why is the coolant pump leaking from behind the pulley? That's the clutch right? also why is it leaking from the temp sensor? there's pink icing everywhere, I found the drip coming from behind the big round thingy
coolant thingy making a mess
Discussion in 'Freightliner Forum' started by shatteredsquare, Nov 2, 2020.
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Gasket leaking? Im not familiar but on my Freightliner a I finally located a constant coolant leak being a hairline crack on top of overflow tank.
Rideandrepair Thanks this. -
No clutch on a water pump. If its leaking out the weep hole your pump is worn out.
Dino soar, Rideandrepair, daf105paccar and 6 others Thank this. -
I say water pump also, coolant reservoir not leaking enough to make those spots behind pulley and belt.
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Get Blue Beacon to wash it off.
Then watch to see where it comes back from.
The surge tank typically doesn't leak there. Possible though. That would be an o ring right there.
When they go, they crack.Rideandrepair and InTooDeep Thank this. -
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First picture is most likely water pump failure. Look up under there, you’ll see a weep hole, if it’s coming out of that hole then the pump is failing.
Second picture, just try tightening the plastic nut.Rideandrepair Thanks this. -
weep hole it is, kind of it to give you warning ahead of time. 368k and it's only needed a starter, I ignored that warning for 6 months until I needed a tow. Everything is a wear item to eventually be replaced. driver included. what goes next after the water pump. I baby the gaskets by not moving it at all until oil temp is at least 150 F then gently up to 200 F, I keep the injectors clean with routine floggings and keep the cylinders clean with 24/7 engine brake. blackstone says it's the cleanest burning DD13 they've ever seen.
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