1989 3.1 olds cutlass supreme fuel injected.


Asked by Jun 09, 2014 at 03:33 PM about the 1989 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

My car starts and runs really rough to the point where it stalls out. I replaced the
throttle position sensor the map sensor and a fuel filter. it ran fine for about 1/2 hr drove
it 25 miles and then it died as i turned onto my road. fuel pump is engaging and i have
spark i put fuel into it dry gas and fuel injector cleaner and it still runs really rough i
touch the gas and it stalls. i was told that i need to replace the fuel pump is there
anything else i can try b4 i drop the gas tank and buy a new fuel pump? i tried the fuel
release valve but nothing comes out. fuel pump is my last option. I need suggestion on
what else to try or answers telling me what i need to do to fix it fuel pump?

1 Answer

Claude Masson

Take tour gas cap off and try running it on the road. Same happened on my 88, then cap vent was plugged up, causing a vacuum. The the engine would stall out. Good luck!

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