Question about 1994 Pontiac Trans Sport
Fuel pump was running too long after shutting off engine; pump started making noise then wouldnt start up again. Replaced fuel pump and pump has power from connector under driver seat all the way back to the pump. If fuel is delivered (by plastic pop bottle) to engine, van starts up fine. What other sensors/relays etc. could be keeping gas from getting to the engine??
The oil pressure sensor also has a fuel shut off circuit that goes thru it. IF the oil sensor is going bad, the car will start but soon die once the fuel prime connection trips thru to the oil sensor. Replace oil sensor, which is located around the oil filter under car.
Posted on Apr 24, 2016
If the pump continued to run after shutting off the car you fuel pump relay was probably staying latched. I would replace the relay as well based on your info. Along with the pump the fuel filter should be replaced too and fuel pressure should be checked. Make sure your ground is good also.
Posted on Apr 15, 2014
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Posted on Jan 02, 2017
SOURCE: 1987 pontiac firebird trans am
I HAD SAME PROBLEM MY 87BIRD I HAD TO REMOVE THE FUELTANK AND REMOVE THE SOCKSCREEN OFF THE ELEC.FUELPUMP THE OTHER 87BIRD I HAD TO EXTEND THE HOSE TO BOTTOM OF TANK.ONE I CHANGED FROM FUEL-INJECTION TO 4-BB Q-JET ONE I LEFT ELEC.PUMP IN JUST REMOVED SOCK STILL WILL WORK.MY PROBLEM WAS SAME IT WOULD START AND IDLE FINE,IT WAS WHEN I TOOK IT DOWN THE ROAD IT WOULD DIE ABOUT A BLOCK AWAY.BELIEVE ME I WENT THRU EVERYTHING ALSO.HOPE TO OF HELPED OUT
Posted on Nov 15, 2008
Testimonial: "I got rid of the car, but told the person who bought it what you said, and it was exactly right. thanks."
SOURCE: Fuel Pump Relay Switch
Underneath your hood, behind the passenger side headlight, behind the core support, is a bank of 2-8 relays. One of those relays is the relay needed for your fuel pump. There will also be a fuel pump relay fuse located there. The relay designation should be on the cover of the relay compartment.
Posted on Jan 03, 2009
can you jumper the relay or find the red wire by the battery that is nit connected it will have a green connector jump it to positive and see if pump comes on
Posted on Apr 16, 2009
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