Degass Bottle Venting
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Joined: May 2004
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Degass Bottle Venting
Hi all,
I have a 2004 F250 PSD 6.0L diesel AFE intake 4" banks exhaust. The truck is great.
I am running a SCT tuner on high performance, but am very easy on the truck, around town the truck has no problems. When I am towing my 6k pound boat, I did not take the performance tune out of it (forgot) but monitored the EGT and coolant temp. very carefully on my digital gauges. The EGT never got above 1050 and the coolant temp would rise to 215 once in a while (enough to tell me to check gauges) on long long pulls up hills in 110 degree weather.
I know I should have taken the tune out, but like I said I forgot. Anyway, I lost some coolant (at least 1/2 gallon) which I replaced with bottled water I had in the truck once I got to the lake. The minimum level is and has been my max level as I have read on this site numerous times.
I suspect my degas bottle cap is bad and I think the coolant to water ratio might be a bit lean since I have replaced overflow with straight water twice already and probably lowered the boiling point of the coolant mixture.
What do you guys think? Any thoughts?
I am going to buy a new cap tomorrow and FORD coolant, remove some of the water mix and add straight coolant to compensate for the extra water I may have added. Believe me from now on I am going to go into the "tow safe" mode and see what happens.
I have a 2004 F250 PSD 6.0L diesel AFE intake 4" banks exhaust. The truck is great.
I am running a SCT tuner on high performance, but am very easy on the truck, around town the truck has no problems. When I am towing my 6k pound boat, I did not take the performance tune out of it (forgot) but monitored the EGT and coolant temp. very carefully on my digital gauges. The EGT never got above 1050 and the coolant temp would rise to 215 once in a while (enough to tell me to check gauges) on long long pulls up hills in 110 degree weather.
I know I should have taken the tune out, but like I said I forgot. Anyway, I lost some coolant (at least 1/2 gallon) which I replaced with bottled water I had in the truck once I got to the lake. The minimum level is and has been my max level as I have read on this site numerous times.
I suspect my degas bottle cap is bad and I think the coolant to water ratio might be a bit lean since I have replaced overflow with straight water twice already and probably lowered the boiling point of the coolant mixture.
What do you guys think? Any thoughts?
I am going to buy a new cap tomorrow and FORD coolant, remove some of the water mix and add straight coolant to compensate for the extra water I may have added. Believe me from now on I am going to go into the "tow safe" mode and see what happens.
Resident smarta$$
Joined: Aug 2006
Posts: 4,929
Likes: 9
From: Oaks,PA
I switched the degas cap with the one from my company truck (w/ a 5.4) after my cap puked coolant just for *****$ and giggles after everyone told me my head gaskets or EGR cooler were prob. the culprit. Guess what- no more puking, the caps do go bad from what I've read, and SO FAR that seems to be the case with mine. However I do NOT run any kind of tuner, but I can't say whether the PO did or didn't do. Good luck!
Senior User
Joined: Apr 2007
Posts: 304
Likes: 0
From: Woodbine, Maryland
all trucks are different. The coolent levels will change when you run a tuner and once the system normalize's it should be fine. Mine pucked a bit when i started using a sct but has since stopped and my coolant level is fine.
If you have to much in the system that will cause it to puke as well. Mine allways sat on max but once i tuned it it went inbetween min and max and is fine now.
If you have to much in the system that will cause it to puke as well. Mine allways sat on max but once i tuned it it went inbetween min and max and is fine now.
