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Neal, Mechanic
Category: Car
Satisfied Customers: 8351
Experience:  Auto repair pro and Mechanic on multiple makes.
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my hummer hs radiator..transmission oil but not from the two pipes

Resolved Question:

hi sirs, my Hummer hs radiator is leaking transmission oil but not from the two pipes. it leak from the side of the radiator
Submitted: 5 years ago.
Category: Car
Expert:  Neal replied 5 years ago.

I'm Neal and I am here to assist you. Only accept when you are happy with my assistance. If I can't help I will open your Question to other experts.


You need to replace the radiator right away, there is a cooler built into the radiator and if coolant gets into the transmission fluid it will ruin the transmission. I would not drive it at all and take a chance.

Customer: replied 5 years ago.
yes but their is no mixture between coolant and transmissin oil. only transmission oil is leaking. their is still I have to chnage the radiator instead repair it
Expert:  Neal replied 5 years ago.

The problem is that those radiator are not really repairable like older ones and I would hate to see you try and repair it and take a chance on ruining the transmission.


I have not seen anyone successflly make a permanent repair on those.

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