Car Problem Reports

Mazda 626 Misfires Under Load

Mazda 626 Problem
16 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002

Engines Affected: 2.0L 4 Cylinder, 2.2L 4 Cylinder Turbo, 2.5L V6


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.