Just replaced a bunch of gaskets and coolant system components on a Ford 4.0 OHV in my Ranger.
I think my standard bleeding proceedure is leaving air in the system because I keep getting a fluctuating temperature reading. Meanders towards the middle, then drops, then repeats.
Today I parked on an incline, and used a coolant funnel in the radiator and let the car idle, no bubbles appeared. Once warmed up, if I rev the engine and hold it there, coolant stays at its level. Once I release my foot off of the gas, I get a geyser of coolant as it comes back down to idle.
Another geyser when I shut it off (with the cap off).
I can't find any info on why it would geyser like that as it returns to idle. Most sites say to rev the engine to force air out. Or is this wrong?
I think my standard bleeding proceedure is leaving air in the system because I keep getting a fluctuating temperature reading. Meanders towards the middle, then drops, then repeats.
Today I parked on an incline, and used a coolant funnel in the radiator and let the car idle, no bubbles appeared. Once warmed up, if I rev the engine and hold it there, coolant stays at its level. Once I release my foot off of the gas, I get a geyser of coolant as it comes back down to idle.
Another geyser when I shut it off (with the cap off).
I can't find any info on why it would geyser like that as it returns to idle. Most sites say to rev the engine to force air out. Or is this wrong?