@TheRealDunnDunn Posted September 3, 2010 Report Share Posted September 3, 2010 I HAVE A STRANGE RATTLING NOISE ONLY WHEN I TURN ON MY AC...SOUNDS LIKE THE RATTLING NOISE IS COMING FROM UNDER THE CAR..LIKE SUSPENSION WISE..anybody elses caddy does this... Link to comment Share on other sites More sharing options...
BodybyFisher Posted September 3, 2010 Report Share Posted September 3, 2010 It is likely your hub bearing on your compressor, take the belt off, and roll the ac pulley and rock it to see if there is play or roughness 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 Link to comment Share on other sites More sharing options...
@TheRealDunnDunn Posted September 7, 2010 Author Report Share Posted September 7, 2010 Preciate it...noise seems to be coming directly from the compressor area.. Link to comment Share on other sites More sharing options...
BodybyFisher Posted September 7, 2010 Report Share Posted September 7, 2010 Just so you know, there is a short belt that will allow you to bypass your AC compressor until you get it fixed 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 Link to comment Share on other sites More sharing options...
yahoome Posted February 11, 2012 Report Share Posted February 11, 2012 Just so you know, there is a short belt that will allow you to bypass your AC compressor until you get it fixed Hi - I'm new here but I just got 2001 Seville STS with the Northstar engine. When I went to start it up it broke the belt. I determend that the AC compressor was locked up. I want to get a shorter belt till I can get the car home and replace the compressor - Does anyone know what belt I should buy? Thanks! Link to comment Share on other sites More sharing options...
STS Posted March 29, 2012 Report Share Posted March 29, 2012 If it is the same as my 1997 STS with the 4.6L Northstar it uses a 6K739 belt to bypass the AC compressor. This belt has an outside diameter or 74.5". Link to comment Share on other sites More sharing options...
KHE Posted March 30, 2012 Report Share Posted March 30, 2012 The bearing is less than $10.00 at a bearing supply house. The bearing can be changed without messing with the refrigerant charge. All it takes is some special tools to pull the clutch plate and pulley. Autozone has some of them in their loan a tool program. The others are available from any decent parts store. Much cheaper than a new compressor. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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