Problem with cooling fans
#1
Problem with cooling fans
I have a 97 Trans Am fans do not come on, Temp about 140 , checked fuse next to relays, switched relays around, turn a/c on, jumped DLC 5&6 engine off key on , reset pcm, after trying all those fans did not come on. If i jump a wire between d1 and d4 (on the primary fan relay) a fan came on. I did a search and did not see any with similar problem. Any suggestions on what to do next?
#2
Re: Problem with cooling fans
I thinking it is a relay or a wire not plugged it all the way at the relay. I hope this info helps... http://shbox.com/1/4th_gen_tech2.html#cooling
#4
Re: Problem with cooling fans
My 94 had the same problem. I would allways haveto drive with the defroster on or my car would overheat. I guess that kicks the secondary fan on. I put in new relays and CTS and nothing.
#5
Re: Problem with cooling fans
I also unplugged the c100 connector and grounded the drk green and drk blue with the key on and the fans did come on
the fans do not come on with the a/c
the fans do not come on jumping 5&6 on dlc with key on
the fans do not come on with the a/c
the fans do not come on jumping 5&6 on dlc with key on
Last edited by H0TR0Dn; 01-29-2005 at 12:49 PM.
#6
Re: Problem with cooling fans
Originally Posted by H0TR0Dn
I also unplugged the c100 connector and grounded the drk green and drk blue with the key on and the fans did come on
the fans do not come on with the a/c
the fans do not come on jumping 5&6 on dlc with key on
the fans do not come on with the a/c
the fans do not come on jumping 5&6 on dlc with key on
#7
Re: Problem with cooling fans
i had the same problem , never did figure it out so i just bought a slp manual fan switch and now they work, except i sometimes forget to turn them off and they kill my batery
#8
Re: Problem with cooling fans
I have not had a chance to get ahold of a scanner but I was checking continuity on drk blu 473 to the relays and from the c100 connector to j2 is ok but from the c100 to f5 I dont have good continuity about .750 and from j2 to f5 I dont show anything. Does anyone know where the splice is located? I think that I should have continuity at all those points am I wrong?
#10
Re: Problem with cooling fans
I had a problem like that, I hooked up a manual fan switch with a writeup someone did where I hooked into the lines near the pcm, blue and green I think, so I have off, high, low and it shuts off with the car, so I just leave them on low all the time, or high at the track, works perfect.
#11
Re: Problem with cooling fans
Originally Posted by H0TR0Dn
I have not had a chance to get ahold of a scanner but I was checking continuity on drk blu 473 to the relays and from the c100 connector to j2 is ok but from the c100 to f5 I dont have good continuity about .750 and from j2 to f5 I dont show anything. Does anyone know where the splice is located? I think that I should have continuity at all those points am I wrong?
You're right. The splice might be under the fuse panel.
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