Please help with A/C troubles

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Jul 26, 2008 | 06:26 PM

robs01f250

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Joined: Oct 2007

Posts: 935

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From: Bowling Green, KY

Please help with A/C troubles

I am usually not on this forum I usually post in the diesel forum. But i have a 1997 explorer with a 4.0 sohc and the ac has quit blowing. I have checked all the fuses and the relays under the hood and they all seem to be fine. So i guess the next part to look at would be the blower motor? The rear air still blows but the front doesnt. Please help!! Thanksin advance

Jul 26, 2008 | 08:42 PM

9explorer8

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Joined: Oct 2002

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From: Virginia Beach

Just to double check, my 98 Explorer SOHC 6 manual is showing:

Under the dash fusebox:

Fuse #2 7.5 amp: blower motor and air bag diagnostis.

Fuse #6 7.5 amp: rear blower motor (without EATC)

Fuse #35 7.5 amp: rear blower motor (with EATC)

Under the hood fuse/relay box:

Fuse #2 40 amp: Blower motor relay

Relay #9: Blower motor relay

Also there is a 'hidden' relay box in the passenger side of the engine compartment slightly below and to the inside of the intake air filter box. Mine has 4 relays in there. Two control the front and rear windshield washer pumps. Not sure what the other 2 do.

Hope that helps

JD

Jul 26, 2008 | 09:59 PM

steve(ill)

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Joined: Jul 2005

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there is also a resistor block to control the fan speed. laly on passenger sisde floor, look up under the glove box at the air duct. should be a 4 pin connector plugged into a resistor block. if it burns out you normally have high speed only. if the plug falls off, no speeds.

Jul 27, 2008 | 08:23 AM

projectSHO89

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Joined: Jan 2004

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From: St Louis

If he has the electronic controls, no resistor block.... If manual controls, then there is one.

Need to determine which system is in his truck.

Steve