Having problems with your 1991 Buick Park Avenue ?

My 1991 park avenue starts and seems to run fine for maybe twenty miles, and then will begin to starve for fuel, as it begins to diesel very bad, and only run smooth at very light acceleration. if i pull over and turn engine off for 5 or 10 min. it will run fine again for a while and then do the same thing. i have changed the fuel filter but it didn't help. am thinking it could be a bad fuel pump relay.hopefully not the fuel pump. what do you think?

Posted / edited by AnonymousUser on : 17-09-2018

Answers :

Hi, it could well be the pump but give this a try, next time you use the car leave the fuel filler cap off just for this test then see if the car cuts out or not, im saying this because the problem could be an airlock in the tank, if the breather has become blocked then this could be causing the fuel not to pump correctly so just for one journey leave the filler cap off but dont lose it then have a drive and see if it cuts out.

the thing is with the pump you would have the problem all the time it wouldnt just start after say 20miles the fault would be their constant thats why im thinking air lock.

let me know what happens ok

when the car is hot do you have any troubles starting it let me know
Repair Help & Product Troubleshooting for 1991 Buick Park Avenue

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