91 caprice heating

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Jul 23, 2013 | 9:09 AM

zcap

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91 caprice heating

hi guys,
i have a 91 caprice and there is a problem. it starts to heat up when it is not moving or in traffic but is normal at higher speeds. i recently had the radiator cleaned. any suggestions ??
thank you in advance

Jul 23, 2013 | 9:57 PM

200OZ

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Maybe the clutch fan is bad.

Jul 24, 2013 | 4:34 AM

zcap

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Thanks for the advice . I will check it but it it does not make any rattling sound at all

Jul 24, 2013 | 8:44 AM

200OZ

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Rattling doesn't usually come with a bad clutch. When the engine is at operating temp the fan should be tight, hard to spin the fan by hand. If it's easy, the clutch is no good.

Jul 26, 2013 | 5:31 PM

zcap

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i tried rotating it i could do it with two fingers. so i think i will replace it.

Jul 26, 2013 | 5:37 PM

zcap

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can the water pump be also causing the problem ??

Jul 28, 2013 | 12:36 PM

200OZ

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Yeah, the water pump could be the problem, but unlikely. Is your coolant level good? I should have asked you this first, but I assumed it was full. You should be able to move the fan, but when the car is hot, AND NOT running the fan should be harder to rotate by hand with quite a bit of resistance.

Mike

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Jul 28, 2013 | 8:51 PM

zcap

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i keep refilling the coolant when it decreases. maybe twice a month or so

Sep 25, 2013 | 8:39 AM

WyrTwister

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From: USA

Quote:

Originally Posted by zcap

i keep refilling the coolant when it decreases. maybe twice a month or so

Was it getting hot enough to blow coolant past the radiator cap ? Or do you have a leak ?

If you have a leak , I would sure try to fix that , as soon as you can .

Looks like a fan clutch is a little less than $ 40 + freight , from Rock Auto ?

Or , I suppose you could add an electric fan ? I have never done that . But have given it some thought on my R12 -> R134a project , to increase the cooling effeciency of the A/C .

God bless
Wyr

Last edited by WyrTwister; Sep 25, 2013 at 10:06 AM.

Dec 16, 2013 | 11:24 PM

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zarajack

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The temp sensor may be bad.
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