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If you can turn it by hand as Jim said it is fine. It could have been the tensioner pulley going bad. Let us know if the water pump is seized

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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Highly unlikely. I'd bet the tensioner bearing seized. Be sure to use the proper puller and installer on that drive pulley. Screw up the cam snout and you are looking at replacing the intake cam.

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The water pump did not lock up but the tensioner puller bearing did. That's what took out the pulley on the camshaft. I helped a neighbor with a 1998 Deville with the exact issue earlier this week.

You need a new cam pulley, new belt, and a new tensioner pulley with bearing. You may need to buy the whole tensioner assembly if the pulley is not available separately.

The puller needed to remove the pulley is a power steering pulley puller available from any auto parts store. You might find it in the "loan a tool" programs at some of the chain stores.

You will also need a metric bolt (I don't recall the size but it may be a M8) and a stack of washers to install the new pulley on the camshast. Do not atempt to remove/install the pulley without the proper tools or you will damage the camshaft.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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Good info Kevin!

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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