Engine turns off when i stop pressing the gas pedal
65

Asked by Mohamed May 20, 2018 at 03:16 PM about the 1997 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

Hello,
my Grand Marquis's engine stops when I move my leg away from the gas
pedal and start braking, it happens very frequently, I've replaced all of the
spark plugs along with their cables, changed the gas filter, cleaned the
injection parts with a spray, but it still happens. Does pressing the brake
pedal has to do anything with this? the diagnostic check says that the
electrical parts are good, but I doubt it.

3 Answers
590

GuruWR4JB answered 6 years ago

It's kind of hard to explain you will have to let a mechanic Drive the vehicle so they can get a feel of when it actually shuts off that's the only way they will know exactly what the problem is

Mark helpful
65,590

firebird338 answered 6 years ago

Sounds like you have a bad brake booster check valve. Valve is bad letting air from the brake booster to be pushed back into engine.

Mark helpful

Your Answer:

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