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llplease some one help. i need to know what causes a fac/305 camaros cooling fan(elec)only come on if a/c or bi-level, in in "on" position. what can i do to fix it right. some one cut orig. wires and spliced in to radio wire. i hooked it up to fac. wires and fan won't come on until you put a/c on. HELP PLEASE!!! thanks!
 

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The fans are tied to temp sensor.

Firebird and Camaro at this year level are almost exact mechanically and with wiring except interior.

Where_is_the_cooling_fan_relay_on_a_87_Pontiac_Firebird_Formula_305_AT


Where is the cooling fan relay on a 87 Pontiac Firebird Formula 305 AT?
In: Pontiac Firebird


Answer
I don't have the Formula AT, just a 1987 Firebird with 305. The relay is located on firewall drivers side. There are 2 that look similiar. Go to this web site for a picture and part number. http://www.rockauto.com/ref/ACDelcoDetail.html?15-8333.jpg

or this site to do further searches on the car. http://www.rockauto.com/dbphp/mak,PONTIAC,1987,FIREBIRD+TRANS+AM,1251436,5.0L+305cid+V8+4BBL+(H),ELECTRICAL-SWITCH+xxampxx+RELAY




Answer

why the relay? check the fan temp switch on the right lower engine block.
 
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