Ford 7.3L Power Stroke (1999-2003) :: Loss Of Coolant And Odd Engine Noise
I am trying to figure out the problem with my 2002 ford 7.3 Engine.
[URL] ....
It has a lost of engine coolant. The oil is 100% clean with no signs of Coolant. No chocolate milk effect. Also it makes a Odd thumping noise at idle. I think it is coming from the Exhaust Manifold.
Ford 7.3L Power Stroke (1999-2003) :: Engine Coolant Temp Sensor?
I drove my 99.5 7.3 F-350 1 mile to a friends and hooked it to the OBDII to get a code for my abs light.it had not been drove all day. we hooked into the pcm and he noticed the temp at 375* it was idling. is this right he didnt think it should have been that high???Will the engine coolant temp sensor, if it were bad,show a high temp of 375*? On the OBDII it showed a temp of 375* .....
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Engine Coolant Reached 270 Degrees On OBD Link MX?
Just got my truck back (450) from rebuild on tranny. Hooked up my new obd link mx , and was out running the truck for a while. Started running it pretty hard to see what the gauges would do. Noticed the engine coolant was getting up pretty high, usually around 240-250, and then hit 270!!! My temp gauge on the truck wasn't budging , just stayed between hot and cold. Is this normal?? Seemed pretty hot to me but if i just took it easy on the throttle it would average around 230. If i stop and idle it quickly goes down to 206. Look at oil temp and tranny temp also engine coolant temp is bottom middle.
View 6 RepliesFord 7.3L Power Stroke (1999-2003) :: Engine Coolant Temp Sensor Locations?
I was going to order a ECT gauge and was wondering where to mount the sensor. I have already used the port under the T-stat for the coolant filter. The gauge sensor is a 1/8 NPT. Would the block drains be a good location, or is there another location that will work.
I know the coolant filter housing has a port, but I would prefer the sensor be on the motor.
Ford 7.3L Power Stroke (1999-2003) :: Oil In Coolant / Oil Level Drops But Coolant Level Stays The Same
My friend bartered for a '99 F250, 2wd/auto, 4 door, 7.3, 258k miles.
It had reportedly sat for one year, though the expired registration sticker and other things point to it sitting for two.
It ran low on oil, sputtered and died. Oil in the degas tank. Filled to oil to mid way on the hatch marks on the dip stick.
I drove it 25 miles to my house, and the oil level is not reading on the dip stick.
The sludgy fluid level in the degas tank is unchanged. Where is the fluid going?
I will refill the oil to see just how much it lost in the 25 miles if it important to someone, but I prefer to not waste the oil.
My first plan is to remove, inspect and replace the oil cooler o-rings. Even though the dealership charged him for this, I don't trust that they did it right. I think it is the easiest and mostly likely place for oil getting into the coolant.
It does have a really long crank before there is enough low pressure oil for it to start. At the moment I think this is a separate issue.
The dealership also charged him for a replacement injector. No idea if they replaced the cup or not.
Ford 7.3L Power Stroke (1999-2003) :: Oil In The Coolant - Normal?
What is the effect will some oil contamination is the cooling system?
Does it significantly affect the cooling efficiency? I have some oil the coolant on my boat. I do not believe it is a lot maybe a few oz, but I have been chasing some unexplained overheating issues. Will adding water wetter solve oil issues (if there are any). The other option is Dawn and several cycles of flushing the system. ie until the cows come home!
Ford 7.3L Power Stroke (1999-2003) :: Coolant Overflowing Through The Cap
I have a 2002 excursion and every time I try to put the coolant at the min level cold, it overflows through the cap until it is about 1.5-2 inches below the min level. Then it stops. I just did the oil cooler seals last night because I had a little oil in the coolant. Same thing happened this morning - overflowed again.
View 10 RepliesFord 7.3L Power Stroke (1999-2003) :: Coolant Seen While Injector Out?
Although not certain, I *thought* I saw coolant run into the front drivers side injector hole when the injector was out and I leaned on the radiator hose. I had knowledge t pull them and changing the orings who were initially concerned then not concerned after looking closer.
Either I made a mistake in what I thought I saw on my first experience with injectors, or there really is a problem that I didn't know enough about to address at the time. So I opened this thread to get more info and stop hijacking 67speeda's thread, found here: [URL] ....
As per recommendations, I will check my coolant bottle for any fuel, oil, residue, etc. I am also going to reach out to my buddies and see if they saw a problem with coolant, too, or they realized it wasn't coolant and I didn't take note of it ...
It was a REALLY LONG day and my ability to concentrate had begun to slip quickly (health issues), so it's possible I missed something there. So IF I saw coolant going into that cylinder with the injector removed, how bad would that be? I thought it came from pretty high up and ran down where the injector sits..
Ford 7.3L Power Stroke (1999-2003) :: Oil / Coolant Leaking Down
So just a couple hundred miles ago I changed the oil and oil filter in my 99 7.3 ... It wasn't till today I noticed an oil/coolant leak ... It is on the driver side of the engine by the oil cooler ... "It isn't the oil cooler leaking already checked"... It seems to be behind the water pump to the driver side of the hpop... Where the thermostat is it is like right behind that but I can't think of what it is .... Its not the oil pump leaking ... It is leaking down and being blown back across my oil pan and oil filter... That is the oil cooler it has residue but its not the problem
View 5 RepliesFord 7.3L Power Stroke (1999-2003) :: Won't Start - Bad Injectors - Coolant In The Oil?
So we begin w/ another saga for the 7.3l Excursion......
A few months ago it started running like crap, real crap and blowing white smoke like crazy. Well I knew this from a previous episode and I had a bad or multiple bad injectors. I tried to trouble shoot which one it was and maybe just replace the one or two....but no it was worse than that. So Life was really busy it kinda got shoved aside until now.
I pulled all the injectors and had them rebuilt locally ..nice. They ended up being with mech for a couple of weeks because he went out of town...no problem. Well this entire time my rig was untouched and when I got them back #7 was full of water.....great, bad injector cup. #7 was the only one, the rest were dry. So I drained the radiator and the oil and left it overnight to completely drain and installed the new injector cup in #7. Next day I refilled via both heads because the valve covers were off, 4 gallons of oil and a new oil filter. Cleared the cylinders via the glow plugs and commenced to trying to get her started. Nada......just cranks, killed the batteries, recharged over night and left the box on them and still nada....but the oil was still very milky at this point.
So tonight I pulled all the injectors back out and drained the oil again, still a lot of water. This time I sucked out the HPOP reservoir and got a more milky water/oil out and I'm leaving everything open all night.
In the am I plan to check my overflow water level in the hopes it remains at the same level...if so I will reinstall all 8 injectors and refill the motor w/ 4 gallons of fresh oil and try again.
Oh, while I was attempting get her started I put my buddies Snapon scan tool on it and I got the p1271-p1278 codes w/ the buzz test. (low side to high side open circuit between idm and injector) So I found the pin test with everything connected at the idm pigtail and everything tested good. So I'm back to my not so fresh oil anymore is the culprit to it not starting.
Am I missing something here?
Also....another fun filled fact is that I seem to have a fuel leak somewhere at the rear passenger side. Every time my fuel bowl fills up, if I shut the key off it will drain down. Sometimes I can see fuel dripping quite vigorously onto my starter but I can not see where it is coming from. I have while it was dripping ran my hand along the head and the fuel lines and can not find where it is coming from. Any thoughts as to where in the hell this fuel could be leaking from?
Ford 7.3L Power Stroke (1999-2003) :: Losing Coolant But Only At Low Elevations?
Since changing to ELC a couple years ago, my truck will leak a small amount of coolant when I stay over night at the beach house. I haven't noticed any coolant leaks at any other times. I was down there Saturday night and it leaked about two or three tablespoons of coolant over night. I drove home Sunday, and my truck has been parked in the same place for almost 72 hours without a leak. This has happened a couple dozen times over the last two years. The elevation of the driveway at the beach house is 6' above sea level. "Home" (around Houston) is anywhere from 35' to 80' above sea level. Is there any way that the lower elevation is causing this leak? I'm pretty sure it's coming from the thermostat housing, but because I replaced the upper hose, I can't tell if the dried ELC around the housing is new or old.
View 12 RepliesFord 7.3L Power Stroke (1999-2003) :: Low On Coolant / Oil Droplets On The Starter
Edit, I have also noticed I have been getting low on coolant, but without any noticeable coolant leaks. My engine oil still looks clean, where could the oil be going? How do I fix it?
2003 Excursion 153,000 miles - stock injectors, gt38r with new pedestal, Adrenaline HPOP, double transmission cooler.
I've noticed after some heavy towing with my camper (8,300 lbs), I've been getting a new oil leak showing up on my garage floor. I crawled underneath this afternoon and found three large oil droplets on the starter. See picture. What could this be dripping from?
Ford 7.3L Power Stroke (1999-2003) :: Check For Fuel In Coolant?
Is there any kind of test short of sending a sample to Blackstone or the like to verify if there is actually fuel in my degas bottle as opposed to oil residue from bad oil cooler O-rings?
View 7 RepliesFord 6.0L Power Stroke Diesel :: 2003 - Engine Heated Up Due To Loss Of Coolant
So I have a 2003 6.0 king ranch w/ 164k on it.. EGR delete, high pressure oil pump, coolant filter and SCT tuning. A couple months back I had a coolant flush done. After about a week the coolant tank was empty.. Engine heated up due to loss of coolant.. I flushed system again and put ford gold coolant back into the tank. (5 gallons). A couple days later and coolant was very low and engine heated up?? There are no signs of leaks anywhere...Added water and it cooled back down. I'm lost. EGR is deleted but no studs done.....
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Severe Oil Leak And Coolant Disappearing
I was searching for an oil leak forever. In my search for the leak I resealed my hpop, redid oilcooler rings and last week had a friend pull my motor to redo the pan gasket. The leaks were almost down to where I thought we had them beat. Now in the last couple days I'm losing coolant and oil....bad. there is oil on the ground mostly from the cross member. Question is did my oil cooler fix not take? I have read that a nicked of ring can cause this.
View 11 RepliesFord 7.3L Power Stroke (1999-2003) :: Coolant Leak From Behind Timing Cover?
I have a coolant leak from behind my timing cover found while doing a coolant system pressure test. I do not want to remove the engine. Looking for info on successful cover install with the engine still in the truck?
View 8 RepliesFord 7.3L Power Stroke (1999-2003) :: 2000 - Diesel Fuel In Coolant
2002 7.3 F350, 190k miles ....
If there is indeed diesel fuel in my coolant, what is the most common cause of this problem? Truck has low power when towing 8 tons.
I've replaced water pump due to truck overheating and blowing off radiator cap during first hard tow up steep hill.
Replaced all radiator/heater/coolant hoses.
Replaced radiator.
I've also flushed the cooling system 5+ times now with coolant flush and distilled water. Each time, less and less evidence of brown-colored stop leak.
The stop leak looked like diarrhea, slightly chunky. After the third flush, stop leak in coolant lessened.
HOWEVER -- 4th/5th flush of coolant each still looked like brown milk. Coolant has a strange chemical smell, possibly diesel fuel.
Ford 7.3L Power Stroke (1999-2003) :: Coolant Leak On Passenger Side
2003 7.3 175,000 miles...
Saw a stain in my driveway where you normally see AC drip. Opened hood and saw degas empty.
Looking around like crazy and find wet area. Where the coolant line turns down beside the passenger fender.
Looks wet near bend going toward running board. Didn't get to inspect much but I pulled back a bit of loom to inspect shape of lines and they look great.
What could be going on?
Ford 7.3L Power Stroke (1999-2003) :: Additive In Coolant So Injectors Don't Rust?
Someone just told me I need to put additive in coolant so the injectors don't rust. I've never heard of this.
View 14 Replies