I really don’t see manual fan switches being talked about in here so I’ll ask. Anyone install one in a Cobalt? I know fan switches are really popular with f-body cars, especially for track purposes.

The Build Book mentions one, but does not tell you how to hook it up.

Someone needs to make a kit… it would be nice for the track (not that our cars run that hot).

 

I have an override mounted under the hood. IT is a jumper wire inline with a toggle switch. I have two of them, one for fans, one for intercooler pump.

 

wiring a fan switch shouldn't be that hard. F-Body's ran the extra fans because they had a severe problem with over heating. i have my fan on my IROC wired to run constantly as long as the ignition is turned on and i still ran around 190 degrees and when i turned it off it would blow coolant everywhere. granted i have about 550 hp 383 tpi in it so it creates alot more heat than a normal L98.

 

diagrams , pinouts, wire colors........how bout a how to......? this is the key many of us need for track use.

 

Its been posted a ton already. I have a crude picture in my gallery. All I did was jump the high fan relay and then jump the intercooler pump relay. I use fusible wire.

 

Alright here it is Jonel. It's not exactly a manual switch as it is a complete over ride. https://www.cobaltss.net/forums//showthread.php?t=23151

This can also be done with HP Tuners. That is how PsykoStevo tunes.

 

I have my fans set with HPT to run 100% too. But it doesn't help when the car is not running. When I go to the track I get there, flip on my fan and IC pump switch and never turn it off until I leave. The fans and pump run when the car is on or off.

 

All of this sounds like people are just overriding and programing with HPTuners.
Can we just hook up a toggle switch in the car and kick the fan whenever?

 

Here is what Im thinking of hooking up with the extra fans for the intercooler I just picked up. I have used these many times beofre on my streetrods and they work very well.

http://store.summitracing.com/partde...5&autoview=sku

 

ok, here is WoponTOur's mods for either the CAC and FANS with switch or via jumpers and removing the relays.

FAN MOD with 2 relays and Jumper for COOL SER/PAR relay






CAC Intercooler pump mod with relay and switch



Jumper version without switches

PIC 1 of 2



Diagram 2 of 2








direct links for downloading
http://i65.photobucket.com/albums/h2...an20Mod_sm.jpg

http://i65.photobucket.com/albums/h2...CAC20Modsm.jpg


these are the original size. simply remove the space


http://www.re dlineforums.com/forums/attachments/tuning-electronics/3902-how-wire-fan-switch-cobalt-fan-mod_sm.jpg?d=1150696454



http://www.re dlineforums.com/forums/attachments/tuning-electronics/3904-how-wire-fan-switch-cobalt-cac-modsm.jpg?d=1150696516







BTW: metripack #12129497 cost at the dealer is 2.50 usd per piece