my 94 grand marquis will start but dies right after

10

Asked by Jun 15, 2014 at 03:21 PM about the 1994 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

I went to the gas station a few days ago and when I went
to start it back up it started but then died right after it
sometimes stay running for about thirty seconds but very
rough and then dies again I changed the fuel filter,
checked fuses vacuum lines all seems good have heard it
might be fuel pump but not sure can any one help

2 Answers

30

Clean the idle air control assembly

10

I changed the iac valve with no luck and I found out when I plug the hose that runs to the iac valve the car stays running but the second I take my thumb off of the hose the car dies again so could that mean there is air getting into the engine from somewhere else which is causing it to Stall out? Maybe a vacuum leak?

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