1991 Mazda 626 Problem Reports

RepairPal Verified 1991 Mazda 626 Problem Reports

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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.

If the engine stalls when coming to a stop, check the automatic transmission fluid (ATF) level. Low ATF fluid level can cause the torque converter lock-up to stay on, stalling the engine.

If the engine stalls when the automatic transmission is shift into reverse, the intake tube between the mass airflow sensor and throttle body may be split. The damaged intake ducting will need to be replaced.

If the engine surges while being driven in the forward gears, the intake tube between the mass airflow sensor and throttle body may be split. The damaged intake ducting will need to be replaced.

A knocking sound heard from the front or rear suspension while driving over rough roads may be caused by the sway bar linkages. The linkages should be inspected for tightness and condition; there are redesigned linkages if replacement is necessary.