1987 Mercury Marquis Upon Hard Acceleration Ramping On Interstate Engine

1987 MERCURY MARQUIS
92,000 MILES
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upon hard acceleration ramping on to the interstate, engine has a intermittent hard miss. It has new platnums,wires, cap &rotor.
Smooth idle at start up but occasional light miss when warm at idle.
Any help out there?
tom
Nov 30, 2012 at 6:13 PM
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JACOBANDNICKOLAS
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Tom:

CHeck to make sure the fuel pressure is within spec and check engine compression. You may have a cylinder that is low on compression.
Nov 30, 2012 at 6:26 PM
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