Coolant system o-ring issues
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Freshman User
Joined: Nov 2013
Posts: 26
Likes: 1
From: Jennings LA
Coolant system o-ring issues
I have a 2008 F450, that I have been having issues with the o-rings blowing. About 1 1/2 years ago while pulling our camper I was filling up and found coolant under the truck not a lot. we pulled into a RV park and I wanted to check it and the tank was just about empty, the next day was sunday so no way to get it looked at so I bought so filled it up and made it to our destination a few days later I got it to the ford dealer ship they said its the new hose system. They replaced the o-ring about 6 months later the same issue this time I was told there was a new hose with two o-rings which will solve the problem. got it changed out. well last month I say a drip under the truck again this time its the lower hose system what is going on that I am having so many darn issues with my coolant system. I havent had any issues until just over a year ago now they wont stop. and its a damn shame it cost $176 to replace on o-ring.
Hotshot
Joined: Jul 2013
Posts: 14,291
Likes: 2,197
1) there was an oring upgrade program which may be discribed in a TSB or service bulliten.
2) check your coolant with a hydrometer to make sure the correct water/coolant ration is in place
3) possibly replace your degas bottle pressure cap ...it is common to fail
4) if this really becomes an unresolved ongoing problem, switch to waterless coolant which doesnt boil and results in operating at less pressure.
2) check your coolant with a hydrometer to make sure the correct water/coolant ration is in place
3) possibly replace your degas bottle pressure cap ...it is common to fail
4) if this really becomes an unresolved ongoing problem, switch to waterless coolant which doesnt boil and results in operating at less pressure.
Fleet Mechanic
Joined: Dec 2015
Posts: 1,521
Likes: 412
From: Washington Coast
99% of the time it's an installation error. O'Rings should be lubed for installation. You can go and spend the money for O'Ring lube or do what is in several Aviation (General Electric) technical manuals that I've been using for 40 years, Vaseline, or the generic term is Petrolatum. Now if you want the Lycoming specification it's Crisco (yes the pure vegetable shortning). You can also use a little coolant or motor oil. It's just like any other seal and must be lubricated for initial installation.
Most mechanics are paid from the flat rate manual (piece work) so spending the 5 minutes to walk to get the lube does cost them time and all that adds up. The more pieces they change in the day the more money they make and most trouble shooting times are exceptionally short so there it cost to do trouble shooting. Now the dealership or garage will charge by the 1/4, 1/2, or whole hours but mechanics don't get paid for all that time. When I was doing it we only got 15 minutes for troubleshooting so any more was on us.
Most mechanics are paid from the flat rate manual (piece work) so spending the 5 minutes to walk to get the lube does cost them time and all that adds up. The more pieces they change in the day the more money they make and most trouble shooting times are exceptionally short so there it cost to do trouble shooting. Now the dealership or garage will charge by the 1/4, 1/2, or whole hours but mechanics don't get paid for all that time. When I was doing it we only got 15 minutes for troubleshooting so any more was on us.
5th Wheeling
Joined: Sep 2016
Posts: 37
Likes: 3
Super Duty Bob
I agree you seriously have to watch every move your mechanic makes these days. How many times have you guys gone for an oil change, and they never refill the windshield wash, or check tire pressure? Yet they say they did. They all suck! Especially if you go to the Dealer shop!
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Jesser02EX
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Jul 6, 2014 03:33 PM
