I recently purchased a 2001 gmc sierra,the first tank of fuel that was put in the fuel gage jumps from full to empty, it has continued to do this until the current date, I have several people I have talked to in my area with same vehicle with different years 1999-2002, experiencing same problem, was told by mechanics that it is the fuel sending unit, have talked to people who's vehicle"s have shut down because of it, should be a recall on this problem,very unsafe!
2001 GMC Sierra fuel system complaints
Page 2 of 2: complaints 11 to 16 of 16, newest first, as owners wrote them.
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. *ph 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) *sc
When the air conditioner (A/C) is used it takes at least eight minutes for the cool air to flow. There is a foul odor coming from the vents that smells like rotten eggs. Also, consumer is concerned with the sound of the engine. Although the vehicle is equipped with a gas engine, it sounds like a diesel engine. There is a irritating noise that occurs intermittently at any speed. The dealer claims that the noise is normal. *ak engine burns 3 qts. Of oil every 3000 miles and the fuel gauge isn't accurate. *ph
Consumer stated the vehicle would leak diesel fuel into the oil, and overflow when the injectors stuck open. The problem happened 14 times. Vehicle would go into limp mode, and would reach certain rpms when this happens.
While driving and with no warning, the vehicle leaked fuel. Dealer notified. *ak injector pump failed, truck would run but fuel would run down the side of the engine with it running on the exhaust pipe, possible fire condition.
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