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-   -   Freeze plugs. (https://www.jk-forum.com/forums/stock-jk-tech-12/freeze-plugs-270907/)

redrocksteve 04-08-2013 08:18 AM

Freeze plugs.
 
Anyone ever have one go? I have one on the back of my block above the bell housing going.

redrocksteve 04-08-2013 08:44 AM

I think this is were the fluid is coming from I've checked everywhere, heads, intake, heater core and all lines. I get a few drips coming off the bottom of my bell housing. I thought it was tranny oil but then I tasted it. Its definitely coolant. Temp gauge stays in the middle, never overheated.

JK_Crawler 04-08-2013 11:08 AM


Originally Posted by redrocksteve (Post 3509120)
I think this is were the fluid is coming from I've checked everywhere, heads, intake, heater core and all lines. I get a few drips coming off the bottom of my bell housing. I thought it was tranny oil but then I tasted it. Its definitely coolant. Temp gauge stays in the middle, never overheated.

just because its still at operating tempreature doesnt mean anything other then the cooling system has not leaked out enough fluid to cause the truck to run hot, buy a cooling system pressure tester and pressurize the system to about 18-20psi and check for leaks. this is the best option if you plan to repair it yourself, that way your not guessing where its coming from. you can also drive the truck for abot 20-30min and then inspect for leaks, the cooling system pressurize itself at this point exposing the leak. remember its best to check when hot since metal expands when heated and contracts when cooled, basicly the leak seals itself when the vehicle cools down so its probably best to check it after an extended drive if you dnt want to spend the coin on a pressure tester. hope this help you track down the problem:thumbsup:

redrocksteve 04-08-2013 04:00 PM


Originally Posted by JK_Crawler (Post 3509281)

just because its still at operating tempreature doesnt mean anything other then the cooling system has not leaked out enough fluid to cause the truck to run hot, buy a cooling system pressure tester and pressurize the system to about 18-20psi and check for leaks. this is the best option if you plan to repair it yourself, that way your not guessing where its coming from. you can also drive the truck for abot 20-30min and then inspect for leaks, the cooling system pressurize itself at this point exposing the leak. remember its best to check when hot since metal expands when heated and contracts when cooled, basicly the leak seals itself when the vehicle cools down so its probably best to check it after an extended drive if you dnt want to spend the coin on a pressure tester. hope this help you track down the problem:thumbsup:

Thanks. I'm almost positive its coming from a freeze plug in the block they're behind the bell housing I think, and the coolant is dripping from the weep hole where the housing connects to the tranny. I might have a friend with a pressure tester have to call around and ask. Thanks for your input.

redrocksteve 04-22-2013 05:42 AM

Not a freeze plug I was wrong .... it was the rear of the intake manifold gasket. Waiting to get it back.

tmlockl2 09-08-2018 11:26 AM

I know this thread is dead probably, but how much coolant was laking? I'm having the same issue with coolant coming off the back of the block and dripping from where engine and transmission mate just about. Its definitely coolant and when I put some pressure on the radiator it comes out faster. Are there freeze plugs on the motor and what is the location of them? if not I guess its intake gasket like you said. thanks

DBCOOPER 10-09-2022 03:49 AM

Photos speak best ! late but very clear what is going on.
or here (I have all the photos now) same problems./

https://cimg1.ibsrv.net/gimg/www.jk-...3f634ef162.jpghttps://cimg9.ibsrv.net/gimg/www.jk-...81d5f9c6c3.jpg


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