My fuel pump went out. i replaced it with a new one. itworked but when the gas gauge worked it run real good, but if the gas gauge went above full and wouldnt work the engine would miss and not idle good. then the motor just quit and wouldnt start. now i cant get any current to the fuel pump. i have replaced the relays the computer,i dont know what else to check. any suggestions. i also had it put on a analyser and it showed no codes. thank you,d.zacek
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Re: fuel pump problem 1991 s-10 2.8
Sounds like the Vehicle is POSESTED LoL ,
I would Hardwire a Key on wire around the origanal wires. Fuel Pump IS NOT going to set a Trouble Code at all ever, as it is an electrical component like headlights, as for the missfiring & guage reading above full I see nothing in commen with the 2 as long as the Supply and return hoses are
not swaped witch they cant be because it wouldnt run (thinking on keyboard) LoL-- Also check Fuel presure regulator. Hope this Helps you.
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Could be hooked up wrong or not at all. If its getting gas at the engine, might be a clogged line. did you have the fuel filter replaced to.. ? check it. But first CHECK IT HAS GAS IN IT !!!!! Not by the gauge. Put new gas in it...... Good Luck
When you replaced the fuel pump, did you have you switch to the new harness? Check your wiring.
Could it simply be a relay?
My dash gauges went nuts but the car runs.
Do you hear the fuel pump running?
Did you replace the fuel filter? Should be on the frame under the driver.
Bosch fuel pumps are the way to go. The ret seem to **** out after 60,000.
Was the wire harness replaced from the fuel sending unit to the frame, it's a good practice to replace the wire harness when the sending unit is replaced. The wires are know to break and cause sending unit issues from weak fuel pressure to faulty gas gauges.
The other possibility would be a faulty connection to the stepper motor in the gauge it self or just a faulty stepper motor that would need to be replaced. You can do a search on Ebay for stepper motors for your fuel gauge which runs for around $15.00 which is much better then $400.00 for a new cluster if it is and bad fuel gauge stepper motor.
Thank you for using fixya and good luck.
On these model of cars they have trouble with the sending unit in the gas tank on the side of the fuel pump. You can normally buy a new sensor with arm at an aftermarket parts store. However, the gas tnak has to come out to replace the sending unit. hope this helps you. good luck
The pump is only suppose to run for 3 seconds if the engine is off. It will only stay pumping if the engine is running so the circuitry seems to be just fine. You prabably just got a bad pump again. Its common for repair shop to put 2, 3, and 4 pumps sometimes before they get one that works. We find it very common that a gauge will malfunction and the real problem is you just ran out of gas.
Check all fuses and relays. As far as the gas gauge, you may need a new fuel pump, fuel pump relay, or the float on the fuel pump is loose or came off from ear and tear.The mirrors: check the fuses; also, check, or have the button panel in the door checked to ensure the connection are secure. May need a new switch for the mirrors. I am not familiar with this vehicle; but this is what I suggest doing to solve the issues.