2007 Impala lt flex fuel

Asked by Fourtothefloor Dec 06, 2019 at 02:59 PM

Question type: Maintenance & Repair

I have a crank no start on my car. The fuel
pressure gauge is showing 59 psi while if itoon
cranking, 47 psi on key on but then loses pressure
afterwards. If the pressure gauge is reading the
correct crank pressure, and the rpm gauge moves
(which I believe shows my crank sensors
operating) why won't this car turn over? Is it
possibly leaking after the valve? Hate to drop the
tank for a fuel pump and regulator if it's not the
issue, is this an indication of an issue after the
Schrader valve? Fuel injector clog or leak? I'm lost
on this one guys

34,745

lrodri911 answered 4 years ago

That should be enough fuel pressure. Check spark. If spark is ok, spray some quick start spray in the throttle body, it it runs for a bit it means the injectors are not opening, check the crank sensor.

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Fourtothefloor answered 4 years ago

Would any of those be why I'm getting pressure loss? I would think it would still hold pressure be in those cases. Not sure though.

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