Have a 1988 fiero 4 cy runs good for the first 15 minuits and then quits. Fuel pump runs but no fuel to injector. Replaced fuel pump relay. there are no error codes. Car will strart up in about 4-5 hours after it cools down again. Dont see anything in the repair manual? Any help out there...
Thank you John Santa Rosa, CA
2007-02-11 13:08:49 · 5 answers · asked by ecomevo 2 in Cars & Transportation ➔ Maintenance & Repairs
Fuel filter.
2007-02-11 13:12:00 · answer #1 · answered by LuckyChucky 5 · 1⤊ 0⤋
LuckyChucky is probably right, but I'm intrigued by the ability to run for 15 minutes. What if there is a problem with your vapor recovery system on your fuel tank? It could be not venting properly, and you are creating a vacuum that eventually your pump can't compete with.
It would be easy and painless to check this theory... Loosen or remove the gas cap. If your car doesn't quit at the 15 minute mark, you've got an issue with your vapor recovery system and/or gas cap vent.
If it behaves just the same, do the fuel filter as LuckyChucky suggested.
2007-02-11 13:17:25 · answer #2 · answered by KirksWorld 5 · 1⤊ 0⤋
Try the cheap stuff first: run some gas treatment through the lines (something friendly to fuel injectors), cost: $2 US.
Next, try replacing the fuel filter. If you haven't done this in awhile (or ever), that might be your first choice, cost: $2 to 5 US.
2007-02-11 13:13:19 · answer #3 · answered by Anonymous · 1⤊ 1⤋
i own a repair shop,and you need to try replacing the filter on it,these get stopped up real easy for some reason on those cars ,and would cause them to do this,but it cant run ,if the filter stops up on it ,id try that its a cheap fix,and may solve your problems with it,good luck,i hope this help,.s
2007-02-11 13:14:25 · answer #4 · answered by dodge man 7 · 2⤊ 1⤋
i agree with dodge man but also keep the pressure regulator in mind just an idea
2007-02-11 13:17:51 · answer #5 · answered by schampoo2002 3 · 0⤊ 1⤋