Spraying coolant. What did I do?
#1
Thread Starter
CF Veteran
Joined: Oct 2009
Posts: 2,867
Likes: 15
From: Fauquier County, Virginia
Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
Spraying coolant. What did I do?
Alrite guys, so I just finished puttin on the second gasket for my t-stat housing last night. I started her up a few minutes ago, and she started spraying coolant from under the housing towards the air-box. What's going on here? I don't think I cracked the housing or anything. Is there a certain way you're supposed to put the thermostat and housing back together? Is it possible the t-stat shifted when I was putting it back on and it caused it to crack or make a poor seal? I'm at a loss and low on funds. This is really starting to me off.
#2
CF Veteran
Joined: Apr 2009
Posts: 18,786
Likes: 13
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
Take it back apart and clean up the sealing surfaces nice and dry. install thermostat with a little bit of form a gasket or something similar thats tacky enough to hold it in place.
Use permatex grey rtv on the new gasket just a little. and snug the bolts and let it dry for a hour.
Use permatex grey rtv on the new gasket just a little. and snug the bolts and let it dry for a hour.
#6
Member
Joined: May 2010
Posts: 155
Likes: 0
From: Orono, Ontario
Year: 97
Model: Cherokee
Engine: 4.0L
I had the same issue last week. I went through 3 aftermarket gaskets. I had to go into the city one day and drove past the dealership. On a whim, i went in there to get one of there gaskets (cuz mine was still leaking). Anyways, long story short, the mopar gasket has a red silicone bead right in the gasket. Put that on, and no more leaks.
Id give that a shot if your housing is not cracked/warped, the thermostat is in straight, and all your surfaces are clean.
Sometimes factory parts are the right solution.
Id give that a shot if your housing is not cracked/warped, the thermostat is in straight, and all your surfaces are clean.
Sometimes factory parts are the right solution.
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