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#1
05-25-2010, 05:31 PM
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manually controlling the fans
hello all. im hoping someone here will be able to help me. i have an aftermarket (canned tune) PCM. this pcm is set to work with a 180 degree thermostat, however i choose to keep my stock 195 in. needless to say, my cooling fans a pretty much always on. i could send it the pcm back for a change and be without a car for who knows how long. i could just get a new/different pcm with settings to my liking, however i dont have $100 for this project. it would be much cheaper for me to buy some wire, and a couple toggle switchs, and maybe another part or 2
im basically wondering which wires i should splice into for the toggle switch(s). should i just splice right into the wiring harness at the fan shroud, or is there a certain wire on a relay i could splice into without setting an SES?? any input will help, thanks!
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2001 Grand Prix GT: cat/u-bend/resonator delete, zzp PLOG, Custom Intake, DHP PCM, 1981 Fairmont 6cyl 3 speed 1978 Ford Ranchero GT 302 with a few goodies 
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#2
05-25-2010, 09:21 PM
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Re: manually controlling the fans
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-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#3
05-26-2010, 12:02 AM
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Re: manually controlling the fans
Wow, they take you to the cleaners on that thing.
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  2000 Pontiac Grand Prix GTP 3.8L SII V6 S/C 2000 Jeep Grand Cherokee Limited 4.7L V8 ---------------------------------------------------- 1996 Chevrolet Camaro Z28 5.7L V8 1993 Chevrolet Suburban K1500 5.7L V8 1991 Ford Probe LX 3.0 V6 1986 Ford Tempo GL 2.3L 4 cyl.
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#4
05-26-2010, 07:50 AM
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Re: manually controlling the fans
Is there a reason you kept the 195 stat? Seems the easiest and most logical would be to put a 180 in it. If it gets cold where you live in the winter, then change it back in Nov. It takes about 2 minutes to change a t-stat in a 3800. Just my
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 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#5
05-26-2010, 10:40 AM
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Re: manually controlling the fans
Yeah, I've kept my 180* in for a long time and it does suck in the winter. I'm definitely going to swap the 195* back in for this winter so my car doesn't take two hours to warm up.
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2000 Pontiac Grand Prix GTP 3.8L SII V6 S/C 2000 Jeep Grand Cherokee Limited 4.7L V8 ---------------------------------------------------- 1996 Chevrolet Camaro Z28 5.7L V8 1993 Chevrolet Suburban K1500 5.7L V8 1991 Ford Probe LX 3.0 V6 1986 Ford Tempo GL 2.3L 4 cyl.
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#6
05-27-2010, 09:45 AM
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Re: manually controlling the fans
Quote:
Anyone have the instruction sheet on the ZZP kit? I wonder if the kit taps into the relays at the main fuse box.  Note: Although it may look like the cooling fans run all the time they probably don't once you get going with proper airflow to the radiator/engine and the fans are inhibited for turn on at speeds around 40 mph and up.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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