Engine Misfire Under Load on Mazda MX-3

Problem Description and Possible Solution

Vehicles with a V6 engine may develop an engine misfire under load (acceleration). This can be caused by a valve cover gasket leaking oil into a spark plug well, shorting the spark plug to the cylinder head. To repair this concern, the valve cover needs to be resealed and the spark plugs and wires should be replaced.

Problem Data
RepairPal Verified
Average mileage: 236,600 (236,600–236,600)
Engine affected: 1.8L V6
4 model years affected: 1992, 1993, 1994, 1995
5 people reported this problem
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No solution yet, but I have oil leaking into 2 of the spark plug wells and drenching the spark plugs and this is leading to problems with acceleration