questions on cts sensor and fan switch
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Member
Joined: Mar 2010
Posts: 139
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From: slater sc
Car: 1989 camaro iroc
Engine: 350 tpi
Transmission: auto
Axle/Gears: 323
questions on cts sensor and fan switch
Does a 89 camaro iroc 350 tpi need a coolant temperature sensor and a fan switch . if you need know i have the dual fan and the relay are up front need the battery .
Joined: Dec 2004
Posts: 16,737
Likes: 994
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: questions on cts sensor and fan switch
The primary fan is ecm controlled. The secondary is controlled bye a temp switch in the cyl header between cyl 6&8. Or if a/c request.
Thread Starter
Member
Joined: Mar 2010
Posts: 139
Likes: 0
From: slater sc
Car: 1989 camaro iroc
Engine: 350 tpi
Transmission: auto
Axle/Gears: 323
Re: questions on cts sensor and fan switch
next questions my dual fan do not work i unplug the relay and insert a paper clip and they came on so i went and brought new relays and they still do not work could it be a bad coolant temperature sensor or something else.
Joined: Aug 2009
Posts: 1,821
Likes: 40
From: Central California
Car: 92 Camaro RS
Engine: LO3
Transmission: T5
Axle/Gears: stock
Re: questions on cts sensor and fan switch
And YES, the CTS ( coolant temp sensor ) gives the computer information for engine management. It is NOT the same as the coolant temp sender that provides info for the temp gauge on the dashboard
Thread Starter
Member
Joined: Mar 2010
Posts: 139
Likes: 0
From: slater sc
Car: 1989 camaro iroc
Engine: 350 tpi
Transmission: auto
Axle/Gears: 323
Re: questions on cts sensor and fan switch
i want see if i am on the right page fan switch on the passenger side works the secondary fan and the coolant temperature sensor work with the ecm and the primary fan and the sensor on the driver side work the gauge
Joined: Dec 2004
Posts: 16,737
Likes: 994
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt








