Question about 2004 Chevrolet Tahoe

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Losing coolant, no large puddles in garage when parked. Having to fill up reserve about once every couple of weeks. Taken it so several places and the pump is fine, they can't find a leak at all. It has to be going somewhere. The last place changed the oil and said the oil was thick like molasses. Would coolant do that?

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There is a dye that you can put in it. then drive it for a week then have it checked. good luck

Posted on May 09, 2009

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If engine oil was thick , somewhat " Russian Dressing " like, I would look for coolant mixing with engine oil. Causes could include leaking internally head gaskets, cracked heads, intake manifold gaskets, etc. Initially and unfortunately the intake manifold, and cylinder heads will have to come off. Then a complete visible inspection of ALL GASKETS will be required as well as CYLINDER HEAD AND BLOCK for cracks. After repairs are completed don't forget to change the oil and filter again. Hope this helps

Posted on May 09, 2009

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Posted on Jan 02, 2017

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