A/C and heat gauge

CHRYSLER GRAND VOYAGER
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LJJOWERS
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GV 1997 Van, 4 cyl., c. 140K miles. recent purchase, replaced starter.

With A/C on, heat gauge goes to high in about 5 minutes. A/C flucuates between cooling/not cooling.

Turn off A/C, heat gauge goes to middle in about 1 minute.

No other overheating symptoms. Standing or driving. can repeat at will. has been in shop for two weeks for this problem.

* cannot believe the back button on the preview page discards the message. :(
Jul 19, 2007 at 1:22 PM
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BRUCE HUNT
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I would put a check on the system for pressure loss. I am talking about the cooling system, not the A/C. Air in can cause problems and let only a small amount of coolant out. Radiator. The air in the system and the loss of ability to pressurize can greatly mess with the way the system behaves for cooling at a consistant level.
Jul 19, 2007 at 1:36 PM
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LJJOWERS
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Took it to another mechanic who first replaced thermosat then measured input and output portal temps. Temps were nearly the same. Radiator was clogged. Replaced and all is OK. Thanks. :D
Sep 19, 2007 at 11:33 PM
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