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Strange Location For Coolant Leak?

251 Views 3 Replies 3 Participants Last post by  drscott
2002 Explorer 4.0
I can understand leaking out of the top groove of thermostat housing where it separates from the rest of the housing, but the location where it's leaking is solid piece.
Am I wrong?
Would I need to replace just O-Ring? Or entire thermostat housing?

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1 - 4 of 4 Posts
It's the plastic housing. I had the same problem on my 4.0 ranger. Very common. There are several different ones. Not fun to replace. Good luck.
1 - 4 of 4 Posts