Good Super Bowl Sunday all - I have a dilemma and not sure where to turn. My 2000 Dakota Sport 2.5L 5 speed is discharging an ample amount of coolant from the overflow tube from the overflow reservoir. Otherwise the truck runs fine. Idle is good, oil pressure is good, it heats as good as most 2000 Dakotas.
Last summer I replaced the upper radiator hose and cap, back-flushed the heater, installed a new thermostat. It's been running like a champ. I ran the on-board diagnostics (on-off-on-off-on) and returned with no code. The upper radiator hose gets hot so I assume the thermostat is working. The fan did not come on, but then, it's 20 degrees outside. I could take it for a drive but roads are snow-packed and icy.
One oddity last week - I backed over a large branch in the driveway leaving for work. This leaking began the next day. Circumstance? I'd like to think so, because the dripping is coming from the top side.
Any ideas, anybody? I drive 25 miles to work in the snow at 6:30am and really don't want to be breaking down!
Thanks!

 

If it is from the overflow tube/tank it must be the rad cap has craped out even though you say its new.


Is it a stant cap and what psi does it open up

 

I was thinking it may be the pressure cap.
I'm not even going to check it, I'll just go get a new one.
Thanks!
Go Seahawks!