AC on...TEMP up.....
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Laughing Gas
Joined: Nov 2006
Posts: 773
Likes: 10
AC on...TEMP up.....
Got the 84 out today for a short trip...351HO..Everything fine with AC off...Gauge around O-R in Normal...Turned on AC on the way home and temp. went to around M...Any thoughts ?.....Thermostat maybe ?..I'm not sure what temp. thermostat I have.....Thanks....Jv
New User
Joined: Sep 2007
Posts: 10
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maby simple maby not
could be as simple as a lose belt or weak tensioner or could be a weak failing water pump or you could just need a good flush and some fresh anti dont think it would be the thermostat or you would have trouble with it regardless if a\c was on or not but if you decide to flush might as well throw a new one in any way i would replace the belt and make sure its tite enough first that a\c is hard to turn and could be slowing down your water pump enough to make the heat go up keep an eye on your pump hope this helps
Posting Guru
Joined: Jun 2004
Posts: 1,635
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From: Niceville, FL.
Could be the fan clutch is starting to fail. Look for signs of a viscous coupling fluid leak around the shaft or sideplay between the body and shaft. Also check for bugs, leaves or other debris partially blocking the radiator.
Last edited by Piffery1; Sep 25, 2007 at 03:17 PM.
