AC heat
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
Likes: 4
AC heat
This is probibly an OLD trick but I searched all kinds of threads and couldnt find it. I'm sure that you guys know that if you crank your AC in a 97 ps in the winter it gets HOT in there fast!!! I'm not sure about 94.5-96 though. For those of you who already know the trick than I'm sorry for the SPAM. Just my 2.....
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
If you are talking about Max AC then yep, you get more air flow....through the vents though...no defrost mode. That's because it's re-circulating the (warm) cabin air instead of drawing fresh (cold) air from cowl. This ain't spam, good advice...keep posting your ideas/tricks.
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
Likes: 4
I gotcha, I put that up there 2 see what you guys had to say about it, good/bad? I did it for 80k each winter with no problem... I just remember that it was an inferno and with just the heat it would defrost the windshield. I was reading some threads about warm up time and I was of the opinion not to let er idle tooo long when cold, get the oil psi up + a few min and then go easy.... Seemed to work for me. I think idleing messes w the EBV, mine was hanging up for the last 10k of ownership or so....
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
it wont hurt the compresser but any uneeded on time is taking away clutch life no matter how you look at it.
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
Likes: 4
Yeah I hear that, I guess it all comes down to priorities..... I always plugged that truck in when it was below 25 or so just because I thought it was good for it, less wear on the engine at start up. I know it didnt need it though, the first winter I had it it started up w one key cycle on a -35 morning.....What do you think about plugging it in Joe?
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Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
I almost never plug mine in. It always starts, even way below zero. The block heater can use up to 1500 watts of power = 15 x 100 watt light bulbs. IDK how much that amounts to in $$ but it's gotts add up. It's nice to have a warm cab in the morning though 
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whd507
1973 - 1979 F-100 & Larger F-Series Trucks
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Apr 28, 2004 12:07 AM