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post #1 of 3 (permalink) Old 07-07-09, 11:23 PM Thread Starter
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Engine jumping in '94 grand marquis

The engine only jumps when stopped or moving slowly while in drive or reverse. Does not jump in park or neutral. Sometimes car almost stalls. Can someone please help me with this?

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post #2 of 3 (permalink) Old 07-08-09, 06:48 AM
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Re: Engine jumping in '94 grand marquis

sounds to me like you are describing a bucking condition... when was the last time the car had a tune-up and fuel filter changed? that would be where to start for this issue.


my 1986 Grand Marquis LS... Rose...
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post #3 of 3 (permalink) Old 07-08-09, 02:10 PM
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Re: Engine jumping in '94 grand marquis

Welcome to the site. Does it do it all the time? Does it ping when you accelerate? Did this problem just start? Could be bad gas.
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