Bad bearing or water pump or ??
#1
Bad bearing or water pump or ??
Replaced serpentine belt and belt tensioner pulley. When I cranked engine on without serpentine belt, noise was gone, when I replaced with new belt and new tensioner pulley noise retuned. I put a video on YouTube. If anyone cares to take a look and give their opinion of this here in the link:
Thanks in advance. Currently, the battery warning light is coming on. Alternator has been checked for proper voltage and passed.
Thanks in advance. Currently, the battery warning light is coming on. Alternator has been checked for proper voltage and passed.
#3
I just listened to your u tube link. That sound is the same sound I had. Definitely check the idler pulley it is just a pulley that bolts to the engine. The pulley itself is the same size as the pulley on the tensioner about three in across. It cost about 40 dollars. If it is that I would change the pulley on the belt tensioner also. The belt tensioner pulley is the same type as the idler pulley. so they probably have the same life before they go bad
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Don B (03-14-2014)
#4
You said you replaced the belt tensioner pulley (right arrow on the attached thumbnail). Now replace the idler pulley (left arrow on the attached thumbnail) and I would venture a bet your problem will go away.
This is a very typical sound that I had on other cars that had failing idler/tensioner pulleys (dried up bearings)
This is a very typical sound that I had on other cars that had failing idler/tensioner pulleys (dried up bearings)
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#8
I replaced the drive belt on my XJR recently. I took the radiator fan assembly out of the vehicle and that gave me lots of room to work with. This additional room will allow you to remove the idler and tensioner pulleys with no trouble. DIYer doable with lots of time and patience.
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Gazoo2 (03-17-2014)
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