I just had the same issue - in my case it turns out it was the Tensioner that died (siezed up) and took the water pump with it...
>>> fawcett@bu.edu 11/10/02 07:30AM >>>
Dunno about the vibrating, but my '98 5.2L has had a steady diet of new belts (I'm on my fourth one). I've heard all sorts of reasons from crummy OEM sourcing on their belts to perhaps a problem with the viscous coupling that controls the fan. The current belt has lasted a couple of years now, so I'm tending towards bad belt manufacture for the first three...
Anyway, the symtoms are almost exactly the same as mine (sans the vibration) when the belts have gone south and needed replacing.
Tom
-----Original Message-----
From: dakota-truck@dakota-truck.net [mailto:dakota-truck@dakota-truck.net]
Sent: Sun 11/10/2002 7:44 AM
To: dakota-truck@dakota-truck.net
Cc:
Subject: DML: Bad serpentine belt?
.My '99 V-6 with 33,000 miles started sounding pretty bad when it starts up
cold. In neutral it sounds ok, but when put in drive or reverse it sounds
like groaning and grinding. I thought it might be the transmission, but
yesterday I checked and the noise is coming from the belt-fan area. The fan
seems to be ok. The belt runs smooth in neutral, but when the truck is
shifted into gear the belt starts to vibrate like it's very loose and the
noise starts. When the truck gets warmed up the noise goes away. Does this
sound like a bad belt to y'all? Visually the belt is in good shape and it
seems tight enough until we've shifted.
Thanks,
Cal
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