1999 Jeep Grand Cherokee - Cooling Fan

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Goose
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1999 Jeep Grand Cherokee - Cooling Fan

Post by Goose »

Does anyone know what the amperage draw should be for a 99 Grand Cherokee engine cooling fan with a 4.0 engine? This Jeep has no engine mounted fan and relies on just the electric fan. Had a bad fan module, Which I replaced, and just for kicks tested the current draw and found it to run as hight as 17 amps. My gut says that this is a little much. Any thoughts? It dies have a 40 amp fuse for the fan circuit.
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ricmorin
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Re: 99 Grand Cherokee cooling fan

Post by ricmorin »

If 17 is the start-up amperage and the circuit is 40, I'd be ok with that. Those fan modules were born to break.
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Goose
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Re: 1999 Jeep Grand Cherokee - Cooling Fan

Post by Goose »

It will run at 10 amps and go as high as 17. I figure it's ok but did not want to get burned like I did on a heater fan module once upon a time. Thanks for the input. :D
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Re: 99 Grand Cherokee cooling fan

Post by Tim Martin »

ricmorin wrote:If 17 is the start-up amperage and the circuit is 40, I'd be ok with that. Those fan modules were born to break.
I just worked on one of them and would agree. Amperage draw is normal.
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steven kiser
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Re: 1999 Jeep Grand Cherokee - Cooling Fan

Post by steven kiser »

I hope you really inspected the plug at the module. Got stung a few times by overheated and expanded connectors.
never argue with a fool, they'll drag you down to their level and beat you with experience
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Re: 1999 Jeep Grand Cherokee - Cooling Fan

Post by Goose »

Thanks for the input. Yes.....The plug on the module and the plug for the fan motor looked good.
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Re: 1999 Jeep Grand Cherokee - Cooling Fan

Post by steven kiser »

There was a time when a lot of my customers had older versions of these in their fold and as we all know they would fail every year or two and were a s.o.b. to do. I took a mini air powered saw and cut a hold inside the headlamp can so I could get in and out quick.
never argue with a fool, they'll drag you down to their level and beat you with experience
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