2005 Not much heat coming out?? - Ford Powerstroke Diesel Forum
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Old 12-27-2010, 05:16 PM
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2005 Not much heat coming out??

My heater does not blow toasty at all, lukewarm at best. Is there a issue with these trucks or is mine just being a problem child. I am pretty sure i had good heat last year but not this year. The only change is the egr delete kit added late winter last year. The heat temp stays the same wether i drive from 3 hours or 15 minutes. If this has been covered i am sorry as i could not find anything using the search function although i have never found anything using the search function. Thanks.

I have the right amount of anti freeze in my radiator and nothing else seems to be wrong with my truck.
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Old 12-27-2010, 05:19 PM
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Whats the ambient temperature? Could be a thermostat, or maybe look into a cold front.
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Old 12-27-2010, 10:14 PM
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The outside temps are in the mid 40's most of the time, a low of 30 and a high of 60 daily. I do not have a temp gauge but the factory lie o meter always stays in the same place close to 1/2 way
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Old 12-28-2010, 03:39 AM
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Quote:
Originally Posted by 14mins View Post
The outside temps are in the mid 40's most of the time, a low of 30 and a high of 60 daily. I do not have a temp gauge but the factory lie o meter always stays in the same place close to 1/2 way
Nah they generate plenty of heat. Mine will burn you out of the cab if I crank it up and leave it. With no way to monitor your temps I'd try changing out the thermostat first. I've only known a couple to fail on these trucks personally but they both failed open. When you do, spend a couple of extra dollars and go OEM on the thermostat. It's worth it.

FYI the only gauges on these trucks worth a crap are the speedo, tach and boost. Other than that they are just lights disguised as gauges. I guess Ford was REALLY concerned with Joe Blow who doesnt know his elbow from a hole in the ground bringing his vehicle in saying "but the oil pressure gauge drops a little when I get to a stop light, does that mean I have a problem?" or some such... You really dont know you have a problem till it's too late. Mine sweeps up over the course of a few minutes to half way and then never moves again till you turn the engine off.

It goes without saying that any way to monitor your system is way better than nothing. Even a "cheap" ODB2 based monitoring system is worth the money when you're having issues!
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Old 12-28-2010, 04:26 AM
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Check the gray vacuum line that is right behind the oil fill. Mine was disconnected, it was that easy.
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Old 12-28-2010, 04:54 AM
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You can also check the valve that shuts off coolant flow to the heater core when the A/C is turned on in MAX position. Maybe that valve isn't fully opening.
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Old 12-28-2010, 07:43 AM
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Maybe he is turning it to max and it's keeping the heater core closed.
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Old 12-28-2010, 06:37 PM
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does it heat up if you rev it up while stopped? mine does that, its just like the t stat is stuck open, it takes a while to stay warm, i can drive for quite awhile and when i come to a light the air blows cool. i will change the t stat eventually, but i am just lazy right now and it doesn't get really cold here.
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Old 12-28-2010, 11:31 PM
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My excursion wouldn't blow hot when the head gaskets were blown.... it was over pressurizing the coolant system and pushing air and not coolant through it

Im hoping that yours is something far simplier
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Old 12-31-2010, 09:51 PM
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I made a 140 mile trip today and the only time it was warm was for 30 seconds after restarting the truck after lunch. I will look for the vacum line tommorow as that is highly possible since i have replaced injectors, SCT fittings, egr deletes and others stuff. Something could have popped loose.

I pulled a 10k tractor 2 days ago 140 miles and had just a smigen of heat.

I am tempted to go look at the vacuum lines at 1 am now. lol
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