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Radiator Fan Doesnt Kick on.. Ever

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Old 06-16-2007, 05:31 PM
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Radiator Fan Doesnt Kick on.. Ever

Last Night I went Drag racing, And when I was in the staging lanes, I'd shut the Car off to prevent it to heat up. However, I was Staged and while waiting for the other guy to stage, I looked down and my temp. Gauge read 260* I Didnt even wait for the lights to come down the tree. I got to the end of the 1/8 mile and the temp was down to 145* I was like ********!! So i poped the hood while going down the return road at 20 mph.

I bought a new fan switch thing mounted on the firewall a while ago, and ended up not needing it. So I went back to using the old one. So today, I put that new one back on and it didnt do a thing. I hot wired the fan and it kicked on.. Andthe First thing I checked was ALL the Fuses. Not one was bad.

Could it be the Temp sending unit on top of the manifold? I have another one on the side of the block which goes to the gauge.

I dont know what is going on. I screwed with it quite a bit today, getting it above 220*...
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Old 06-16-2007, 10:19 PM
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The Fan used to kick on at like a hair above 200*. And this isnt the Stock Temp gauge.
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Old 06-17-2007, 12:37 PM
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i had that same problem
i ran a switch so that i can turn the fan on and off as i please.
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Old 06-17-2007, 07:12 PM
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Thats ***** Rigged
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Old 06-21-2007, 11:55 AM
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Hi, the same thing happened to me. Everything started after i put the MAF on, because the last owner took it off, so i bought it without it.
There's no problem as long as i drive at normal speed, but if i let the engine run without cruising, like in a traffic jam or something the temp starts to raise. What the hell can it be?? By the way the SES light turns on when i hit the gas pedal and then goes off, i believe this happens mostly when the engine temp is reaching the normal range that turns the fan on. i had an old post about this problem. Thankx
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Old 06-21-2007, 11:28 PM
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i dont have a mass air flow sensor and neither does nick. what year is your car?
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Old 06-23-2007, 11:26 AM
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I'm Going to hook up a Switch....
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Old 06-23-2007, 10:53 PM
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theres nothing wrong with a switch as long as you run a fuse to it. mine has served me well.
oh yeah make sure you use a heavy enough duty switch for it so you dont fry it. i used a moroso toggle switch.
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Old 06-24-2007, 08:24 AM
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Need to see what it is programmed in the computer. Is it a stock chip? Does it come on when you turn your ac on?
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Old 06-24-2007, 06:27 PM
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Eh, New computer and New custom Chip. And this started with the Old computer and chip.

30 amp Switch good?
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Old 06-24-2007, 09:29 PM
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yeah dude, even a 10 amp would be plenty
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Old 06-24-2007, 10:03 PM
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I bought a 30 Amp switch today.. what gauge wire? 12?
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Old 06-24-2007, 10:25 PM
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i used 14
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