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1999 Mazda 626 Misfires Under Load

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.

Affected Model Years

This issue affects Mazda 626 model years 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, .

23 people reported this problem

  • 1999 199,328 Miles
    Engine shutters under load plus very rough idle.

Mazda 626 1999 Common Problems