2000 jeep Cherokee sport 4.0 cooling fan won't come on - JeepForum.com

 
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post #1 of 3 Old 05-23-2013, 09:41 AM Thread Starter
MATTHEWOPO
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2000 jeep Cherokee sport 4.0 cooling fan won't come on

Ac cooling fan won't come on replace relay high pressure switch jumped fan and it does work ac blows cold for a while the blows warm cause fan wont come any ideas

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post #2 of 3 Old 06-12-2013, 07:18 PM
bobbo_xj
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Originally Posted by MATTHEWOPO
Ac cooling fan won't come on replace relay high pressure switch jumped fan and it does work ac blows cold for a while the blows warm cause fan wont come any ideas
Poss you have a bad/loose connection at the relay? When you say jumped fan do you mean you jumped at the relay socket?

2001 XJ Sport, 173k mi.
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post #3 of 3 Old 06-13-2013, 11:20 AM
CJ7-Tim
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Originally Posted by MATTHEWOPO View Post
Ac cooling fan won't come on replace relay high pressure switch jumped fan and it does work ac blows cold for a while the blows warm cause fan wont come any ideas
Describe fully under what conditions the e-fan will not come on. Normally the 1999-2001 e-fan only runs when engine temperatures exceed about 218*.

With the engine running, remove the wire plug from the Coolant Temperature Sensor on the thermostat housing. The e-fan should run and the Check Engine Light should come on. If the e-fan runs, the fan, fan relay, and fan are all good.

IF your A/C blows cold then hot, you have an A/C problem.

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