My van is losing coolant and I believe it is going into the motor oil. I do not see any outside leak. I was already told that it is going into the oil.
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2002 GMC Safari Question: lower Intake manifold gasket replacement
Don't drive the van with contaminated oil. The coolant will destroy the bearings! We should pressure test the cooling system first but I would also want to make sure your headgaskets haven't failed. Vans are difficult to work on because of the location of the engine. Good luck and happy holidays.