Hoping someone can help me out here as I'm completely stumped and have a 3 hr drive back home. About a week ago I noticed coolant dripping from the driver's side, front of the motor. Nothing crazy, just a steady drip every few seconds. Enough to soak the crossmember. I topped it off and let the truck idle for an hour in my driveway with no leaks whatsoever. I drove the truck for a week and had no leaks at all other than a little bit that puked out the degas bottle from overfilling.
Then yesterday I drive the truck to work, came back out on a break 3 hrs later and it was bone dry under the truck. I did not run the truck at all, but when I came out again in another 3 hrs or so there was the same steady drip from the driver's side front of the motor. So I popped of the cap of the degas bottle and the system was still fully pressurized. After releasing the pressure the leak stopped. I topped it off again and drove it home, again letting it idle in the driveway for about 30 minutes with no leaks at all.
So it seems that it only leaks when the truck is off, and there is pressure in the system. If I take the cap off after I park the truck it doesn't seem to leak. I've checked all my hoses, the water pump and the thermostat housing and can't spot any leaks. Anyone have any ideas as to what this might be?
FYI: I had a cracked head which allowed diesel into the coolant, so it's only been about 3k miles since everything was flushed and all hoses replaced since the diesel had made them weak
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Then yesterday I drive the truck to work, came back out on a break 3 hrs later and it was bone dry under the truck. I did not run the truck at all, but when I came out again in another 3 hrs or so there was the same steady drip from the driver's side front of the motor. So I popped of the cap of the degas bottle and the system was still fully pressurized. After releasing the pressure the leak stopped. I topped it off again and drove it home, again letting it idle in the driveway for about 30 minutes with no leaks at all.
So it seems that it only leaks when the truck is off, and there is pressure in the system. If I take the cap off after I park the truck it doesn't seem to leak. I've checked all my hoses, the water pump and the thermostat housing and can't spot any leaks. Anyone have any ideas as to what this might be?
FYI: I had a cracked head which allowed diesel into the coolant, so it's only been about 3k miles since everything was flushed and all hoses replaced since the diesel had made them weak
Sent from my VS996 using Tapatalk
