I'm hoping my 6.0 hasn't met the same fate as so many others. Was coming up a hill on my way to work when I heard a loud bang pop sound. When I pulled into work and parked the was a large puddle of antifreeze forming under my truck and steam coming from under the hood. I was late and couldn't check it.
Please guys any help would be great. I'll be checking it on my first break.
Need to check on it first, where behind a screen and not your hood. If you see antifreeze coming from "x" spot then we can try and point you in the right direction. Could have been a hose blowing up for all we know. Do a little investigating and report back
Update. Opened the hood an looked underneath. Everything is wet. So I filled up the coolant back to max and drove it down the street ad back. Parked it and let it run. No leaking an the coolant is still full.
Didn't lose power. After that pop n the fluid puddle under the truck it sat for 4 hours till I could check it on break. I refilled the reservoir and drove it around and there's no sign of leaking or loss of fluid. Even after driving it for a few miles.
I don't know what caused the pop and loss of fluid.
I've had that happen on mine before my studs and egr delete. Simply just over pressured and coolant came out the degas bottle cap. The whole drivers side of my truck was covered and you could smell it burning.
what is done to your truck? if it puked that bad..... it will do it again. when my gaskets went the second time, I was using about a gallon of water every 40 miles, sometimes less....
When my puked it only happend once. I've heard of some just happening once and some trucks puking all the time. Could be head gaskets. I've also know trucks that just had bad caps.
Took some coolant out so that the level is between the MIN and MAX. Gonna run the truck tomorrow on the same hill doing the exact same acceleration and speed.
I hate asking, but fir y'all who have blown gaskets, did the pressure test work for y'all? The one where you t into the coolant line and put the gauge on it, we had a truck come in our shop, losing like 2 gallons a day, can't find any leaks, the truck has had gaskets once, yesterday I put an egr delete kit on it, so we will see if that solved it, but the guy drives the absolute dog piss out of his 6.0, and anyways, when I did that test, the pressure wouldn't go above 15 psi with my foot to the floor
The cap relieves at around 16 psi, so if the cap is working, the pressure won't go above the relief pressure (unless you have a large leak of combustion gas into the coolant).
After you see the 15 psig and the engine is hot, carefully/slowly unscrew the degas bottle cap (wrap a towel around it completely to make sure you don't get sprayed) and drive it some more to see if the pressure will build again. If it does, you have combustion gasses leaking into the coolant from somewhere.
The way the degas bottle works is that the pressure build is from the expnsion of the heated antifreeze. Once it has been fully heated, it won't expand anymore.
Get a test kit that looks for combustion gasses in the coolant. Or do the low budget test. Take the cap off the degas bottle and tape a latex glove over the opening. Let the truck idle, if it inflates at idle you have a problem.
Please start your own thread in the gasoline engine forum if you’d like help. This thread is almost 10 years old. Thanks.
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