How do I trouble shoot the fuel system on 1987 Grand Marquis?
30

Asked by GuruSBSQT May 25, 2019 at 07:07 AM about the 1987 Mercury Grand Marquis LS Sedan RWD

Question type: Maintenance & Repair

I replaced the fuel relay but the car still will not stay running more than a few seconds. The car dies Immediately when I press on the gas pedal.  The car started missing and sturggled to run while I was on the road. Also, when I pressed on the gas pedal the symptons got worse. It finally quit runing on my way home.

1 Answer
30

GuruSBSQT answered 5 years ago

If the Car has no fuel pressure does that mean the fuel pump is bad? The fuses are good the relay was replaced.

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