Why is Oil has mixed with coolant in radiator ?

What is your question?

Mechanic had put upper and lower intake and still ran hot then put rebuilt water pump then sensor then thermostat not helpef

What makes this problem better or worse?

Replaced coolant sensor

How long has your 2003 Buick Century had this problem?

A month

Visitor

Dec 11, 2018

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What are the best Buick repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Buick Century. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

Why is Oil has mixed with coolant in radiator ?

What is your question?

Mechanic had put upper and lower intake and still ran hot then put rebuilt water pump then sensor then thermostat not helpef

What makes this problem better or worse?

Replaced coolant sensor

How long has your 2003 Buick Century had this problem?

A month

Visitor

Dec 11, 2018

1 Reply

Popular Answer

pushrodon Dec 11, 2018

The transmission fluid cooler is located 'inside' the radiator - these coolers rupture occasionally sending transmission fluid into the engine coolant.. This is most like the problem here as engine oil has no path into the cooling system..

pushrodon Dec 11, 2018

Transmission fluid should be closely inspected for signs of engine coolant contamination.

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Popular Answer

What are the best Buick repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Buick Century. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.