Misfires Under Load on Mazda 626

Problem Description and Possible Solution

Misfires under load (acceleration) can be caused by leaky spark plug boots. When a spark plug boot leaks, it allows the spark to arc, or jump, to the cylinder head. If evidence of arcing can be seen on the inside of the spark plug boot, new spark plug wires will be needed.

Problem Data
RepairPal Verified
Average mileage: 133,754 (18,200–199,328)
Engines affected: 2.0L 4 Cylinder, 2.2L 4 Cylinder, 2.2L 4 Cylinder Turbo, 2.5L V6
13 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
21 people reported this problem
Viewing 1 - 1 of 1 problem details
Engine shutters under load plus very rough idle.