Cars & Vehicles
Head Gaskets and Valve Covers
Antifreeze and Engine Coolant
Ford Expedition XLT

My truck blows lots of steam out the tailpipe but after awhile stops i do have a brown color in the antifreeze overflow tank but not in the radiator your truck does not get up to high

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February 24, 2007 3:30PM

Head gasket. Just starting to go and as the motor warms up it expands and seals the gap. Oil is getting into the coolant and since oil floats on water it goes to the overflow. Lack of speed, one or two plugs are fouled or you are loosing enough compression on 1 or 2 cylindars.