Question about 1996 Jaguar Vanden Plas
At cold start the voltage might show 14 volts but if headlights or heater are turned on the voltage drops below 12 V ... alternator belt seems a little loose (I can turn the water pump pulley w/o belt moving). There is a threaded rod near alternator that I think is the tensioner with nuts on either side of a bracket. Need directions on how to tension properly.
Posted by Anonymous on
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Posted on Jan 02, 2017
I have a 1995 xj6....same problem. I replaced the belts, water pump, and the alternator. Still does it. As I play with the tension on the belt (belt that drives water pump, alternator) it goes away and comes back. If I remove the belt, the metal to metal screech stops. I then, with just the belt, turned the main pulley on the front of the engine, and there was the sound! The main pulley has 2 belts that run on it. Also, 2 pulley tracks. They SHOULD move simultaneously and be super meshed. But the rear one moves on its own under tension until it warms up and I guess, the bushing maybe expands. Now.....how do I fix it??????
Posted on Nov 17, 2009
IT STILL COULD BR THE TENTIONER ,OR IT ALSO COULD BE THE PULLEY ON THE TENTIONER,IT MAY ALSO BE BE ANOTHER UNIT ,ALT,A/C,P/S,SMOG PUMP,ETC THAT IS GOING BAD ,TO CHECK FOR ONE OF THEM GOING BAD ,REMOVE THE BELT & TRY EACH ONE BY TURNING IT BY HAND & SEE IF ANY ARE HARDER TO TURN BY HAND THAN THEY SHOULD BE .
Posted on Dec 05, 2009
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