How to change thermostat? - Ford Powerstroke Diesel Forum
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post #1 of 20 Old 10-18-2012, 08:36 AM Thread Starter
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How to change thermostat?

Hello all.
Not that new to the forums (I've been reading a LOOOOOTTT) and I'm not new to mechanical endeavors at all. But I just bought an 06 6.0L F350, and don't know much about it other than what I've been reading and educating myself on.

As far as a walkthrough or some kind of instruction/direction as to changing the thermostat, I can't seem to find any.

Can someone help me out with this?
Where is it?
How to replace it?
How much coolant to drain, and from where?

Thanks!
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post #2 of 20 Old 10-18-2012, 08:39 AM Thread Starter
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Just to give a few details on this job as well.
06 F350
260,000 KM on the truck.
Deltas were within about 5, never more than 7 degrees until recently.
Seems that the thermostat is stuck open. On a 20 minute drive on the highway it wouldn't get up to 190 degrees.
Sat mostly around 176 ~ 180.

Not sure if any EGR delete was done.
It has orange coolant in it, but not sure if it's regular orange or some CAT EC-1 type stuff. Any way to test?

Figured that first things first, I'm going to put in a coolant filter.
I just received my IPR high flow coolant filter, that I want to run on the truck for several thousand KM's if I can to filter out as much crap as I can, then I plan to do a coolant flush, as well as an EGR delete and I'm thinking the remote oil cooler set up. All IPR gear.

So when I do the Thermostat, I plan to install the Coolant filter as well.

Thanks everyone!
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post #3 of 20 Old 10-18-2012, 09:05 AM
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I put a CLEAN 5 gallon bucket under driver's side of radiator and drained there. I xferred that to a CLEAN 1 gallon jug to refill the system.

The Motorcraft thermostat came with the housing. I can't remember if I broke the fuel lines loose for more access or not. I think I undid the EBP thingy for access puposes though. At any rate, there are only 2 bolts holding it in. A long extension, the proper metric socket, done. I also didn't remove hose until I had housing out for more control.

The coolant filter was pretty straight forward, too. The Sinister directions were easy to follow.

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post #4 of 20 Old 10-18-2012, 09:13 AM
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Ford and all aftermarket Tstats come with the housing.

Place a 5 gallon pail under radiator.

Drain the coolant.

Pull upper radiator hose.

On back side of upper hose you'll see the tstat housing.

IIRC I also pulled the air intake hose out of the way to get some room and used a long extension with a wobble to get at the housing bolts

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post #5 of 20 Old 10-18-2012, 09:13 AM
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Since you have an 06, you will have less to do.

changing the coolant thermostat - Ford Truck Enthusiasts Forums

And, before you bloody your knuckles getting the air filter out the hard way, try this instead (just gives a little more room, but not really needed to do on your year):

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post #6 of 20 Old 10-19-2012, 05:01 AM Thread Starter
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Thanks for all the help folks.
One more question. Where do I refill the coolant and is there a burping procedure?

Thanks again!
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post #7 of 20 Old 12-12-2012, 11:47 AM
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I really wish the Search function was this easy to use on my VW forum....

06 Lariat F350
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post #8 of 20 Old 12-12-2012, 02:37 PM
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Quote:
Originally Posted by wikdslo View Post
Thanks for all the help folks.
One more question. Where do I refill the coolant and is there a burping procedure?

Thanks again!
.............

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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post #9 of 20 Old 12-12-2012, 03:16 PM
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It's that black and "clear" plastic container bolted to the firewall just behind the air cleaner assembly.


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post #10 of 20 Old 12-12-2012, 03:19 PM
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Quote:
Originally Posted by Boudah View Post
I really wish the Search function was this easy to use on my VW forum....
You have a vw...............? Hehehe......













Jk............

Sent from my phone that somebody didn't help me get.

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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