Engine Temps. A.C. on A.C. OFF
Thread Starter
Racer
Joined: Jun 2002
Posts: 402
Likes: 0
From: Falls Church Virginia
Engine Temps. A.C. on A.C. OFF
This is strange to me, has anyone else notice that when you run your Air Conditioning the car engine temps. are cooler then when the Air Conditioning is off? I would think that the engine temps. would be hotter when the Air Conditioning is running :confused: Is this normal for C-4 ?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
Mine climbs with A/C on too, though I run an underdrive crank pulley with stock water pump pulley (only overdrive alt pulley). I don't use the A/C enough to warrent installing the overdrive water pump pulley from the set.
Maybe your line pressure is high and that kicks the fan on.
Maybe your line pressure is high and that kicks the fan on.
Safety Car
Joined: Aug 2000
Posts: 3,507
Likes: 0
From: Easton CA
Re: Engine Temps. A.C. on A.C. OFF (poppy)
Mine's completely opposite.
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Melting Slicks
Joined: Mar 2002
Posts: 2,904
Likes: 2
From: Anchorage Alaska
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
Dudeyourgettinavette, Descibe what's happening to you? For my own piece of mind :(
Thread Starter
Racer
Joined: Jun 2002
Posts: 402
Likes: 0
From: Falls Church Virginia
Re: Engine Temps. A.C. on A.C. OFF (Dudeurgettnavette)
Thank God someone else is experincing this :D It's OK by me if this is not harming anything, but winter may be interesting.
Safety Car
Joined: Jan 2002
Posts: 4,714
Likes: 0
From: Jeffersonville Indiana
Cruise-In III Veteran
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
Thank God someone else is experincing this :D It's OK by me if this is not harming anything, but winter may be interesting.
Thread Starter
Racer
Joined: Jun 2002
Posts: 402
Likes: 0
From: Falls Church Virginia
Re: Engine Temps. A.C. on A.C. OFF (poppy)
No poppy, I don't run my A.C. in winter that's why I'm worried if overheating is going to be a strange factor. With the A.C. off my numbers are climbing over 240 :confused: With the A.C. on I'm reaching about 200
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
So how is this Possible for my car to run cooler with the A.C. on? Something is screwed up in my C-4 :(
Burning Brakes
Joined: Jul 2001
Posts: 902
Likes: 0
From: Glen Allen, VA
CI 3-4-6-8-9 Veteran
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
I asked Gordon Killebrew about this at Bowling Green and he says it's normal. Cutting on your A/C cuts on your aux fan, so it should run cooler. It's the same fan that cuts on when the car reaches 230 to cool it down.
Mine works normal. Cooler when A/C is on. Too bad I'm a windows guy and don't like the A/C on :D.
He said you could install a manual switch to do this without turning on the A/C or waiting til it hits 230, but it will throw a code...at least one my '94 it will.
Mine works normal. Cooler when A/C is on. Too bad I'm a windows guy and don't like the A/C on :D.
He said you could install a manual switch to do this without turning on the A/C or waiting til it hits 230, but it will throw a code...at least one my '94 it will.
Race Director
Joined: Oct 2001
Posts: 19,653
Likes: 428
From: Melbourne Florida
Cruise-In IV Veteran
Re: Engine Temps. A.C. on A.C. OFF (C4ForGeeGee)
When you turn the AC on the fans come on and stay on till you turn the AC off...if your temp is over 240 when you turn on the AC the fans will definately drop your temp some...however...if your running over 240 with no AC on I think that is a bit high...without AC my fans come on at 228..it might reach 230 but then drops in short order to 205 - 210..there are plenty of threads in the archives about this topic...they generally begin with checking for debris and maybe pulling the radiator for a good cleaning... good luck