Misfires Under Load on Mazda 626

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.

RepairPal Verified
Average mileage: 166,082 (128,000–199,328)
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
19 people reported this problem
1 person shared problem details
1995 Mazda 626- 2.2L 4 Cylinder199,328
Engine shutters under load plus very rough idle.
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