Mechanics

BOIL-OVER AT IDLE.

1997 Isuzu Rodeo • 178,000 miles

I have a 1997 Isuzu Rodeo, 3.2l, auto, 4x4, a/c non-functional. It has been boiling over at idle for the past several days, but runs fine at driving speeds. Pump fan is good, electric fan cycles on start-up, but, as the a/c doesn't work, that's the only time it runs. Could my pump impeller have quit working? It doesn't look like coolant is circulating.
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Kyle.D.Wheaton
March 26, 2012.




I would check the thermostat. The radiator may be clogged as well. The last thing I would look at is the water pump.

Roy
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ASEMaster6371
Mar 26, 2012.
If the thermostat is bad, wouldn't that cause overheating while driving as well? (Confused now.)

Tiny
Kyle.D.Wheaton
Mar 26, 2012.
It could be not open enough to allow circulation at idle.

Roy

ASEMaster6371
Mar 26, 2012.
Ah, gotcha! I'll check that out. Thank you very much.

Tiny
Kyle.D.Wheaton
Mar 26, 2012.
Good luck

Roy

ASEMaster6371
Mar 26, 2012.

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