2004 GMC Yukon Coolant

2004 GMC YUKON
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YUKONXL2010
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2004 GMC Yukon V8 82,000 miles

My 2004 GMC Yukon Xl seems to be using more coolant than usual. I have looked for leaks but there are none. Truck hasn't over heated and am afraid of driving it. What do you advise I do about this problem?
Apr 7, 2010 at 11:46 AM
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DOCFIXIT
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Maybe a headgasket leak oil look normal? any misss on morning start? smoke from exhaust?
Apr 8, 2010 at 3:11 PM
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YUKONXL2010
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Oil looks normal. No gunks or change in color. No miss on morning start. Starts perfectly fine in the mornings. No smoke from exhaust either. The truck is driving good. Its not making any kind of weird noises or knocking. Heard from a couple of people that it might be the radiator pressure cap. Do you suggest I change the cap?? but if its the radiator cap wouldnt there be an overflow/spilling of the coolant?
Apr 8, 2010 at 3:50 PM
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DOCFIXIT
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If cap is original would be a good idea to change. If cap can,t hold 15 psi coolant will boil and level will go down.
Apr 9, 2010 at 8:21 AM
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