96 Mazda 626 jumping problem?
1996 Mazda 626 Sedan Manual.. When the AC is on & the fan turns on the car starts to jump & rpm niddle jumps up & down but now i no longer use the AC but it still jumps after awile of driving i did a tune up but still nothing..
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Have the connection checked specially ground.
May be motor mounts. To check, torque the engine (step on the brake hard, and rev it up at the same time while in drive) Have someone look at the motor as you do that. If the engine rocks up and down or back and forth, then you have a broken motor mount...bring to garage for repair.