Overheating, using oil and leaking coolant

2014 JEEP GRAND CHEROKEE
125,000 MILES • 3.6L • V6 • 4WD • AUTOMATIC
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DEB MIKUS
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I suspect engine oil in the radiator. A dark colored film appears to be floating on surface of radiator reservoir.
The oil dipstick looks normal-doesn't appear contaminated, don't see bubbles.
Closer inspection revels coolant leaks at bottom of radiator when under pressure-have not yet identified exact location.
Engine oil level has also been low lately, indicating oil loss. No blue smoke is seen and no burnt oil odor is evident.
What diagnostic steps and tests can be performed to determine if the engine has a possible blown head gasket or is this a oil cooler/radiator problem?
Mar 31, 2020 at 4:44 PM
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KASEKENNY
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There are a number of ways to determine if a head gasket is leaking but it does sound like it.

You will want to perform one of these tests and then perform a compression test to determine which bank.

Let me know if you have questions. I attached the process for the left head because that is the most common to fail.

https://www.2carpros.com/articles/head-gasket-blown-test

https://www.2carpros.com/articles/how-to-test-engine-compression
Mar 31, 2020 at 5:01 PM