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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van SPONSORED BY:

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Old 09-15-2010, 10:48 AM
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no heat

Early mornings r getting a little cool lately.But it would seem I have no hot air. A/C works fine and the heater worked fine last year. I tried to fine a fuse that was for the heater but could not find a specific one for it. Blower, defrost, etc.. all good. Any idea on a 2007' 6.0? Yes warranty just went out. Also interested in making my turbo whistle louder. Any ideas there?
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Old 09-15-2010, 11:15 AM
dkhollins dkhollins is offline
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Check the vaccuum line on the heater core coolant flow control which is above the passenger valve cover inline with the heater core feed lines. It should be a grey vacuum line that just plugs into the front of it.

As far as making turbo whistle more, you could dump the cat and/or muffler and you'll hear it more.
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Old 09-15-2010, 01:03 PM
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Dittos on what he said about the heater. After truck warms up check both sides of the heater flow valve hose connections to see if they are both hot. If not you probably have a bad valve or bad vacuum source. Check the plastic lines for cracks. Overtime they become very brittle. If you have a brake bleeder (hand vacuum pump) connect it to the valve to see if it moves. If not you probably have a vacuum leak or the vacuum pump has failed. I assume there is a fuse or relay for it.

Concerning the turbo whistle, I removed the cat and left the stock exhaust in place. Got slightly more whistle and reduced turbo lag. Next installed a 4" MBRP T-Back with no cat. Got a lot of whistle and no turbo lag.

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Old 09-15-2010, 01:07 PM
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I agree with checking the heater control valve. However, that valve is normally open, and it takes vacuum to close it. So the problem will not be a missing vacuum line. Check it anyway, and make sure it is open.

I see you have had cooling system work in July, including a new coolant filter. Are you using the supplied dieselsite filter without any modification? The coolant filter does rob some of the flow from the heater core. But it should be a very small amount.
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Old 09-15-2010, 04:31 PM
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turbo

I'm assuming you all removed the cat your self ? I pretty sure here in Arkansas the muffler shop will not do it. Or at least they would not on the (cover ur ears) 2500HD I had. So if this is done I have no need to change out turbo? After I put my programmer on I was told to go with a bigger exhaust for more power. Thanks for heater help. I've never had any work done though on my coolant system.
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Old 09-15-2010, 04:46 PM
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Quote:
Originally Posted by flashart24 View Post
Thanks for heater help. I've never had any work done though on my coolant system.
I'm sorry, I was looking at dkhollins sig and thought it was yours.

Oops!
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Old 09-15-2010, 05:51 PM
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I have had this problem with the heater not working in my 2004 excursion. It started with the rear heater getting cold and by the next day the front heater would have no heat. The problem was that my EGR was blown and water was evaporating, the heater in the rear has heater core lines a couple inches higher than the front so it went first. needless to say I have been through 2 6.0 engines and the second one had studs, fire rings, strait exhause, intake, no chip, EGR delete, and cyl #4 has no compression. I now have a 12 valve to put in it. Everyone wins at 21 sometimes, I just lost twice in a row on this rig. Turbo whistle........ get a 2003 turbo!!!! I have one Ill see ya. Less fan blades = more boost and whistle. I could hit 43lbs with it
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Old 09-15-2010, 05:51 PM
 
 
 
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