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I guess before you tear it down, maybe do a leak down test to be sure it truly is a head gasket. I have a compression tester set up if you'd like to borrow it. Also you could try one of the chemical testers that can tell if combustion byproducts are in the cooling system.
Oh, don't put an electric pusher fan in, blocks more airflow then it adds at highway speeds.
Pusher could block airflow for even a short amount of time. I convinced Scott to cut them off this year.
I told Scott to take them off for years. I'm glad you were able too.
How did you test To reach that result? The reason I ask is because mine tested ok too but I kept having coolant blowouts that after 6-7 blowouts and overheating issues when I took it apart the end result was a small gap in the gasket that would only leak through when under great pressure for extended amounts of time. Hopefully it's something waayyy easier and cheaper but I would say don't rule this out yet..
Because Jeep.
I used one of the 2 chamber block test kits that tests for exhaust gas in the air in the radiator. Basically it's a turkey baster you hook up to the rad neck and suck air through a chemical. If it changes colors you've got exhaust gas in the cooling system. Colors didn't change.
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Your jeep down from moab too?
Im tracking down some wobble wobble wobble
Coolant system holds pressure just fine. Only thing I can think of at this point is some type of temperature dependent leak. I.E. it gets hot enough that air starts getting pulled in but can't replicate it in the shop.
ever considered a cracked head?
i've had a 5.2 with one. would run fine till it got hot then over the period of about 30 min it would pressurize the coolant system.
The suspense is killing me!...
Because Jeep.
Amazon needs to work on their packaging!
Well, my UPS guy is about to hate me. Local engine shop wanted $170 to clean and test both heads, which is certainly fair. But given the probability of it being the heads, and the price I found for a reman'd set I'm just going to get the remans: http://www.ebay.com/itm/272218404105...%3AMEBIDX%3AIT
Also going to order new head bolts, all the gaskets, water pump, radiator, hoses, etc etc etc.
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