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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 03-03-2007
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I am: Brant Anderson
Join Date: May 2006
Location: Altoona, IA
Vehicle: 99 Ford Ranger XLT
Posts: 91
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Coolent Type??

Just got home and noticed the radiator was bone dry. Don't know where it went.

I bought the truck used so not sure of the type. Can the old green and the newer orange be mixed?

I'm hoping that this isn't a head gasket as I hear it's a common problem for the 4.0's. I have 95,000 miles. Is there a normal mileage when it goes out?
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Old 03-03-2007
I am: John Cress
Join Date: Sep 2005
Location: Franklin Indiana
Vehicle: 05 Ranger Edger supcab 4.0
Posts: 87
Total Props: 0
The orange coolant is dexcool which is for general motors vehicles. Ford has a gold extended life coolant or a basic EG green coolant. check the resevoir to see the color or if its dry look on the bottom of the radiator for the drain and turn it till a little comes out to see what comes out. When you find out what is in the system top of the level and have a pressure test done to find your leak or leaks, I do this regularly at work on many vehicles. It could anything from resevoir leaking to head gasket or the seams on radiator.
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