Mechanical fan to da trash can!!!
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Joined: Jan 2010
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Mechanical fan to da trash can!!!
So I decided to do away with the mechanical fan. Gonna replace it with another XJ electric fan. I've done my research and people haven't complained about the set up. Ordered a Hayden 3651 off of Amazon for $30. They sell at O'Reilly for $60... It's the screw in sensor version so I drilled and tapped the thermostat housing for 1/8 NPT and got that installed. All I have left is to finish the wiring and pick up another fan from the junkyard. I'll keep the updates coming.
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From: Greensboro
Year: 1992
Model: Cherokee
Engine: 4.0L
Why not directly wire it to run when the ignition is on? Running it off a sensor will have it turn on and off like the standard aux fan. When the motors running the mech fan is always turning whereas now you only have a fan running when it gets hot.
Thread Starter
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by adamk
Why not directly wire it to run when the ignition is on? Running it off a sensor will have it turn on and off like the standard aux fan. When the motors running the mech fan is always turning whereas now you only have a fan running when it gets hot.
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by 89Laredo
Would of been better off running a HO thermostat housing.
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From: Milwaukee, WI
Year: 1987
Engine: Check
Thread Starter
Senior Member
Joined: Jan 2010
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by 99FreshenedCherokee
dude your ideas are soild. people are hating cuz they probably wouldnt of thought of that themselves.
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Even with just one fan right now it works like a charm! Took it around the block and let it idle in my driveway. Never got above 210*! The fan is set to kick on at about 195*. Hopefully gonna grab another fan Saturday from pick-n-pull. Here's some pics.
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From: Milwaukee, WI
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And there is also a reason the electric fans don't always run.
The fan shouldn't have to run all the time unless your cooling system is flawed.
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From: South Louisiana
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by Gee oh Dee
The mechanical fan is indeed spinning, but the fan clutch is there for a reason.
And there is also a reason the electric fans don't always run.
The fan shouldn't have to run all the time unless your cooling system is flawed.
