Regarding your defect investigation peo4042 fuel system, gasoline delivery, fuel pump, 2000 - 2001 chevrolet suburban: complaint that fuel pump wiring overheats, resulting in engine stall and fuel leakage from the top of the tank: fyi, this is a common problem with all 1996 and newer chevrolet / gmc gasoline engine trucks, all of which have the vortec engine series. This engine requires high fuel pump pressure (55 - 60 psi), which requires high electrical current for the pump, particularly under conditions of high fuel demand, such as towing (the circuit has a 20 amp fuse). Possible root causes of the problem may be: (1) inadequate wire gauge to the pump, causing a voltage drop and consequently high current draw; (2) high resistance at the fuel pump connector; (3) restricted fuel filter; (4) running the tank low on fuel; (5) increased frictional drag in the pump with high mileage. Unfortunately, there is no recommended "fix" other than to change the fuel filter often, keep the tank over 1/2 full, and replace the fuel pump every 30,000 miles ($600 repair at a gm dealer). I became aware of the problem when the fuel pump fuse blew in my 1999 tahoe at 33,000 miles, stranding us in a remote part of montana. The cause was shorted wires at the fuel pump, requiring replacement of the pump. A search of the chevy truck owner's website (google) will show many owner complaints and suggested fixes for the problem.
1999 Chevrolet Tahoe fuel system complaints
Page 2 of 2: complaints 11 to 27 of 27, newest first, as owners wrote them.
While driving at 70 MPH vehicle stalled in the middle of the highway. Dealer examined the vehicle and determined that the fuel pump was defective.
The engine stalled and the fuel injectors have been replaced twice. Please provide further details.
Fuel pump failed on the highway, causing the vehicle to stop without warning. Mileage was only 33,100 at the time. I have searched a chevrolet truck owners website (google alt.trucks.chevy - advanced search: fuel pump) and found many reports of fuel pump and/or fuel pump fuse failure in 1996-2001 chevy trucks. The typical failure seems to be melting of wires inside the pump, causing internal shorting, which was the failure in my vehicle. Failures were reported typically at 30,000-75,000 miles. Failure can be intermittant and difficult to diagnose. An additional cause of fuel pump fuse blowing is shorting of the oil pressure switch, which is in the fuel pump circuit. Repair was covered under my gm extended warranty, but would have otherwise cost approximately $700.
Consumer states that the fuel tank leaks at the top of the tank. Mr
Exhaust pipe fell off while driving. Pipe has been repaired by dealer several times and continues to fall off. Consumer is concerned about exhaust fumes when operating vehicle. Also, vehicle will stall intermittently while driving.*akthe clutch assembly was also replaced. The engine stalls intermittently. There is a noise emmiting from the fuel pump.
While traveling 35 MPH and without any indication vehicle shutdown. Vehicle was serviced, and technician noticed fuel pump needed to be replaced. Please provide further information.
While traveling at 65 MPH, the engine suddenly dropped to 30, and consumer was almost rear ended. Cause is unknown.*ak. Chevrolet stated the problem was the type of gas being used, consumer stated the fuel injection system has failed 6 times, the fuel injection caused the engine to lose power.
Additional components replaced, these included:alternator replaced twiced, battery replaced, injectors plugging treated three times, tail shaft leaking - replaced, intake manifold replaced, stereo replaced, tall lamp circuit board replaced (both, intrument cluster replaced twice - unsure in current mileage readings are correct, head lamps continue to flicker whil edriving replaced three times, water pump replaced, ball joints replaced, and sterring components replaced. Continual problems and no answers.
Intake manifold leaks coolant at front and rear. Talked to technicans and was told this is a problem that they do these all the time. They had two in the shop the morning that I was talking to them. I asked if the replacements would solve the problem and was told that they would last long enough for the vehicle to get out of warranty. I have two gm vehicle with the same problem one in warranty and one out of warranty. Ugh.
The battery positive leaked onto the brake line which in turn ate through the brake line and a loss of brake fluid and brakes without warning happened. I was traveling at 40mph when went to apply the brakes and they went slowly to the floor as I was stopping and then dropped to floor and I went thru the middle of a intersection (I thank god that traffic was light). I see that in this data base that this is common problem and I can't believe that this is not a recall. How many people have to be hurt of killed before gmc does something about this. I have purchased 8 new gm vehicles in the last 10 years and if this is the way they are going to treat customers, I will not buy another. Needless to say the vehicle will be for sale as soon as it is fixed and another brand will be considered.
Vehicle stalled out due to a fire started by the fuel pump, which burnt through the gas tank.*ak wire going to fuel pump shorted out on frame causing fire resulting in damage to the vehicle.
Vehicle was parked in garage & owner noticed fuel leaking from fuel pump. Took vehicle to dealership & was informed by mechanic that top of fuel pump's electrical connector was causing the leakage. Fuel leakage problem is repairable.
While vehicle was parked noticed fuel pump was leaking fuel. Took vehicle to dealership & was informed by mechanic that the top of fuel pump, the electrical connector, was causing it to leak. Problem was repairable.
No summary listed for above vehicle.
When we took delivery of vehicle, we noticed it was sitting at an angle to the ground (it sagged down 1 1/2 to 2 inches on the left rear) it looked as though the body was twisted. We were assured that any problem would be taken care of. We took back the vehicle to be repaired several times, 4 times we got a rental vehicle to use. The first time we left the vehicle, they changed the gas tank because it had a 9 gal. Dent in it although the skid plate had no damage whatsoever; the bumper was misaligned; the taillamp was protruding as well as the rear-lower portion of the passenger's rear window(too much glue) and the tires were cupping. They have had the truck to aligned and balance tires, however we had a goodyear dealer rebalance those same tires to get the vibration out to no avail. Courtesy swapped different rims and tires from another tahoe. Now it vibrates even more! We were told to be @ courtesy on 6/14/99, that they would have a machine that would pinpoint the source of the vibration. When we got there they didn't have the machine and instead sent a mechanic on a roadtest with us. We were pointing out the vibration to him. He then took us out in another '99 tahoe, this time the ride was smooth, however the mechanic said that it had a low speed vibration(which it did not). We were then told that they could work some figures on another vehicle. We called the next day and we were told that if we gave them $2,500.00 more dollars, we could get the identical vehicle on their lot. First of all, we spent more than the sticker price and had the add-ons taken off with no credit given to us for that. Second of all we were told this was a new vehicle w/ only a few miles on it. After we got in the truck to go home(after it was paid for), we notice that the vehicle had 732 miles on it!!! They sold a damaged demo as a new vehicle. Most of the miles put on this truck are from running it up to phoenix and back. We had pre-arranged service times and were turned away several time
When driving the vehicle there is a fuel leakage, and when stopping and taking off, consumer is not getting enough power when driving. Vehicle has been in the shop four times, and the dealer fixed the problem. But the promblem returned.
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