engine problems

Asked by Aug 05, 2014 at 03:54 AM about the 2002 Pontiac Grand Prix

Question type: Maintenance & Repair

when you first start the car up, its fine. But
after it has been running for a few and for
the rest of the day when you're out running
around every time you shut the car off, if
you wait 5 minutes and start it back up you
will have to start it twice to get it going. So
when you first turn the ignitiob on it starts
up but then it dies. then when u try again
it's fine.and if you let it sit and idle for a
while sometimes it will turn itself off, also
when you pull into a parking space at low
idle it will turn itself off sometimes. And
also sometimes when it does turn itself off
at idle,it will sputter and  a vapor mist will
come out underneath the hood on the
passenger side and dissipate quickly.I have
put a new MAF sensor, a new MAP sensor,
a crankshaft sensor, a fuel pump and a fuel
filter on and still has the same problem.any
ideas?

2 Answers

32,345

Any CEL's?

when all this was happening there was a check engine light on, and it came up for the MAP sensor.Midas automotive is the one who recommended change the MAP sensor because of the CEL.and then I took it back because the same problem, then we went to the MAF sensor and the crankshaft sensor and the new fuel pump and fuel filter.

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