Looks like oil in my radiator overflow... | Ford Explorer Forums

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Looks like oil in my radiator overflow...

ExploderBlues

Member
Joined
October 27, 2002
Messages
14
Reaction score
0
City, State
Cathedral City, CA
Year, Model & Trim Level
1991 XLT
What's up, bad rings? blown head gasket?
 



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Yep sounds like a head gasket to me. Get it fixed ASAP!! My last motor, I ignored it and ended up warping one of the heads. Not good.
 






Perhaps we should ask if it is pinkish

It is either engine oil or transmission oil if pink or red from the transmission cooler in the radiator. If it is the transmission, catch it early and you can get by with only a transmission flush and a new radiator.
 






Thanks guys, could this also cause some pinging I have, in OD, mostly, and also could it cause any oil in my air intake tube going to the Throttle Body assembly?
Thanks again
 






More than likely the pinging caused the blown head gasket not the other way around. Pinging is detonation and detonation breaks parts, you're lucky it's only a headgasket. Pull the plugs and check for water/oil on them, usually only one side will go bad but I'd replace both to be on the safe side. While the heads are of clean the combustion chambers and the piston top to get rid of any carbon deposits since that's what most likeky caused the detonation in the first place.
 






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