custom hi/lo radiator fan override 92-93
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Certified GM nut
Joined: Feb 2003
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From: Georgia
Got ya covered, on the page listed above first paragraph under "Operation" :
Electric cooling fans operate when engine coolant temperature exceeds a certain value. The PCM completes the ground paths for the maxifuse/relay center on the bulkhead. The relay contacts then close and complete the circuit between the 40 maxifuse and the fan motor.
Electric cooling fans operate when engine coolant temperature exceeds a certain value. The PCM completes the ground paths for the maxifuse/relay center on the bulkhead. The relay contacts then close and complete the circuit between the 40 maxifuse and the fan motor.
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Posts like a Ricer Type-R
Joined: Aug 2002
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You done copying those manuals yet? 
I'll dig through my Chilton'*. Not sure, but there was something funky on one of the generations like this.
Anyway, just do the override like that topic I linked. Works like a charm. I run hi-speed all the time in the summer. Rarely turn it off.
DrJay: i go tthe book open to the page, figuring out what you wanna know tho
me: Might be a false alarm, but I could swear I read about that. Might have been the older Gen covered in my chiltons.
DrJay: posted
DrJay: is that the info you needed?
me: Might be a false alarm, but I could swear I read about that. Might have been the older Gen covered in my chiltons.
DrJay: posted
DrJay: is that the info you needed?
Anyway, just do the override like that topic I linked. Works like a charm. I run hi-speed all the time in the summer. Rarely turn it off.
Thread Starter
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Posts like a Turbo
Joined: Sep 2004
Posts: 253
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From: Canton, Ga
So its just a ground path .... A resistor wouldnt help I dont think. It may even make it come on later ....
Well POOP ! So much for trying to out engineer GM.
JLathem
Well POOP ! So much for trying to out engineer GM.
JLathem
Thread Starter
Senior Member
Posts like a Turbo
Joined: Sep 2004
Posts: 253
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From: Canton, Ga
As an afterthought. I may wire in one of the adjustable tstats for Hotrods from Summit.
Then again the PCM may revolt. I don't want to flip a switch, I may spill my coffee. Geeze they make it hard to mod these things.
JLathem
Then again the PCM may revolt. I don't want to flip a switch, I may spill my coffee. Geeze they make it hard to mod these things.
JLathem
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