1998 Plymouth Voyager cooling fans

VOYAGER0098

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1998 PLYMOUTH VOYAGER
4 CYL
FWD
AUTOMATIC
114,000 MILES

I swapped around the relays from the high beam and low beam with the "blower motor" relay( all the same relays) in the fuse and relay block under hood. The cooling fans still run when the van is shut off I disconnect battery(neg) to shut them off

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JDL

MECHANIC
16,098 POSTS

Welcome to the forum, are you saying the hvac blower motor runs all the time, or the radiator fan runs all the time?

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Tuesday, December 1st, 2009 AT 2:53 PM

VOYAGER0098

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Yes the radiator cooling fans � ��

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Tuesday, December 1st, 2009 AT 8:45 PM

JDL

MECHANIC
16,098 POSTS

I'd pull the radiator fan relay, use a testlite on the circuits. One voltage terminal is battery voltage, hot all the time. There may be a second hot terminal, that is relay control voltage comes from the pcm. That circuit shouldn't be hot unless there is a fan request.

Check the coolant temp sensor. Have the trouble-codes checked, some of the national brand autostores will check codes for free.

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Wednesday, December 2nd, 2009 AT 9:22 AM

VOYAGER0098

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If I may bother you for one more thing? The only relay is located under the driver side headlight per say on the frame? I connected the battery neg terminal this morning and the fans did not stay on! I ran to the store and it seemed to work fine! Bad coolant sensor? Is that located behind the head or block? Or in the radiator?

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Wednesday, December 2nd, 2009 AT 9:59 AM