Question about Isuzu Rodeo

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My 2002 isuzu rodeo fan is noisier than it used to be. before it would start up real noisy now it stays noisy the whole time i'm driving, what is the problem, is the cooling system not doing its thing like its supposed to, causing the fan to work harder. need help

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  • J-run Aug 02, 2010

    Dude you have been a great help. I appreciate you sharing your knowledge. I know I'm just some other person out there but I really, really appreciate your help. thank you

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I doubt it would caused by the cooling system. A cooling system malfuntion would show as a higher than normal temp guage. It sounds more like the viscous coupling on the fan is a bit long in the tooth and needs replacement. With the engine off, try to rotate the fan by hand. You should feel a slight resistance but still be able to rotate the fan easily. When the engine has warmed up, rotating the fan by hand should be a little easier. The viscous coupling sits between the fan and water pump. Removal requires removing the radiator.

Posted on Aug 02, 2010

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How to change the water pump? what has to come off first,second third etc.


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1) Remove the upper fan shroud
2) Remove the (4) nuts then the cooling fan assembly
3) Remove the power steering drive belt
4) Remove the air conditioning compressor drive belt
5) Remove the generator drive belt
6) Remove the fan pulley assembly
7) Remove the crankshaft pulley
8) Remove the oil cooler hose
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1 Answer

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Well, it really sounds like you don't have enough reserve power in the battery. You ought to be able to run that fan for 20 minutes, but still start the car. But that is a different topic.

If the switch is old, the points might be ever so lightly welding themselves together from arcing when the fan is needed. Then the switch needs to cool more than it otherwise would to pull the contacts apart.

I would replace the fan switch in the radiator before doing anything else.

That fan runs from time to time even when the coolant is not overheated. It is designed to prevent overheating, not to correct overheating once it occurs (though it will do that too, if it comes to that).

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Does the Shifter Feel normal you feel it engage? if yes then you know shifter linkage is fine problem lies somewhere else..
Next when did this happen while driving did you hear a bang and then nothing?? maybe you Blew out the rear or boke a driveshaft. or Universal joint? this all will be noisy

or maybe you burned the clutch to the point it melted? it will stink badly and seem to linger forever in the air

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please respond back with more detail and your findings

good luck


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