coolant loss

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Jul 18, 2015 | 10:42 PM

rvf62

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5th Wheeling

Joined: Dec 2013

Posts: 25

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From: lucedale ms

coolant loss

my 99 f250 ran hot while towing my travel trailer when the fan clutch gave up. ever since iv been noticing coolant loss and pressure in the day tank.ive changed the water pump,radiator. day tank and cap plus the thermostat.please help

Jul 19, 2015 | 06:18 AM

bigredtruckmi

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Joined: Jan 2005

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From: Huntington Indiana

Have you done a system pressure test? Do you smell antifreeze? Have you done a oil test for antifreeze ?

Jul 19, 2015 | 05:43 PM

rvf62

Thread Starter

5th Wheeling

Joined: Dec 2013

Posts: 25

Likes: 4

From: lucedale ms

not yet i have to locate the right tools. but check this out, i drained her and flushed her good and filled her back up. ran her hard down the road for 1/2 mile and back.had to add lil over 2 gal.which i could see blew out around the brand new cap .filled her back up and run her again the same way no loss this time.
did i read somewhere tha its best to use only motorcraft t-stat ? this is my second one from o---ys..thanks for any advice

Jul 19, 2015 | 05:44 PM

rvf62

Thread Starter

5th Wheeling

Joined: Dec 2013

Posts: 25

Likes: 4

From: lucedale ms

oh forgot to answer u . no antifreeze smell and no oil in coolant

Jul 19, 2015 | 05:57 PM

rvf62

Thread Starter

5th Wheeling

Joined: Dec 2013

Posts: 25

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From: lucedale ms

i just went out and pulled the codes as i cleared every thing before the first run . i got a "p0603" and a"p1211" any ideas ?

Jul 19, 2015 | 06:21 PM

bigredtruckmi

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Joined: Jan 2005

Posts: 7,782

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From: Huntington Indiana

Do a search for those codes. And yes you should use motor craft t stat. Also when you drain system there are a lot of pockets which air stays in for awhile. I have the system power flushed on our 04 and have not had a problem. Yes it costs more but so far no radiator or other problems. Also do not mix different kinds of antifreeze as it doesn't like it and could cause problems down the road.