1995 Ford Taurus Taurus overheating, fan does not work

Tiny
J.STIEG
  • MEMBER
  • 1995 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
I am having problems with my 95 taurus overheating I think the Integrated Relay Control Module is bad. The fan will come on when I run the codes so the motor itself is good I think. I need to test the relay module next, can you get me a wiring diagram for this, thanks.
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Tuesday, December 29th, 2009 AT 5:14 PM

7 Replies

Tiny
BMRFIXIT
  • EXPERT
If the scanner turning on the fan !
I would assume that the relay is OK, as the scanner ground the relay and fan comes on
do you have codes?
What model Taurus you have LX what do you have for engine size?
Let me know and I will try and get you the wiring schematic
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Tuesday, December 29th, 2009 AT 7:16 PM
Tiny
J.STIEG
  • MEMBER
The taurus is a GL with 3.0 vulcan pushrod motor. There is one fan on the radiator, it has three wires coming out of it. Just by looking at it, it seems to have one ground wire and two other wires running to the module. The fan does come on when I check the codes, the codes are 111 332 336 one is pass and other two are EGR related, I dont think these codes are related to the problem. The problem I am having is overheating at idle in park, it does fine at cruise. Fan will not come on while idling, if its not the fan motor or the relay module than what do you think it could be. If you can get me a wiring diagram for this car that would be great. It may be missing an imput to the relay module. Please get back with me as soon as possible, thanks. Jared
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Tuesday, December 29th, 2009 AT 10:28 PM
Tiny
BMRFIXIT
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/99387_fan_12.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_fan1_2.jpg

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Wednesday, December 30th, 2009 AT 6:11 PM
Tiny
BMRFIXIT
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/99387_fan_13.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_fan1_3.jpg

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Wednesday, December 30th, 2009 AT 6:17 PM
Tiny
BMRFIXIT
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/99387_fan_13.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_fan1_3.jpg

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Wednesday, December 30th, 2009 AT 6:17 PM
Tiny
J.STIEG
  • MEMBER
You said the fan module may be good, so next I need to check the imputs to the fan module to confirm that it is good. I need to know the voltage of the two signal wires coming from the PCM going to the fan module. The fan did come on for a few seconds when I checked the codes, so that would mean the 50 amp fuse, and the fan motor ground is good. Problem could be up the line further with the PCM output caused by a bad ECT sensor, but I don't get any codes for it. Can you help me? Thanks Jared
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Wednesday, December 30th, 2009 AT 9:39 PM
Tiny
BMRFIXIT
  • EXPERT
When you run self check the PCM will run through all circuits and will turn the fan on and off
so I will assume that the circuit is Ok and also if had any trouble in the circuit the PCM will set a code for it
no codes related
PCM will monitor coolant sensor for the temp and as soon that the coolant reaches the point that the fan needed the PCM should ground the relay and fan should come on
I would start my test with the coolant sensor
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Thursday, December 31st, 2009 AT 6:44 PM

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