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#1
04-30-2011, 09:57 PM
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Car running warm
Drove it for the first time on the highway yesterday. When I went thru the McD's for a drink the temp gauge was about 5/8 of the way across. AF is newer and full, but you know I never did hear the fans kick on. Back on the highway it went back down again. Outside temp was about 75 or so. Thermostat was replaced a couple years ago. Shouldn't the fans be on? When I got home and shut it down, they weren't on then either.
Last edited by mn_1; 05-07-2011 at 10:53 AM. 
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#3
05-07-2011, 09:10 PM
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Re: Car running warm
Quote:
Yes the coolant fans should come on at a certain temp. You need to check the fuses, relay and check to make sure the fans do work by making sure they have curren to them. I would take a ccouple of wires and makes sure they work, then fo from there. Could also be a faulty ECT. For some reason the thread title on the list does not match question.
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#4
05-07-2011, 10:34 PM
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Re: Car running warm
Quote:
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#7
05-08-2011, 09:46 AM
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Re: Drivers door window regulator
Fan will work with a/c only when a/c head pressure hits 175 psi-- is your a/c up to snuff?
__________________
Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles-
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#8
05-08-2011, 09:49 AM
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Re: Drivers door window regulator
The fans turn on at low-speed around 223 degrees and high-speed at around 230. Parked and idling with the heater off should eventually bring the temperature up high enough to turn the low-speed fans on.
Depending on sensor/gauge accuracy it may be closer to the 3/4 mark. To test the fans, disconnect the connector at the coolant temperature sensor located at the thermostat housing. Start the engine, after a slight delay both fans should come on at high-speed (CTS fail mode).
__________________
I love the smell of Stoichiometric in the morning.
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mn_1 (06-05-2011)
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