Ford 7.3L Power Stroke (1999-2003) :: E350 - Fresh Coolant Flush Now Seals Leaking
Mar 17, 2017
So a dead thermostat forced me to drain the coolant in my E350 7.3L. I noticed the previous owner had green coolant in the van so I decided to do a flush and put in the right coolant. I used Shell Rotella ELC. Well, I noticed after coming home the other day that the van was leaking coolant, upon inspection I noticed its now leaking from the water pump, then today the drain valve sprang a leak! What the HECK is going on!? Is it possible that the seals were shocked when I changed the coolant? Not looking forward to doing a water pump replacement on an E350... sure is crammed under the hood.
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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
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This weekend my friend and I plan on doing a coolant flush, new Mishimoto thermostat housing with high temp thermostat and install a Mishimoto coolant filter.
Truck currently has some unknown green coolant in it and Im going to replace it with Rotella ELC. I plan on doing a couple hose water flushes then follow with about 5 distilled water flushes. I've been reading about putting some Cascade in on first flush to dissolve any silicate goo that might be in there hanging out. I might give that a try. Im sure I can manage this part from all the stuff I read about doing flushes.
This is the part that looks like a little more work involved than the flush. Doing the thermostat kind of worries me because of the tight area in there to work with the fuel line and the EBP sensor being right there. The current thermostat holds temps around 175-185 under normal driving. I bought the new Mishimoto thermostat housing with the high temp thermostat installed in it when they had their pre sale going on for the housing.
I decided to just go with the whole thing because of all the stuff I read about people having issues with the thermostat not fitting the older housing correctly since Im certain I have the original housing from 2004, like everything else that's still original on my truck. I plan on removing the thermostat before doing the flushes and then installing the new housing and thermostat and coolant filter before I add the ELC.
The coolant filter install looks fairly simple to do so I should be ok with that.
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I've had my early 99 f350 7.3L for a lil while now. Starting to see few problems surfacing. while doing my weekly fluid levels found oil in coolant and after looking around found oil covering bottom of driver side engine. As far as i can see it looks like oil cooler leaking from front side.. Should i just replace oil cooler or rebuild?
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I have been noticing my brake pedal is very firm on and off also my power steering seems to get harder to turn than other times. But today i was sitting at a few lights and could hear my power steering pump growling at me intermittently if you want to call it that.
Also sometimes my truck will pull to the left or right then it goes away if i hit the brakes again. I don't see how the hydra-boost system would do something like that. But its not the slide pins because i just greased those along with new brakes and rotors all around at the beginning of winter.
I noticed when I grabbed my fluid lines going to the hydra boost from the power steering pump they seemed to rattle very rough so that makes me wonder if the pump isn't going out. How are the brakes supposed to be on these trucks? nice and soft? rock hard?
By the way truck is an 02 with 144k on it
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I have replaced all the injector seals as well as the ball cup seals but when I crank the truck over after a few cranks I see oil bubbling up from the top of all the injectors. When looking at the injectors from the "top" side all looks well but when I use an inspection cam from down below I can see this happening. Any thoughts?
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So my outer axle seal went out on the passenger side again after only 4,000 miles. What gives!? I can't figure out why its burning up. My hubs seem to be working correctly. I've only used the 4wd a hand full of times since I replaced it. Any thoughts?
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Truck has never been flushed. Would you try and back flush through oil cooler or just do a regular flush according to the procedure in the tech folder?
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I just had my oil cooler and EGR cooler replaced, and I'm now consider doing a coolant flush with Restore/Restore+ to ensure the coolant system is clean. I know this might be backwards and perhaps should have done the flush first, but schedule and such did not allow. I do have a coolant filter.
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I'm planning on doing the regular scheduled coolant flush but not sure if it can be done without any special equipment.
One dealer said they don't do many diesels but have a machine to do the refill and quoted ~200$. The other does more diesels but hasn't done a flush in a while and quoted ~500$ and said he does it old school by draining everything out and then water flush followed by refilling the systems.
Which one is right? Can it be done in the driveway? Which is the correct coolant for the refill and are any additives required after filling?
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I am still failing to appropriately diagnose the problem(s) with my '03 Ford E-350 7.3L Powerstroke. This van has only 69,000 miles on it. A week or two back (just a few days back in work time) it suddenly went from running perfectly smooth, clean and wonderful to this:
- Zero power. Putting the van in gear and flooring the engine causes lots more smoke not nearly any rev of the engine and just a crawl forward.
- Lots of smoke out the back exhaust, whitish. I cannot discern wether it smells like diesel or oil (because I'm ignorant here), but the smell is very strong.
- After warming up and idling ~ 15 min I check under the coolant cap and see no signs of bubbling or disruption (from opening the cap in the coolant tank).
- After warming up there are no warning lights visible on the dash, and I don't have a computer to read codes (if there are any to read).
- I replaced the turbo up-pipes which had a visible leak previously. This did not hurt the symptoms, though no more visual leaks under the dog house.
- I thought maybe I put gasoline instead of diesel in the truck, not so.
- To do the above test I had to use the fuel pump to get gas out the tank to test. I hijacked the fuel pump output and turned the car on a few times to get gas out to a tank. The pump seemed to work just fine.
This was all very sudden which is perplexing, and, in use, the van was previously an ambulette and in my few miles with it (maybe 200-300 only) use was extremely light for such an engine/van, just driving around doing errands. I am not sure if this is relevant (no one has suggested so, yet) but before all this happened I uninstalled the rear HVAC that came with the van when I bought it. The AC lines were sealed under the hood. The coolant line was returned at the doghouse (you can see this at the beginning of the video).
At the moment the van has no power to go anywhere. I have not yet checked the CPS or IPC sensors, and understand this might be the next route in standard troubleshooting?
2003 Ford E 350 7.3L Trouble - YouTube....
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My 99 E350 with 7.3 power stroke quickly lost power while on the highway today, bogged down and died. I couldn't get it restarted so had to have it towed home. I tried getting it started at home but it just pumps out white smoke out the exhaust. I got it to fire and run for a minute on a mixture of starting fluid and wd40 but wont stay running. Some background info, I checked oil and it was low but still registered at very tip of dipstick so I topped off oil level and still no start unless I give it a mixture of starting fluid and wd40. Batteries are good and cranking fast. Truck has 355,000 miles but very little blow by and prior to this had plenty of power and didn't have to use the block heater to start it thru the winter even when the temps dropped down to 12 degrees in January.
One thing I did have an issue with this past year was an intermittent cutting out while driving where the engine would instantly shut off but as soon as I tapped accelerator pedal it would start running again like nothing happened, wouldn't even last two seconds and it was running again just like shutting off the key and turning it back on and when it would do that the "Wait to start" light would come on and gauges would drop like key was off but again it all went back normal as soon as I hit a bump or tapped the accelerator pedal and it never lasted more than a second or two and never had to pull over, just tap the pedal or hit a bump and engine would kick in and run fine so not sure if that's related to whats going on now or not.
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I have a 1999 Ford e350 7.3 powerstroke with 140000KMs on it.
The truck cranks really well but it just wont fire off, not even with a shot of starting fluid.
I recently changed all 8 glow plugs, fuel filter, fuel, oil and I keep it plugged in, my last mechanic told me the engine is toast and it cant be fixed.
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I have a 99 Ford e350 7.3 Powerstroke with about 150000KMS on the clock. However I am having a really hard time starting it in the Cold Canadian Winter (-30). Last week I changed all 8 glowplugs, the batteries, the oil, fuel, fuel filter and yes i always keep it plugged in.
It cranks really well, but it just wont fire not even with a shot of start fluid. I don't know anything about these trucks much less a diesel engine. A guy took a look at it and said my engine needs to b replaced. (I think he is wrong)....
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I have a 2001 E-350 with 7.3 that will not start on its own. It is showing only 80psi ICP while cranking. It started with the aid of some starting fluid it will run at 550 psi ICP but the ICP duty cycle is running over 20%. We started with less than 10 psi while cranking and after a new IPR was installed it's now at 80 psi while cranking. There is good battery voltage oil is at correct level the HPOP is full. I just don't know what to look at next.
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One of my batteries on my van is on the frame rail. The box rusted out so I routed the battery into the back of the van for now. The van wouldn't start because the batteries were low. I charged the battery in the front engine bay overnight but it did not charge the 2nd battery, does that mean there's a disconnect between the two batteries? I thought they were in parallel.
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I've been getting some grayish/blueish smoke on cold starts lately and decided to do some investigation to see if there was a problem or just the cold temps.
I googled it and turbo oil seal problem was pretty common so I figured it was easiest to start there. I removed the pipe between turbo and CAC and it had quite a bit of oil it in. The pipe after the CAC had a fair amount as well. I checked the oil level in the engine and it was slightly down but I can't say how accurate the dipstick is nor it was completely full after the last oil change. Either way, not much oil is entering the intake but I would assume any is too much.
Here's my main concern - What's the likelihood of getting a runaway from this?? Is it possible for the oil seal to fail 'more' than it already has putting more oil in the intake allowing for a runaway condition?
Obviously the turbo needs replaced but is it safe to run it the way it is until it completely fails or replace immediately?
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I have a 2001 E-350 w/7.3. When I start the truck first thing or when engine is cooled down it starts fine. I checked the high pressure pump pressure and it is 500 - 600 psi start up great. But when engine warms and try to start it it has long crank before starting. I checked pressure and it is between 425 to0 450 and takes awhile for it to get to 500 or better. Is this a cause of the high pressure oil pump ? I changed the oil and still does same thing. Also I noticed that after engine is hot and I try to start it, while cranking the engine the oil gauge does not move. I don't know if it supposed to when you crank it or not. I thought on other 7.3's I've worked on that the gauge builds up pressure....
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I recently purchased a used 2001 E350 with a 7.3L and the transmission is not shifting properly. It will go into Reverse no problem, put it in "D" and it starts in high gear and will not shift out. If I manually shift from 1 to 2 to "D" it works fine and will even go into OD. It will not down shift on its own either. What should I do to fix this issue?
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I am going to install a coolant filter on my 2004 6.0 E350 van. I have read threads about bypass filters and full flow filters and I started asking myself "Why use a bypass when I can filter all of the coolant?"
Is there any reason why someone should use a bypass filter? I bought the van used knowing I would eventually have to do most if not all of the 6.0 repairs. IPR sells a complete coolant filter.
I talked with the people at FICM repair and they suggested I do my research but leaned towards the IPR cooler. Ed spent a good 30 minutes on the phone answering all my questions and never asked if I wanted to buy anything. If anything, he was trying to stop me from throwing money at the van until I isolated what needs to be repaired.
I already bought the Sinister Kit and requested a return.
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2002 e350 7.3 diesel transmission... At 7 miles the speedo began bouncing and truck drops into second. Parked it 30 minutes, stated up no problem until 8 miles and the it started again. Have checked most of the electrical, changed speed sensor and transmission position sensor. Only error code 2-3 rd gear mismatch.
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