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Old 05-13-2009, 08:16 AM   #1
michael91077
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Default 2004 Ion Cooling Fan

My wife has a 2004 Saturn Ion 2.2L, and for about the last week, the cooling fan has not been coming on, at all. it doesnt come on with the A/C or when the car gets hot. I changed the fuse and relay in the fuse block under the hood last night, and still nothing. does anyone know what maybe causing this to happen. a bad fan? a bad fan thermostat possibly? any help would be appreciated.

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Old 05-13-2009, 11:47 AM   #2
lgodave
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Default Re: 2004 Ion Cooling Fan

Not to say it shouldn't be "ON" during Normal Operation, but are you getting a HOT (or whatever warning an overheating radiator gives on an ION... anyone with a manual in front of them?) message to "confirm" that there is a failure of the electronic fan? It only stays on when it is "HOT" and you might just have a "cool" running system.

Hopefully it is possible to check the fan and "sensor" independantly...

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Old 05-13-2009, 03:17 PM   #3
2006 ion2
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Default Re: 2004 Ion Cooling Fan

if the car is not overheating, your fan may be still operational, just not needed, or you just don't notice it coming on, to make sure, try running the fan off 12V un switched and see if it comes on, if it does and the relay and fuse is good, then your system is probably fine. watch your coolant temp, it should be right around the middle mark on the scale, anything significantly higher (a couple needle widths) and you have a problem.

...
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2003 Chevrolet venture lt

trifecta dealer for the U.P. and WI. There is no two door ion. Proudly driving one of the last saturns produced before gm killed the brand.

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Old 05-20-2009, 11:05 AM   #4
SaturnTech122
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Default Re: 2004 Ion Cooling Fan

good power/ground?

...
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Old 07-28-2009, 05:21 PM   #5
GeorgiaDawg80
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Default Re: 2004 Ion Cooling Fan

sorry to piggyback off of this. I had the same issue last year. Cooling fan wasn't coming one, A/C wasn't working when sitting still. Ended up replacing the cooling fan from go-parts.com. Worked great for a couple of months now there appears to be a short at the connector. Don't know if its the plug or receptical on the fan. Basically fiddling with the wiring harness while the car is on will kick the fan on. Anyway know what type of connector is on the electrical plug? How to take it off? And if i can get a replacement at an autoparts store?

Thanks!

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Old 07-28-2009, 09:07 PM   #6
2006 ion2
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Default Re: 2004 Ion Cooling Fan

any gm dealership will be able to help if no one on here can.

...
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trifecta dealer for the U.P. and WI. There is no two door ion. Proudly driving one of the last saturns produced before gm killed the brand.

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Old 08-04-2009, 10:09 AM   #7
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Default Re: 2004 Ion Cooling Fan

update in case anyone has similar issues. turned out to be a short in the power cable. Couldn't find a replacement connector but was able to get the prongs out. Cut with wires and used butt crimp connectors to put on new ones I got from a heatlight upgrade socket for $4. The connectors shape was slightly different but the guts of it were the same so i just put the cables back into my old connector. Unfortunately i realized after the fact that the short had blown the fuse. Replaced that this morining and everything is great!

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Old 08-09-2009, 11:06 AM   #8
crystal scan
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Default Re: 2004 Ion Cooling Fan

Quote:
Originally Posted by michael91077 View Post
My wife has a 2004 Saturn Ion 2.2L, and for about the last week, the cooling fan has not been coming on, at all. it doesnt come on with the A/C or when the car gets hot. I changed the fuse and relay in the fuse block under the hood last night, and still nothing. does anyone know what maybe causing this to happen. a bad fan? a bad fan thermostat possibly? any help would be appreciated.
could be ban fan motor

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Old 08-01-2013, 03:04 PM   #9
buddy2013
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Default Re: 2004 Ion Cooling Fan

I have a 2004 ion with a 2.2 and my fan seems to only come on when the air is on help changed the thermostat fuse relay hook updieect works

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Old 08-01-2013, 03:47 PM   #10
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2003 L-Series 3.0L Sedan
Default Re: 2004 Ion Cooling Fan

Are you aware that cooling fans are automatically controlled by the engine computer; fan(s) only needed when coolant reaches a certain temperature otherwise they stay off. A/c generates heat and this heat is given off by the condenser coils in front of the radiator. If the condenser coils are hot then air flow moves hot air into the radiator so the cooling fan runs to keep air flow constantly moving to prevent engine coolant from overheating.

Manually turning on the cooling fan will may cool off engine coolant low enough that the engine computer may think the engine is cold and richen the fuel mixture while raising idle rpm - the same way a cold engine is run until coolant reaches operating temperatures. Defeating or over riding this automatic cooling fan system may just waste fuel if used indiscriminately.

Is your cooling system over heating and the reason for using a manual fan set up?

...
*The CPS is the heart of the entire EFI system. No cps = dead EFI system*
*There's more to a/c than just a few cans of refrigerant*
*There's more to brakes than just replacing parts*

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