Coolant level
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Recovery Vehicle
Joined: Mar 2016
Posts: 856
Likes: 154
Coolant level
On my 04 I have a weird thing with the coolant level. It will go down way below the normal level about even with the nipple that goes to the TBH . If I fill it up it will get pushed out by pressure through the overflow onto the frame rail. The main hose does not get hard with pressure and its been doing this for the 2 years that I have had it. All my others run about 1 inch below the full line . Any ideas what the issue is?
Pro Wrench
Joined: Dec 2016
Posts: 1,603
Likes: 229
From: Fall City, WA
I have thoughts:
1. You have an air pocket in your heater core
2. T-stat is not opening and closing properly allowing back pressure
3. You have a clog in one of the hoses, possible heater core
1. You have an air pocket in your heater core
2. T-stat is not opening and closing properly allowing back pressure
3. You have a clog in one of the hoses, possible heater core
Three Wheeling
Joined: Jun 2017
Posts: 57
Likes: 6
From: Nebraska Territory
I’m battling a similar, if not the same issue. I bypassed the throttle body heater the other day thinking that would solve it but it still does the same thing as you mentioned. My disco doesn’t leave any drips on the ground and no visible signs of coolant leaking. Coolant level will drop to the same place every time I fill it up. Will be curious what you find out.
Pro Wrench
Joined: Nov 2015
Posts: 1,935
Likes: 189
From: Coastal Georgia
If I fill it up it will get pushed out by pressure through the overflow onto the frame rail.
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