fan nightmare
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Joined: Dec 2011
Posts: 111
Likes: 1
From: pennslvania
Car: 1985 chevy camaro,z28
Engine: crate 350,headers,3in exhaust
Transmission: 700R4
Axle/Gears: 308------3.73 auburn unit
fan nightmare
Hi everyone
i have a 1985 z28 camaro,with a fan switch issue,the switch gets blistering hot after only about 5 minutes runing.
i checked the grounds,all the wires witch is only the ground,power ,and accesory,all are not damaged.yet it still gets hot.
any suggestons?
could it be my fan is on its way out?
and i was also wondering what size fuse the factory would have used for the fan,because i have a 25 amp fuse and it dosent blow it but like i said the switch gets way to hot.
i have a 1985 z28 camaro,with a fan switch issue,the switch gets blistering hot after only about 5 minutes runing.
i checked the grounds,all the wires witch is only the ground,power ,and accesory,all are not damaged.yet it still gets hot.
any suggestons?
could it be my fan is on its way out?
and i was also wondering what size fuse the factory would have used for the fan,because i have a 25 amp fuse and it dosent blow it but like i said the switch gets way to hot.
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 5
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
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Joined: Mar 2013
Posts: 121
Likes: 0
Car: 1989 Formula
Engine: 305
Transmission: T-5
Axle/Gears: 3.45 1LE Disc LSD
Re: fan nightmare
Yea there is not a fan switch for the 85's, factory that is. Take a picture of what youre talking about. There should be two wires off the single fan. One is ground and one is to the fan relay. The relay leads to the ecm.
Supreme Member
Joined: Apr 2006
Posts: 4,482
Likes: 10
From: Northern, CA
Car: 1989 Iroc-Z Camaro
Engine: TBI,5.0
Transmission: Automatic 700R4
Axle/Gears: Eaton Posi,3.42,LPW Ultimate Cover
Re: fan nightmare
After being here for 8 years I have heard what seems to be a "thousand" complaints about the switch in the head and or car running to hot = stock thermostat + head fan switch/ECM controlled being set high.
Here's an option to remedy that/those
Post # 23 in this thread. =
https://www.thirdgen.org/forums/cool...ml#post5794397
I also have simple circuits for larger/higher amp fans that are totally independent of any other wiring including the stock.
That's how mine are set up.
Here's an option to remedy that/those
Post # 23 in this thread. =
https://www.thirdgen.org/forums/cool...ml#post5794397
I also have simple circuits for larger/higher amp fans that are totally independent of any other wiring including the stock.
That's how mine are set up.
Last edited by Ron U.S.M.C.; Jul 19, 2014 at 06:59 PM.
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: fan nightmare
I want to say all single fan systems use the fan switch in the head and only the dual fan set ups use the ECM cooling feature.
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Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: fan nightmare
Could 1985chevydude be talking about a " manual switch" he has mounted in the car for activating the fan/fans and not the switch on the head?
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 5
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: fan nightmare
nah ,you got it back wards.the dual fan set up uses the switch in the right head. the previous single fan is controlled by the ECM thru the fan relay
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Direct-Connect ▬—––—▬ But Not Mopar
Originally Posted by 1985chevydude
fan switch issue,the switch gets blistering hot after only about 5 minutes runing
Even if an aftermarket switch was retrofitted to the engine, the switch still needs to power a relay, not the fan directly.
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I Didn’t Jump The Start, The Flagman Was Late
Thread Starter
Member
Joined: Dec 2011
Posts: 111
Likes: 1
From: pennslvania
Car: 1985 chevy camaro,z28
Engine: crate 350,headers,3in exhaust
Transmission: 700R4
Axle/Gears: 308------3.73 auburn unit
Re: fan nightmare
Sorry Bout not getting back fellas.
I said screw it put a new thermostat and bought a fan motor and temp setup that is plugged into the water neck.
Seems to be working great.
Im jealous my dad has 60's muscle cars and they seems alot more senseable
I said screw it put a new thermostat and bought a fan motor and temp setup that is plugged into the water neck.
Seems to be working great.
Im jealous my dad has 60's muscle cars and they seems alot more senseable
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