Radiator was busted..no overheating that I know of. It does it in warm weather too. Heater works fine and I'll go check the coolant now..just a spare vehicle used to pull my boat, trailer, etc.. just bought it in august. I don't drive it very much. I'm taking it tomorrow to the shop for some test.
99 GMC Yukon..i recently put a new radiator on. Since then I have heavy exhaust steam only after it idles for three or four minutes and continues to steam while idling..once I start driving it, it clears after a half mile or so down the road..continues to run like a top with no signs of steam or...
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