Ford 7.3L Power Stroke (1999-2003) :: 2002 - Degas Bottle Is Building Pressure And Coolants Puking Out
Aug 3, 2016
My degas bottle is building pressure and coolants puking out. This happens after a light drive started months ago it sat at mechanic for 3 months he never touched it just wanted to replace motor so i brought it home. The truck starts and idles and runs fine temp gauge sits at normal. There was white smoke a few times several months back when it started up but went away after warm up but none now. I don't drive it i have a spare vehicle i tried doing exhaust gas test on degas bottle to check head gaskets today with no luck. They gave me the gasser only fluid with tester. No coolant on the ground and I've added the dye to see it with ultraviolet light no leaks around radiator.
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I've been MIA for a while. 2006 F250 just hit 83k miles. My coolant must be puking out of the degas tank. White residue all over degas and drivers side engine bay. I had my mechanic buddy pressure test coolant system for several hours and he said there weren't any leaks. He told me to replace the degas cap for now. Didn't solve the problem. Temps have always been fine. Never found drops or a puddle of coolant. Even when the truck has sat overnight for over 8 hours, there is still a bunch of pressure built up when cap is removed.
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I have a 2006 6.0 with 165,000 miles. No over heating runs fine ,no smoke but I have oily foam in my degas bottle. No coolant in my oil. Scratching my head over this.
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I have coolant leaking from under my degas bottle. There was a spot on the driveway this morning and upon investigation, I saw a drip hanging from the bottom of the degas. No liquid on top at all. Where this is coming from? Bottom hose?
Also, the boot that connects the tube (right side while looking at front of truck) to the elbow that goes into the intake is leaking oil and making a mess. Whats the best way to fix? Remove boot, clean up, and put back on? Or replace boot? If replace, where can I get that boot?
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Just bought a used 2011 ford f350 with the 6.7 diesel engine. Coming from a 7.3 1999 f350 with 330,000 miles, still going good. Took a 1000 mile trip on the 11 truck with out pulling anything did good. Hooked my enclosed trailer to it did a trip of 900 down and 900 back. Transmission temps were staying around the 250f, almost in yellow on gauge. Highest it went was 255f. Light never came on. Yesterday on trip without trailer was staying at 230f on trans temp. This is the first concern.
Second concern, had antifreeze coming out the cap on the degas bottle. Rolled over the hood and hit the drivers side windshield. Stopped un did the cap, it hissed. Put 2 quarts of antifreeze in drove on, this at 300 miles of trip. Primary water pump went out, half way there, at about 550 miles of trip. On trip back, about 1600 miles of trip, antifreeze was on windshield again. Undid cap, hissed, did not need to add any to it. Drove on no problems since. Have bought a new cap and installed.
Transmission doesn't want to shift right when its cold. First starting out. When it warms up shifts great. That's third problem.
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I was towing my camper uphill and my 03 6.0 started missing and blowing black kid smoke. Next thing I know I hear a loud pop and steam is coming from under the hood and the truck dies. I pull over and discover the degas lid is stuck on and the bottle came apart at the the seam and the truck will not start. 6.0 with 120k miles
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Im lost here, my 6.0 is building coolant pressure on start up, and the temperature is not overheating. I cant tell if the pressure is staying high while driving, but its blowing coolant passed the cap. Thermostat? The truck was on a coolant pressure tester for 24 hours and never lost a pound of pressure.
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My worst fear realized when I saw oil pouring out of my degas bottle today. It was pressurized pretty good too. No coolant in the oil though. And no coolant coming out of the oil cooler after pulling the filter.
Ive had this 2000 Excursion since new and have 263000 miles on it with zero engine trouble. Ive always said if the engine goes its all she wrote. So I'm just sick!
Ive done every repair on this baby myself. Ive bragged on this engine for 17 years! Literally nothing but oil and plugs but my luck just ran out.
So, Im pretty sure I know whats wrong but Id like to hear what y'all think it is and how bad it is to fix. Ive searched this forum as usual which has never failed to steer me in the right direction but Im not finding the answer this time.
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My truck has a 6 o powerstroke. I noticed some coolant loss, which I've been monitoring since I had the truck studded 2 years ago. Today I was looking around trying to find a cause of the coolant loss and I noticed some crusty orange residue on a hose that runs under the coolant reservoir. The hose seems to go behind the valve covers along the firewall to the passenger side through a steel line, and then go in a loop back to itself?
I'm guessing it's for the heater core, but I didn't see where it actually goes into the heater core, or anything else for that matter. It is a molded hose that has one of those crimped transitions into the steel line, so I'm not sure if patching it is an option or if I should look at replacing the whole piece. I'm guessing it's going to be expensive. From the fact that it never failed before, I'm thinking it wasn't originally routed with it touching the valve cover and was just something that happened after having the body off during the stud install.
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I have had this truck for about 8 months now, and it has been the fine only thing it really has is and EGR cooler delete.
It has started puking from the coolant reservoir, and I am not sure why. going to parts store within the next hour or so to get a new one. I have a scan gauge II and always watch my temps very closely. I am normally at 190-205 with never more than a 10-degree delta between EOT, and ECT. I am hoping I will not be taking my truck to Powerstroke specialties tomorrow!
There is pressure in the degas bottle after the truck has been running. also there is pressure after it has been off for a few hours, but much less. I've read this is a bad thing, and also that it is a good thing also i always use ford gold coolant and t6 full syn Rotella with all Motorcraft filters.
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I am installing a fuel pressure gauge into my 02 7.3 I went to the thread the sensor into the plug hole on the fuel filter housing and it wasn't threaded, turns out the sensor thread is slightly smaller and a different thread ... The directions say to install it into the filter housing or the lift pump ... So I'm assuming I have to go the lift pump direction of installing it but where the lift pump is or how to install the sensor into it while not throwing a code or causin problems ... A step by step and even pictures.
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2002 VW Eurovan. It will (after some braking) not release the brake pressure and actually lead to undriveability. In other words: I can go for a drive, apply the brakes at the stop signs and then I can feel how the van gets slower and slower even though I am on the gas. All 4 wheels keep getting brake pressure, the pedal gets harder and I have to stop. Then I have to turn the engine off, after 20 secs I can hear a loud groan that goes through the vehicle and the brakes are released. If I restart the engine too soon, the same thing happens again right away. If I wait at least a minute before restarting, then I can drive away until it happens again (and it does not always do it). The van got a new brake booster 15kmiles ago. I am at a loss. Brake fluid flushed regularly, newer pads and rotors, 195kmiles on the van.
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Low power on my 2003 7.3 F350. The truck runs fine but I can tell it is low on power (seat of the pants). I figured it to be fuel related so changed fuel filter and oil with no change. When that didn't work I installed a fuel guage and this what I found. Key on no start fuel pressure 45 psi. Start truck the pressure will get up to 61psi. Under a load it will drop down to the low 30s. I have dropped the tank mixing chamber screens clean and so was the tank. Changed fuel pump and now under a load it drops to the high 30s. Does this sound like the fuel pressure regulator is leaking by and causing low pressure under a load? Truck is stock besides superchips 1705 programer.
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My high pressure power steering hose just blew at the "B" nut at the pump. Meaning, the fitting is still in the pump but the line is out. Do I need to replace the whole line or is there a retainer I can swap out?
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I just replaced my 3rd HP power steering line last night( 3rd in 300K, always blows the same point....fitting comes apart where it attaches to the pump.
I'll start, mine have gone about 100K plus or minus 10K, almost thinking about making it a 100K maintenance item.
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I just bought a 03 7.3 Ex w rebuilt motor done really nice .. it has a Terminator HPOP .. and pressure spikes to 80/85 on cold startups and spikes until engine warms up .. engine only has couple thousand miles on it .. is that normal ??
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Found this tonight. Looks like oil in the degas. No smell of diesel, just the familiar odor of new green coolant. Cap was still holing pressure when I opened it.
Looks like I need to change the oil cooler. What is the best way to flush the cooling system out that has a leaking cooler and is contaminated with oil?
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Ok so this past Saturday I drove the truck about 40 miles round trip to get fuel and came back to the house to pick up my tux for a wedding I was in that afternoon. On the way to the wedding I went about 10 miles down the highway doing about 65-70 mph and all of a sudden I heard the engine just shut off. No stutter or anything.
Went to restart and nothing just cranks. had to call and get a tow back to the house real quick and grab the excursion and head to the wedding. When I got home on Sunday I hooked AE up and started to poke around.
RPM around 150-170
Batt Voltage 11.5-12
IPR up to 65%
ICP 0 (have tried to unplug and start) (sensor is dry no oil bleed through)
Buzz test is good all injectors are strong. I am sure it is the lack of oil pressure but I dont know why. I can get more info from AE if needed.
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my 2006 6.0 will roll over 300,000 miles this week but today I was pulling a 24' pontoon boat that should only weigh a few thousand pounds from hot springs Ar where there are some small rolling hills and the outside temp was 70 degrees. I was driving between 55-60 most of the drive. On a few of the longer hills my eot got up to 220 with the eot trying to catch up.
On the down side it would fall to 185-190 and the eot would also follow. On about a 5 mile straight stretch the ect was 208 and eot 202. When I got home I opened the hood and I do have coolant puke around the degas bottle. After opening the cap there seemed to be a steam/smoke coming out of the degas bottle. There was still some coolant in the bottom but not a whole lot.
On my drive to work every day my delta is between 6-8 degrees with the ect between 188-194 depending on ambient temp. So does this sound like my head gaskets finally let go? Will them blowing raise the eot/ect when towing?
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I need to install an oil pressure sensor sending unit. I've already occupied the 1/8"NPT test port on the rear of the oil cooler, where else might I be able to tap into oil pressure? (LPOP)
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I just recently installed a CTS2 Insight and wondering what the typical boost pressures I should be seeing without a load just normal driving. Right now I am seeing mostly 0 unless under acceleration then it goes up to 10 psi if I floor it I am getting 15psi.
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