coolant system

Recently bought a 2008 explorer 4.0l v6. Seems to keep getting air in the coolant system. Heat comes and goes inside the cab. Replaced vacuum lines to heater core valve, replaced heater core valve. Replaced radiator cap. Going to replace thermostat and housing tomorrow. Any other advice on what...

I am in the process of replacing the original radiator on my 98 Exploder 5.0L. Figured I'd go ahead and replace water pump while I was in there since there was tons of rust and grit in the coolant system. (flushed system with prestone kit before removing busted radiator) While removing hoses...

I have a 99 Explorer SOHC 4.0L and I just did the unbelievably fun job of replacing head gaskets, timing cassettes, and lining up torque converter to flex plate. And now it has come time to put back together someone else's dismantling job mind you of the heater and cooling lines, so long story...

Hi folk, Looking for a little help tracking down a coolant leak on my 1998 ford explorer 4.0L. The coolant system seems straight forward on the car but just can't track it down. It seems that the leak is coming from somewhere in the area of the starter maybe just above the drivers side engine...

I am new to the forum. I have an 4 Liter Explorer 4x4 SOHC XLT 1998. Over the holidays I replaced the water pump and theromostat and a few dodgy hoses around them because the water pump was squeaking on start up and there was a leak on top of the thermostat housing that turned out to be due...

Sometimes, make myself weep. Finally my heater control valve disintegrated. Broke it a few months ago and jbwelded it together to get o9ut of walking to the store again during a radiator replace/flush. I shoulda just replaced it, but I thought it would be expensive. It is not. Two...

Hello All, I use this site constantly and often, but I was a little dismayed that I couldn't find any comprehensive coolant system diagnostics. (hopefully I can help)... I have a 1993 (first gen) Ford Explorer- 4.0L 6 cylinder - 4WD- Eddie Bauer edition Anyways, heres my problem - About...