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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Bad head gasket?

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Old Dec 15, 2015 | 01:17 PM
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Bad head gasket?

My truck was running a little rough today upon startup.

Stopped at a gas station and routinely checked the oil to find a rusty liquid all the way up the dipstick, and then a milky white color in the oil at the bottom. (just changed the oil about 5 days ago and there was no coolant in it at all)

How to tell if this is a head gasket going bad or coolant leaking into the timing cover, I did notice a small puddle of coolant siting behind the waterpump.

-Can't see white smoke in the exhaust, but I will check later to see if any comes out upon cold-starting.

-Also the engine is not overheating like a typical bad head-gasket, it's actually not getting up to temperature at all (changed thermostat last month), or the sending unit is bad.

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Old Dec 15, 2015 | 01:26 PM
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A leak-down test will answer a lot of questions....
 
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