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02 gp gr8 3.8 leaking coolant around under throttle body side?

T

tom5170

New member
I have a leak and it's around where the throttle body is. It runs around the uim gasket on that side but I can't seem to figure of its tb gasket or uim gasket. Last time I saw the leak, I found a loose stud on the tb to uim on the bottom so I tightened it but stripped the stud so I just switched the studs around and put the bad one on top.

So I plan on going to jy and pulling some tb to uim studs and replacing the tb gasket.

I just replaced the uim and lim gaskets a year ago and I did the uim with all new plenum, and dorman upgraded egr pipe for uim. What could it possible be? Coolant is only coming from the tb side. I have no coolant in the oil.

Like I said the coolant leak is right around under the tb and I can't tell if it's uim, the uim gasket, or tb gasket. I dread pulling uim in this cold michigan weather
 


It could be the block off plate gasket leaking on the end of the intake a pressure tester from auto zone that's basic a free rental could help. Test it stone cold first for any leaks when things expand some times they stop leaking. As a loose hose clamp can.
 
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