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1989 Ford Tempo AC & fan motor

Tiny
JGRIFFIN
  • MEMBER
  • 1989 FORD TEMPO
  • 2.3L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
Fan and ac works intermittently.
Tuesday, August 11th, 2015 AT 12:13 PM

7 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Sounds like you have a loose ground connection. Check on the underside of the blower motor housing.
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Tuesday, August 11th, 2015 AT 6:06 PM
Tiny
JGRIFFIN
  • MEMBER
  • 4 POSTS
Checked for ground and power to fan motor, grnd good but no power, with the ignition switch on and blower switch on. Since my last question the turn signals have quit working. In t he owners manual it describes #5 position as turn signal lamps and ac fan controller relay, the trouble is that the fuse box in the book is different from the car. On the car there is not a place indicating turn signals and or ac fan controller. Could there be another panel or inline relay or does the push button panel control these functions.
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+2
Wednesday, August 12th, 2015 AT 12:04 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
My reference shows the AC fan relay behind the glovebox on the right side of the dash. The turn signal flasher is the plastic or metal (most likely plastic on your car) can mounted on the fuse panel.
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Wednesday, August 12th, 2015 AT 3:45 PM
Tiny
JGRIFFIN
  • MEMBER
  • 4 POSTS
The fan controller test ok. Could it possibly be the ignition switch, due to the fact that the flashers work fine. This is to me is the only common link between the 2 prob's.
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Friday, August 14th, 2015 AT 8:06 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
It's possible, but doubtful. The hazard flashers are on a completely different circuit that gets power directly from the fuse panel.

When you say the fan controller checks good, I presume you mean that you see resistance but continuity through the switch as you cycle through the settings? Or do you mean the relay is receiving and passing power? Have you checked to see if you're getting power to the fan switch on the dash? The switch that controls the fan speed.
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Friday, August 14th, 2015 AT 10:41 AM
Tiny
JGRIFFIN
  • MEMBER
  • 4 POSTS
Every thing I checked referenced back to the ignition switch. Sure enough I replaced the ignition switch, it corrected the problem. You may want to forward this info. To any one that has a progressive function failure. Thank you for your help. Jim
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Sunday, August 16th, 2015 AT 12:36 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
My pleasure. Thanks for letting us know how you fixed it.
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Sunday, August 16th, 2015 AT 2:59 PM

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