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post #1 of 20 Old 12-08-2012, 02:43 PM Thread Starter
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Coolant level

My coolant level has been staying right at or under the "min" mark on the degas bottle. I noticed that after the truck has been running most of the day the coolant level goes down between 1 to 1 1/2 inches below the min mark on the bottle. Once I shut it down and it cools down the level comes back up. Is this normal?
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post #2 of 20 Old 12-08-2012, 02:55 PM
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Originally Posted by 03superstroke View Post
My coolant level has been staying right at or under the "min" mark on the degas bottle. I noticed that after the truck has been running most of the day the coolant level goes down between 1 to 1 1/2 inches below the min mark on the bottle. Once I shut it down and it cools down the level comes back up. Is this normal?
yes.. fill it up to the max mark.. when your engine is cold fill it to the max mark... but yes as it cools and heats up it changes height

2007 Ford F250 Lariat 6.0 Powerstroke

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post #3 of 20 Old 12-08-2012, 03:23 PM
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Originally Posted by kendallcschm View Post
yes.. fill it up to the max mark.. when your engine is cold fill it to the max mark... but yes as it cools and heats up it changes height
Just an FYI, the "new" full mark according to Ford is 1/4" below the min mark.

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post #4 of 20 Old 12-08-2012, 03:40 PM
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Originally Posted by dhanna6powerstroke View Post
Just an FYI, the "new" full mark according to Ford is 1/4" below the min mark.
This^^^, just make sure your not loosing any.

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 #5 of 20 Old 12-11-2012, 02:56 AM
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Quote:
Originally Posted by dhanna6powerstroke View Post
Just an FYI, the "new" full mark according to Ford is 1/4" below the min mark.
last time i had my degas bottle out, i overfilled it upon reinstalling, and it caused the cap to leak. i didnt know about the new level until reading it on here. opened the hood and saw coolant trails, flipped out thinking it was headgaskets, only to learn i had overfilled the bottle. talk about sweet relief. i keep my, like stated, about a 1/4" below min. it will fluctuate between the minimum mark and 1/4" below, depending on engine temp. this is normal. zero "puking" now.

-Tyler- -Navistar Technician-
2004 F250 CCSB FX4 6.0 - XDP EGR delete, BPD Oil Cooler Relocation, SCT Livewire TS, 315/75/16 Falken Wildpeak A/T's, Rough Country 4in, stock DP with 4in straight pipe.
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post #6 of 20 Old 12-11-2012, 03:21 AM
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Quote:
Originally Posted by Int.Tech04 View Post
last time i had my degas bottle out, i overfilled it upon reinstalling, and it caused the cap to leak. i didnt know about the new level until reading it on here. opened the hood and saw coolant trails, flipped out thinking it was headgaskets, only to learn i had overfilled the bottle. talk about sweet relief. i keep my, like stated, about a 1/4" below min. it will fluctuate between the minimum mark and 1/4" below, depending on engine temp. this is normal. zero "puking" now.
wow.. i didn't know that! I filed it all the way last time

2007 Ford F250 Lariat 6.0 Powerstroke

mods:
Banks Ram air
Sinister Coolant Filter
Swamps 48V FICM with PHP Atlas 40
B&W turnover ball hitch
EGR Delete
Diesel Site Intercooler Boots
SCT livewire TS 5015 w/IDP custom tunes
Agressive street, Tow W/jake brake, Economy

Other rides:
2010 Ford Explorer 4.6 24V V8
1999 Ford Mustang Cobra 4.6 32V V8
Mods:
JLT True CAI
Smoked Heads/tails

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post #7 of 20 Old 12-12-2012, 06:13 AM
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ya min is the new full

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post #8 of 20 Old 12-12-2012, 04:10 PM
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I have to disagree that it's normal.
When I had leaking head gaskets, the level would drop when hot due to being "over pressurized." When cool it would return to it's original level.
After my head gasket fix, the level RISES when it's hot and settles to the original level when it cools down.

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post #9 of 20 Old 12-12-2012, 04:45 PM
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^ that is correct.. This is what mine does.. Heat expands

Late 04 f350 lariat.

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post #10 of 20 Old 01-20-2013, 08:47 AM
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when heated mine expands and cool its back to normal only fill when cool to get the rite level.
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