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92 Shadow "No fan" #977132
04/20/11 09:11 PM
04/20/11 09:11 PM
Joined: May 2006
Posts: 140
Martinsburg WV
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moparman111 Offline OP
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moparman111  Offline OP
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Martinsburg WV
Hi, can one of my Mopar brothern please help me. I purchased a 1992 Dodge shadow with 55k original miles. I have only put about 100 miles on it. All in cool rainy weather. The today with the weather being in the high 70's I noticed the temp gauge up past halfway to hot. When I got home I noticed the fan wasnt running. I ordered a Haynes manual but have yet to receive it. I am going to test the power to the fan motor tomorrow once I get home from work. If I run the car to town and back it should be warm enough to cause the fan to come on. My question after all of that is can someone please chime in and tell me where the fan relay is on the car? Or if this is a common problem what might it be???? Obviously if I have power to the fan and it isnt running I know the fan is bad. Thank you

Re: 92 Shadow "No fan" [Re: moparman111] #977133
04/20/11 09:35 PM
04/20/11 09:35 PM
Joined: Aug 2005
Posts: 11,543
chicagoland,usa
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buildanother Offline
I Live Here
buildanother  Offline
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chicagoland,usa
It may not have gotten hot enough for the fan to run yet. The gauge on some cars has to get up there before fan will run. Some gm's had to get to 240 farenheit.

Re: 92 Shadow "No fan" [Re: buildanother] #977134
04/20/11 09:42 PM
04/20/11 09:42 PM
Joined: May 2006
Posts: 140
Martinsburg WV
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moparman111 Offline OP
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Martinsburg WV
I forgot to mention that I replaced the temp sending unit switch in the motor. When I bought it the gauge didnt work. I think the way the gauge seemed to work now that it was hot. I need to get the DVOM out tomorrow:). If the gauge reads hot again I need to check for power at the fan. No one knows where the relay is for the fan?

Re: 92 Shadow "No fan" [Re: moparman111] #977135
04/21/11 12:04 AM
04/21/11 12:04 AM
Joined: Jan 2003
Posts: 5,788
Hamilton, Ontario Canada
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Magnum  Offline
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Hamilton, Ontario Canada
Quote:

If I run the car to town and back it should be warm enough to cause the fan to come on.




Not sure how far this town is but the length of the trip is not a good test for a fan on situation.

It's usually more of how long you've stopped driving for.
During the trip, fans will not run because air flowing through the grille at speed will keep the radiator cool and your thermostat will regulate.

When you stop driving, or drive slow. Without the airflow through the grill. The thermostat will eventually go wide open. Next the temperature will rise and finally the fan will run to pull the temperature back down to almost thermostat temp.

If you have ac, cycle it. This will force the fan to run, regardless of engine temperature.
If not, after a drive, let it idle. Depending on the weather, most cars will require fan after a 2 or 3 minutes.


69 Super Bee, 93 Mustang LX, 04 Allure Super
Re: 92 Shadow "No fan" [Re: buildanother] #977136
04/21/11 09:24 AM
04/21/11 09:24 AM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Joined: Jan 2003
Posts: 21,050
Niles , Ohio
If its a 4 cyl start it.Then unplug the temp sender the fan should run.The relays are either on the ds fender or the firewall.Been a long time since Ive worked on one.There should be I believe 3 relays.Rocky


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