Misfires Under Load on Mazda 626
Problem overview
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.
23 people reported this problem
1 commentMazda 626 vehicles with this problem
13 model years affected
Average mileage: 133,754 miles
(18,200 - 199,328)
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