Hi all. After browsing this forum and doing every researchable thing possible, i'm still having problems with my truck. My overflow is still filling up and bubbling. Truck is a 99 dodge ram 1500. Engine is a 5.9 magnum. The following is what and when it was replaced.
Heads and gaskets Oct 2010
Radiator, rad cap, T stat and heater core January 2012
Water pump, upper and lower rad hoses February 2012.

I am at my wits end. I've even bled the system for air but the coolant is low afer driving. There are no apparent coolant leaks or oil leaks for that matter any where on the truck.

Please help as my boyfriend is ready to shoot my truck. Thanks much.

 

Does the fan come on after you run the car for while?
Did you test the t-stat to make sure it opens before installing it?
You may also want to look at the timing cover for a coolant leak. Removing the water pump can disturb the gasket and cause a leak sometimes.
Another problem besides the head gasket (because it was already replaced) is a cracked engine block. Check the engine compression.

 

If you are blowing coolant out the radiator..... either the head gasket job didn't go quite as planned, the heads are bad, or..... cracks in the cylinder walls.

Do a compression test.

 

Still no leaks located. Will do a compression check this weekend. Thanks