Blower motor relay

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Dec 22, 2018 | 05:06 PM

Kalaven

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Blower motor relay

Hi I have a 2000 f250 that the heat or a/c do not work, I've checked the fuses and they are goid, I also checked the blower motor itself directly to battery and it works so I am trying to check the relay. Now I've done a lot of research online and they say the relay is located under the dash next to the flasher relay but when I check that location all I see next to the flasher is 2 seperate 5 pin relays # f57b-14b192-aa, when I look that up it says it's for the a/c clutch. Am I looking at the wrong ones, is it supposed to be a 4 pin or 5 pin. Please help I live in Michigan and I need heat in my truck, ty in advance.

Dec 22, 2018 | 05:33 PM

Colorado350

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Joined: Nov 2015

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From: Colorado Springs

Welcome to FTE.

Do you have the F250 with V10 (gas) or 7.3L (Diesel)? The blower motor and resistor are located in the engine bay on the passenger side firewall. Does your fan motor work at all? Only on high? Do you have heat but it’s just not being blown into the cab? Does the truck come up to operating temperature on the idiot gauge in the cluster?

Dec 22, 2018 | 10:04 PM

99f350sd

Lead Driver

Joined: May 2003

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From: Lyndonville, Vermont

I dont think there is a relay.. Check the resistor.. Ill check my 99 book

Dec 23, 2018 | 08:33 AM

projectSHO89

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From: St Louis

The 2000 F250 HAS a blower motor relay. Makes no difference if gas or diesel.

The resistor can NOT cause a complete loss of blower motor function as the HIGH speed setting completely bypasses it.

The blower motor relay is in the under-hood fuse box. See owner's manual.

Dec 23, 2018 | 09:04 AM

Djosbun

Fleet Mechanic

Joined: Oct 2017

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From: Southwest Ohio

When you buy the blower motor resistor, make sure you also buy a new pigtail connector as they usually are seized together and you’ll fight to separate them. Many places sell them together as a kit.

— Dave

Dec 23, 2018 | 09:08 AM

projectSHO89

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Joined: Jan 2004

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From: St Louis

Quote:

Originally Posted by Djosbun

If he has no blower motor function at all and the resistor cannot cause that symptom, why would anyone be dinking with the resistor? Far more likely to just cause new problems by failing to focus specifically on what COULD cause the stated symptom.