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Wobbly pully, serp belt off, leaked coolant

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Hello all, new to the forums here mainly because I got a problem with my 95 deville 4.9.

Started with a rattling/grinding noise. I noted when I got to work that the pulley in the middle was wobbling. On my way home (nice and slow 7 mile trip) the belt fell off. Got all the warnings about a/c, engine hot, battery not charging; lost my power steering. My main question is about the pulley. It is mounted to the side of the block I believe... 34282_1320464180958_1511404769_30726025_8047684_n.jpg

Thanks for any and all comments!

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I'm not well versed in the 4.9L, but I'm pretty sure that's the water pump pulley. I don't know if it means the water pump needs to be replaced--it usually does. Is the shaft wobbly and/or do you see any leaking antifreeze? The water pump bearing is likely worn, causing shaft to wobble, which caused the belt to come off.

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That is the water pump pulley and it wobbles and you lose your belt when the water pump is bad, replace the pump, NAPA sells a good one

I had a 91 Seville 4.9, and had many go bad

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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water pump is easy to change. unbolt the pulley by removing the 4 bolts, then unbolt the water pump retainer bolts. (4-6 i believe), clean the old gasket off and installation is opposite of removal


Nice, clean, luxury= fine automobile

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