parts or an vehicle that is unsafe for the intersate.
After fuel pump was replaced, the vehicle wouldn't start. While the vehicle was under warranty, it would not start. The fuel pump was changed but not the connector. The problem resurfaced and quit running numerous times. The service dealer stated that the fuel cap was not tight enough which caused this problem. (the cap was tightened) the vehicle stopped running while at a traffic light more than once. The consumer had taken the vehicle to the dealer and had to pay for repairs because the vehicle was then out of warranty. Several weeks later the problem recurred and the service dealer found no gas pressure and replaced the pump. The vehicle stopped again while the consumer was making a left turn. The consumer had taken upon himself to go under the vehicle and wiggled the wiring harness which started the vehicle. The service dealer changed the fuel pump connector harness. (the connector was burned and pitted).