cooling problems
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 79
Likes: 0
From: titusville FL
Car: 91 camaro rs
Engine: tbi 305
Transmission: 5 speed
cooling problems
for some reason my fan only comes on if i turn the ac on , i'm pretty sure this isn't normal and i barely ever use the ac because it doesn't blow cool air wich is a whole other ordeal. during regular driving the temp stays pretty low but stop and go it tends to get warm. is this a normal problem and relatively easy to fix ?
Junior Member
Joined: Feb 2005
Posts: 29
Likes: 0
From: austin, Texas
Car: 91 camaro rs
Engine: 305 tbi
Transmission: 700r4??
very common problem... i had the same. i found out the easiest way to fix this is to buy an aftermarket temperature control relay. i got mine at pepboys for about 30 and youll need to go buy a fuse...but for me that fixed it...before that i replaced the fan relay, coolant temp sensor, engine temp sensor, radiator,and none of that fixed it but the aftermarket relay did.
Supreme Member
Joined: Feb 2004
Posts: 1,231
Likes: 1
From: Greenville, SC
Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Re: cooling problems
Originally posted by rs coastie
for some reason my fan only comes on if i turn the ac on , i'm pretty sure this isn't normal and i barely ever use the ac because it doesn't blow cool air wich is a whole other ordeal. during regular driving the temp stays pretty low but stop and go it tends to get warm. is this a normal problem and relatively easy to fix ?
for some reason my fan only comes on if i turn the ac on , i'm pretty sure this isn't normal and i barely ever use the ac because it doesn't blow cool air wich is a whole other ordeal. during regular driving the temp stays pretty low but stop and go it tends to get warm. is this a normal problem and relatively easy to fix ?
This is what it looks like:

You have some options on replacing it, if the wiring turns out good. You can get a stock replacement fan switch at any auto parts store, but the factory switches turn the fan on at 238*, which is practically boiling. Both Hypertech and Jet make aftermarket lower temp. fan switches through places like Summit Racing or Jegs for about $40, but you can get the same thing for $13 here, part number 609-106: http://www.madvet.com/shop?frame=1.138.944
Last edited by Benm109; Jun 1, 2005 at 09:28 PM.
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