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OnlineHelp, Mechanic
Category: Car
Satisfied Customers: 3423
Experience:  Mechanic
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2001 monte carlo: I have milky looking stuff in my radiator..slight

Customer Question

I have milky looking stuff in my radiator. Its a 2001 monte carlo just started yesterday and its making a slight noise
Submitted: 7 years ago.
Category: Car
Expert:  OnlineHelp replied 7 years ago.
Hello and thank you for choosing Just Answer.

I hate to tell you this, but that is very bad new. Typically that is caused by a bad head gasket. The milky looking stuff is coolant mixing with oil, causing it to look like that. The noise could be due to low oil or thin oil.

I would suggest that you have it check out as soon as possible.

Check your engine oil and transmission fluid.
Customer: replied 7 years ago.
So if i change the head gasket and get an oil change that will solve my problem
Expert:  OnlineHelp replied 7 years ago.
Yes, you will need to have the head gasket check end replaced.

Also make sure to check your transmission fluid. The transmission fluid is cooled by the radiator, it could be a broken transmission cooler line in the radiator that's causing this. Pull out the oil dipstick and check the oil if it's high/low also check if it has coolant on it (it will be very glossy if it does) then do the same on the transmission fluid.

If you notice that the problem is with the oil, then it's your head gasket that has gone out.