UPON HARD ACCELERATION RAMPING ON TO THE ...

1987 Mercury Marquis

Tiny

Anonymous

November, 30, 2012 AT 6:13 PM

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

FOUND 611 RELATED QUESTIONS

Brake Rotor

2 ANSWERS
2 IMAGES

Rotors

7 ANSWERS
2 IMAGES

1 Answer

Tiny

Jacobandnickolas

November, 30, 2012 AT 6:26 PM

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.

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