2002 Mercury Sable Misfiring Misfire Underload Well Hill Fine Idle Cylinder

2002 MERCURY SABLE
16,700 MILES
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Misfiring; misfire when underload; as well going up hill, fine at idle; cylinder 1 and 4; loss of power; changed wires and plugs; and intake gasket, and fuel filer ; checked tps, fuel injector , fuel pressure, coil pack, 3.0 ohc, oreileys code read out p0316, and p0301
Feb 27, 2013 at 2:12 AM
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HOMER1967
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at this point i would suggest that you do a compression test on cyl.1&3.
Feb 27, 2013 at 2:20 AM
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