Need Help!! (Electric fan)

Darek78

Member

Oct 6, 2004

116

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16

Brooklyn

Jul 2, 2005

#1

• Jul 2, 2005

• #1

Hi guys a need some help geting my problem fixed
on my 95 gt
the problem is that my e- fan runs only with the a/c on but when i shut it of the temp gauage go's all the way to the top and the fan wont go on
i did change the swich for the fan and still nothing ....... :damnit:

any body had that problem before???????
please help is my fan gone south??????
thanks
Derek.N

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jul 2, 2005

#2

• Jul 2, 2005

• #2

For right now, you can wire in a manual switch. Pin 14 is for the low speed fan. It requires fused 12 volts.

Pin 17 is for high speed and requires ground. ALWAYS use your meter to test circuits before installing switches, etc.

But that should help.

An alternative is to run a stand alone controller. I would opt for a variable controller myself (that is the plan for me down the line).

Good luck.

 

Darek78

Member

Oct 6, 2004

116

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16

Brooklyn

Jul 3, 2005

#3

• Jul 3, 2005

• #3

ok thank's for reply but i would like to fix the problem to the way it was ment to be (orgianl) i don't want to make any manual switches
thanks
Derek.N

 

bjl95mustang

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Jan 18, 2000

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Austin,TX

Jul 3, 2005

#4

• Jul 3, 2005

• #4

What switch for the fan did you change? where was it located?

 

Rootus

Officially Addicted

Feb 8, 2003

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Portland, Oregon

Jul 3, 2005

#5

• Jul 3, 2005

• #5

Did you check codes? Maybe the coolant temp sensor is hosed. I think that actually throws a MIL though....

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jul 3, 2005

#6

• Jul 3, 2005

• #6

One can probe the ECT sensor (it is a thermistor) and note its values at various ambient temperatures. It can be within spec (no code) but out of calibration.

Good luck.

 

J

JRPony

New Member

Jun 10, 2005

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Las Vegas, NV

Jul 3, 2005

#7

• Jul 3, 2005

• #7

Disconnect the ECT and put a paper clip in between the two terminals of the connector. The ECM will read this as being super hot and it should turn on the fan if everything is working correctly. If it does turn on, then your ECT is bad.

If the fan still doesn't turn on, then the ECT is probably ok and you have other problems.

 

Darek78

Member

Oct 6, 2004

116

0

16

Brooklyn

Jul 3, 2005

#8

• Jul 3, 2005

• #8

i changed the sensor above t stat that tell's the fan of the water temp and turns the fan on i belive (round plug) and i also changed the temp sending unit
but i need to check my plug that goes in to the fan i did not check that yet my be i will need new plug may be it's burnd out
who know's when i get back home that's first think i'm chcecking
Derek.N

 

B

bayellowstang

Member

Apr 25, 2003

462

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17

Carlisle, PA

Jul 4, 2005

#9

• Jul 4, 2005

• #9

Darek78 said:

i changed the sensor above t stat that tell's the fan of the water temp and turns the fan on i belive (round plug) and i also changed the temp sending unit
but i need to check my plug that goes in to the fan i did not check that yet my be i will need new plug may be it's burnd out
who know's when i get back home that's first think i'm chcecking
Derek.N

Click to expand...

I replaced everthing on the fan system except the EEC itself. Then finally realized it was the stupid ground connecter on the plug. It would work fine until it got real hot.

 

bjl95mustang

Founding Member

Jan 18, 2000

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36

Austin,TX

Jul 4, 2005

#10

• Jul 4, 2005

• #10

Darek78 said:

i changed the sensor above t stat that tell's the fan of the water temp and turns the fan on i belive (round plug) and i also changed the temp sending unit
but i need to check my plug that goes in to the fan i did not check that yet my be i will need new plug may be it's burnd out
who know's when i get back home that's first think i'm chcecking
Derek.N

Click to expand...

If the fan comes on when the a/c is on then it seems like it's something with the sensor. You could have a bad wire from the sensor. The way to see if your fan is fine is to run the codes from the computer. When you plug in the code reader or you jump the reader port with a multimeter and a piece of wire part of the codes is to run a fan self test. The low speed will come on the the high speed will come on. My hanes mustang book shows how to jump the code port. Check this first. Someone here should have an online diagram on how to do this. If not I will scan the page from my book and post it.

Brandon

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jul 4, 2005

#11

• Jul 4, 2005

• #11

There is a link in the 94-95 FAQ to dump codes.

Good luck.

 

bjl95mustang

Founding Member

Jan 18, 2000

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36

Austin,TX

Jul 4, 2005

#12

• Jul 4, 2005

• #12

HISSIN50 said:

There is a link in the 94-95 FAQ to dump codes.

Good luck.

Click to expand...

I might be blind or high off of the gas fumes right now. But I didn't see the link in the faq.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jul 4, 2005

#13

• Jul 4, 2005

• #13

bjl95mustang said:

I might be blind or high off of the gas fumes right now. But I didn't see the link in the faq.

Click to expand...

Brandon, I stand corrected. I don't reference the FAQ often (it takes forever for the page to load on Dial up), but I really thought there had been info at some point in the somewhat distant past for retrieving codes. Now I did not see it. Senior Moment.

Thanks for the correction.

 

bjl95mustang

Founding Member

Jan 18, 2000

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Austin,TX

Jul 4, 2005

#14

• Jul 4, 2005

• #14

http://www.turbotbird.com/techinfo/RetrievingCodes/retrieving_eec_diagnostic_codes.htm

Here is a link I just found. You want to run the key on engine off test. you will here the fan's come on when the relays click.

 

Darek78

Member

Oct 6, 2004

116

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16

Brooklyn

Jul 6, 2005

#15

• Jul 6, 2005

• #15

thanks guy's i got the problem fixed it was the box on the radiator
i got a new peace and the problem is gone
Thanks to everybody that helped me out

Derek.N