90 grand marquis 5.0 Bucking/jerking under light accel?

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Mar 7, 2011 | 08:46 AM

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Subzero

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90 grand marquis 5.0 Bucking/jerking under light accel?

Flushed injectors, no codes. Still bucks and jerk almost violently under light highway acceleration. If I mash it or let off completely it runs smooth. Help me out! Thanks in advance for any suggestions.

Mar 7, 2011 | 04:13 PM

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1BADP71

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Sometimes misfires dont throw codes. I would snoop around in the area of your ignition components.

Mar 12, 2011 | 07:27 AM

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Hit Man

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Are you sure its the engine and not the transmission?

Mar 13, 2011 | 05:28 PM

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barry bledsoe

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From: spring hill

bad tps can cause that I think. does the gas pedal seem to be in the same spot when it does it?

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