Ford 7.3L Power Stroke (1999-2003) :: 2002 F350 - Leaking Rear Differential
Mar 9, 2017
I'm trying to figure out what axle I have on a 2002 f350 single wheel 4x4 so I can order a replacement seal. So this morning I got to work and noticed that am oily guild was dripping from the front of my rear differential where the drive shaft hooks into it. I figure it the seal, so when I went to look up the repair kit they list several different axle options because of gearing, what axle I have as there wasn't a in owners manual with the truck. Who can I find out what axle I have so I can buy the repair kit for it...
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...when changing the fluid and RTV'ing the rear differential cover?
Usual suspects: Brake cleaner, Simple Green, soap and water, gasoline, etc.
I've never serviced one, but figure it is like this:
1. Drain
2. Remove cover
3. Spray, clean, rinse, whatever all the innards
4. Wipe and dry
5. Inspect. For what, I have no idea
6. Black RTV cover back on, replace drain plug, remove fill plug
7. Refill with 75w-140w Mobil 1 Synthetic (not sure what it is, but I looked it up here some time ago and bought enough)
8. Fill to within a finger tip's dip in the fill hole
I've had the RTV and oil for a while, but it's supposed to hit 59F here on Saturday with no rain!!! Time to crawl on the floor and get it done.
I didn't see any problems with my cover, so going to forgo the new aluminum finned cover this time
Guess the biggest question is what should I use to clean/flush the rear end?
This is 2002 Excursion WITH LSD rear differential. 4WD.
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My truck (02 7.3L cc) started making a grilled ding type of vibration when I would let if the throttle. I felt the axle going into the rear differential was a bit loose, so I took the cover plate off. The pictures below show where the pinion I think is hitting, sort of like the bearing is allowing front to Rear differential scaring from movement. Rear movement.
How difficult is a rebuild, and is there anything I should be careful of?
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I am on the fence with getting rid of my 7.3. Here's why. Whenever I crawl underneath the truck or look under the hood I see all these different oil/fluid leaks. She has less than 200k miles and I use her to tow my boat to go fishing.
Right now I am trying to weigh if the truck is worth keeping or selling and then getting a new/newer truck.
Here are some leaks. One is obviously oil and coming from what I guess is the front main seal. I really don't know. The other leaks going onto the U-joint look like oil leaking down the axle from the front differential.
I'm growing a business and not sure if I have time to play mechanic. However, everyone I talk to always exclaims, "You got a 7.3?! You luck SOB!" and I am kinda getting the feeling letting her go would be a mistake. FWIW, she is paid off.
Other than a slight wobble in the steering wheel at speed, she runs like a hoss.
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The rear differential on my truck has been whining for the 2 years I've owned. The fluid has been changed but of course that didn't really solve anything. I'm trying to decide if I want to rebuild it. Was looking at buying the USA Standard brand rebuild kit, ring and pinion, and axle bearings and seals. How hard would/will this be to do myself?
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I was getting ready to replace the carrier bearing and noticed the rear pinion seal is leaking. Before attempting the replacement myself, I would like some opinions on the noise in the video below. Is this normal? I am confidant I can replace the carrier bearing and pinion seal, but not sure I have the tools for anything else.
YouTube ...
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Saturday morning my grandpa drove my F350 into town pulling our 4-horse trailer (With living quarters). I wasn't with him, but I was told the following: he started smelling something hot and noticed the O/D light start flashing. Now, this man is not the most intelligent man on the planet and uses the O/D to "slow down the engine" when he starts and stops - i.e. uses it as trailer breaks. I have asked repeatedly for him to quit, but as best as I can tell, he continues to do so.
After the burning smell, a driver pulled up next to him and pointed down - he looked to see smoke and the truck puking fluid everywhere. He said he thought the truck lost power because he couldn't get it to move. Ended up getting it towed. The tow truck driver checked my fluid level and said I had an extremely small amount of transmission fluid left in the truck...which made sense as the fluid was all on the ground underneath, lol. Fluid was NOT red and looked really gross and there was DEFINITE burnt smell to it.
My question is this - what in the world could have caused the truck to do this (I read that is could be from overheating?), and what should be my next course of action? It is home and in my backyard right now (Classy!). It starts and runs fine, but since there is little to no fluid left, you have to hammer down on it to get it to go anywhere. It does move, however.
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My transmission on my 2002 7.3 4x4 is pouring fluid from somewhere above the rear of the pan. I thought it was the pan at first. I pulled it off and replaced the filter. After adding fluid while it was running for 4 or 5 minutes it started pouring again. It's not the pan. It's coming from above the pan somewhere. It won't leak unless it's running. Is there a place it can leak on top??
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My issue I'm having - 2002 F350 7.3L has an 8 inch bds lift with 37/13.50 tires. I realize these tires are big but... while driving 100kms/hr or 60 miles per hour and I hit the gas the truck barely wants to move (without pulling a load). Thought maybe a turbo but I have no mechanical skills so here I am!
2nd issue, there's a bullydog chip in that truck when I bought it. he said he always ran it on extreme. I found it puffs way to much black when on extreme and on performance it seems a lot better so that's where I have it?.
3rd issue, the transmission gauge on the dash goes into red when climbing up hills ( I live in the rocky mountains so a lot!) but the bullydog chip says the tranny is only at its hottest 140C? I don't believe that's to hot but I do believe my truck is derating a little while the tranny gauge on the dash is in the red? is there any quick fixes out there for these issues.
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I have a 2002 F350 4wd with the 7.3. I was driving the truck and all of a sudden it was running like crap. the engine light was on. after a minute or so the engine light goes off and the truck is running fine. then again starts running like crap. I am close to the house so I limp it home. runs like crap.... will barley climb small hills. engine light is on. get home turn it off... next day... starts up and runs great for 10 - 15 min. engine light comes back on... runs like crap.... my neighbor says "It's the crank position sensor" I replace it.... runs great for a month.... now it's doing the same thing......
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Pretty sure my rear plug is leaking on my HPOP. It has a nylon washer under it which is different than what I have seen on all the write ups. I bought the truck with 189k on it five years ago.
I attached a photo....
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I'm presently traveling and my '02 F-250 with a 7.3 PowerStroke has developed a pretty steady drip of what I am almost sure is diesel fuel. It's dripping from the very front, from the shroud around the fan and radiator area.
I have some basic tools with me, but no experience on this engine or the fuel system. Does the fuel line go up into the radiator area? What should I be looking for? I'm stranded in a campground until I figure this out.
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I have a 2002 f350 dually with a 7.3 and 197k. At 186k it died while driving and I had it towed home. As soon as the tow truck dropped it the truck fired right up like nothing was wrong. Then it died again 2 days later. I replaced the cps, but the fix was replacing the icp and pigtail. Now it is doing the same thing again. It died on my wife while driving yesterday, i had it towed to the dealership I work at and it started and ran for about 2 hours with no issues.
I hooked up the factory IDS and had a diesel tech look at it with me. The oil pressure, injector circuit and injectors, and IPR all look good. The batteries were a little weak so i replaced both of them. I drove it home yesterday, about 10 miles, and drove it around town today. Then i tried to jump start my 96 bronco and after about 10 minutes of running it sort of hick uped then 5 minutes later it died and would not start. I let it set for 30 minutes and it started and died after about a minute.
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2002 F350 7.3 intermittently wont start after I've shut it off, it runs fine but sometimes won't start when it's (warm)? Wait hour or more and it starts right up.
Is there something I can look for before I bring it to a mechanic?
Just to clarify I am a gal with little wrenching skills but I can look at videos and follow directions if it's not too involved.
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2002 F 350 7.3 4x4
Aftermarket gauge will climb to 250 after around town driving of an hour or so or multiple trips within the hour. Not towing. 160,000 miles on odometer. Changed trans fluid at 40,000 mile intervals. Most recently about 1500 miles ago. Most recent change using Mark K's method. Was getting fluid from rear port when I changed fluid. Blew out oil cooler and there did not seem to be a blockage as flow was sufficient.
Still overheating according to autometer trans gauge in test port. No codes retrieved using auto-ingenuity also O/ D light is not flashing. Would like to run torque converter slip test using AE according to wooden things method but TC slip desired and transmission gear ratio is not available under that name in live data meter. AE just updated to most recent version.
I purchased a new tranny oil bypass and will install soon. Also purchased a new 6.0 cooler to replace stocker but am hesitant to install if tranny is failing because I am concerned that the new cooler will just get some blockage from a potentially failing transmission and I will be buying a new cooler along with a BTS rebuild.
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I have a 2002 f350 dually with a 7.3 and 197k. At 186k it died while driving and I had it towed home. As soon as the tow truck dropped it the truck fired right up like nothing was wrong. Then it died again 2 days later. I replaced the cps, but the fix was replacing the icp and pigtail. Now it is doing the same thing again. It died on my wife while driving yesterday, i had it towed to the dealership I work at and it started and ran for about 2 hours with no issues.
I hooked up the factory IDS and had a diesel tech look at it with me. The oil pressure, injector circuit and injectors, and IPR all look good. The batteries were a little weak so i replaced both of them. I drove it home yesterday, about 10 miles, and drove it around town today. Then i tried to jump start my 96 bronco and after about 10 minutes of running it sort of hick uped then 5 minutes later it died and would not start. I let it set for 30 minutes and it started and died after about a minute.
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I finally got my 02 F350 running again after replacing the Fried PCM, but during some additional shop prep work, I discovered that the engine dies when you use the horn button, it will start right up afterwards so no permanent damage, but, Where to start? I have Forscan and a cable so I can get into the PCM but I need to know where to look or what PIDS I should be watching during troubleshooting.
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I have an 02 F350 7.3 ... I just installed my glowshift tripple gauge pillar set. I have an EGT, Boost and fuel pressure gauge ... I followed all the constructions on installing them. The boost is working just fine and the EGT was too, but after a while the needle started going back and forth and the red warning light what blinking and then it just sat at 0 with the warning light on and stay that way. My fuel pressure gauge is connected to a sensore i put in my fuel filter housing, my fuel pressure gayge right from the start stayed at 30 psi with the red warning light on and just stays there .... Also the buttons to change the color and set the peak on the EGT gauge are sticking for some reason and staying down and aren't letting me change the color ...
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I have a 2002 f350 7.3. It was running fine 2 days ago. After I put some diesel in it my water in fuel light came on. I drained the water out and took all the fuel out and put fresh diesel in it. It starts up fine and idles okay but when I try to drive it it looses all power and acts like it's starving for fuel and almost dies. It was smoking white smoke for a little bit even after I took all the water out but now it's black. What it could be.
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I'm new to diesels and I've got a 2002 F-350 w/7.3L 224K miles. I've had it for about a year and had no problems. Burned a little oil, about a quart every 1000 miles or so, but in the last two weeks it's gone through the roof. I have gone through roughly 12 quarts in 300 miles. I see a lot of blue smoke at start up, and it's being harder and harder to start in the cold. From what I've read it could be several different things, and I plan on doing the CCV delete and changing the orings on the injectors just for good measure. Is there anything else that I might check as well, or am I completely off base on what it might be?
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I have a 02 f350 4x4 6 SPD one of my transmission lines has went bad is there anywhere that sales them.
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