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    99 yukon intermintent overheating and cold air

    Ok, I might have found what is all going on in a nutshell. This morning was my first chance to check over things that might be problems and this is what I found and my thoughts on it: For the water temp issue - There was no coolant in the overflow tank and the radiator was down about a...
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    99 yukon intermintent overheating and cold air

    Yeah, I do need to do some of the simple service and tune up items that will help narrow down the problem spot. It seems to run strong otherwise, so I have at least some hope that I got a decent rig. I will probably clean out the mass air flow sensor and egr valve. What's best for cleaning...
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    99 yukon intermintent overheating and cold air

    Thanks for your response. One other question if I can, truck had check engine light when I was checking it out. Hesitated buying until they could clear it up. I was there when they put a scanner on it and it showed #3 cylinder misfire, also the icons for oxygen sensor and egr valve where...
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    99 yukon intermintent overheating and cold air

    I just purchased truck, noticed water temp guage went up to a hair below red mark within 5min down the road. Pulled over and put in park and temp came down(to about half of guage). Then drove 15 miles and temp went up and down (up to top of guage and down to about 180 ?? I'm guessing) The...
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