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edhtrd71 · 10-09-2017, 11:31 PM

Sorry, for giving poor information. The 99 Tahoe can mix the coolant and oil with failed intake gaskets. I was thinking 5.3l. I still don't think that is your problem though.

10-09-2017, 11:31 PM	#4
edhtrd71 Registered User Join Date: Jan 2011 Location: Edinburg, Texas. Posts: 194	Re: 99 tahoe Cant figure out the problem Sorry, for giving poor information. The 99 Tahoe can mix the coolant and oil with failed intake gaskets. I was thinking 5.3l. I still don't think that is your problem though.