Ford 7.3L Power Stroke (1999-2003) :: Transmission Leak Coming From Near The Back Of Pan Around Gasket?
Jun 14, 2011
I've never had a drop of fluid leak from my transmission until yesterday. I towed a very heavy trailer (10k or so with tons of tongue weight) about 300 miles and I got back and noticed a decent amount of fluid leaking. The transmission temperature never went over 160 on the drive. I know these transmissions tend to puke oil sometimes, but doesn't that only happen when they overheat, or would a very heavy trailer have the same symptom?
It appears the leak is coming from somewhere near the back of the pan around the gasket. More specifically, it seems the one bolt pictured below is leaking. All bolts are tight and the pan gasket was replaced about 6k ago with the last fluid flush.
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I replaced the filter and gasket on my transmission about a month ago, it had a slight leak when I changed it, that appeared to be coming from the back side of the pan. So changed it and everything seemed good, today I noticed a small puddle of fluid under the truck after setting only a few minute's. Got home crawled under it and sure enough it was coming from the pan gasket again, now last time when I replaced it. I put a small amount of Permatex on the gasket back there, but it is still leaking there.
I checked when i had it apart the other day for a crack or anything noticeable but figured it was just the gasket was bad ( was a cork type gasket). Its hard to get the pan in there between the cross member and the transmission so I am not sure if i scrapped the permatex off or not, I am gonna take it all back apart and check it again and put a new gasket in and put the permatex under the gasket and on the transmission then hope for the best... 97 4.6 4x4
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I have a 2000 Ford Excursion 4x4 7.3 with 230K miles, around 15,000 miles ago I replaced the transmission with a rebuilt 4R100, lately I have noticed a leak towards the back end where the transmission and the transfer case connects. Some of the bolts on the bottom of the pan have ATF on them, some others however do not. I have had to add a quart of ATF in the past couple of days in order for it to engage into drive when going from Park to Drive. I have to rev it before it actually kicks in. I'm hoping the leak is just being caused by a gasket either in the pan or connecting the trans to the transfer case..
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I had a leak coming from the top of the transmission. The antifreeze appears to be getting into the transmission because when I pull the stick it's a chocolate/white fluid and both the antifreeze and the transmission fluid are new. So, I am talking to two transmission places, trying to decide which one to go with and what to ask them to install because it seems I have different choices depending on what I want the truck to do. I will be using it to haul dirt and farm items, pull a 20 ft cargo hauler, maybe a rv some day.
The transmission guys are throwing all kinds of lingo out there I don't understand. and the price is anywhere from 2500 to 5000 for the tranny. Also they tell me what is included and what is to be changed out but I don't know if it's "everything". One guy said that the "John Woods" brand of tranny is what I want. Also I think my stock engine is fine. A cylinder contribution test shows only one with an issue and it seems to rev fine. The glow plugs need to be replaced I think. Where I'm getting here is if later I have to replace/rebuild the engine should I get a bigger tranny now?
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I purchased the truck over a year ago and never had a problem with the transmission. The only issue was a leaking transmission pan gasket so I changed it put the same fluid that came out back in it since it looked brand new and didnt smell burnt or anything. So fast forward time and my girlfriend was driving the truck over the winter and lost control of the truck and spun it around and hit the front end of the truck into a rock wall.I have a weston bar on the front end that took the majority of the hit.
Shortly after the transmission would start to run warmer than normal. It would be 20 degrees outside and my transmission temp sensor would be reading around 140. Now that the weather is getting warmer the transmission is heating up a lot more. I took it to a guy to have him look at it and thought maybe the cooler was clogged or something like that and possibly put a larger cooler on it. He called me up a few days later and said their was a larger cooler already on it but it was not hooked up. It is a black one mounted on the front of the radiator. He said he cut the lines off of the old one and there was a slight bend in the one line so he cut a little higher than that line and then hooked up the cooler.
He told me he blew in the lines and there was no restrictions in it, i guess no pressure when we blue on the lines. I drove it home and the temp went higher than ever before up to 220. The cooler on the front was ice cold and trans pan was hot.I am starting to think maybe the bypass is bad and the fluid isn't getting to the cooler. The fluid is still pink and does not smell burnt so I want to fix the problem before any issues arise. The truck has 137000 miles on it. I have attached pictures of the cooler that he said was already there but not hooked up.
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Kind of bummed my truck now leaks oil from both the front and back. It's not much volume wise - probably a pint every couple months but before I came up to Alaska it had never leaked a drop. Probably nothing I can do about it barring a rebuild. I have noticed all the guys say not to use any oil additives of any kind. Trying to get it in a shape for another epic journey back down the Alcan highway this fall. Or should I get rid of it and go for a 6.7.
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Have another oil leak, just finished the pan flange gasket last weekend, made it 150 miles, now a new leak.
Took the spider out and everything on top, cleaned the valley up good, the fired the truck. HPO lines are good, but have a drip off the back and bottom of the HPOP, when I reach under it from the back, its right below the large 2 inch circle.
What this might be? was thinking possible orings somewhere under there where it seats, but its been 6 years since I replaced all the orings, don't remember exact layouts.
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I have a 2001 F350 4x4. My transmission went out a while back. It would only go in reverse. I had it rebuilt and it is still having issues. When I take off with speed from a dead stop it shifts late...about 3000 RPMs. It shifts fine until it shifts into overdrive. It will go into to 4th then right into overdrive causing the truck to act sluggish.
I'm looking into my truck not starting well at any temp too! I didn't know if it could all be connected some how. My mechanic said that when he first started my truck it had a MAP sensor code. He also said that when he unplugged that sensor it didn't change the way the truck ran..Still like crap. I have changed all glow plugs relays and even did the mod to it.
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I have a 2003 Excursion with a 7.3 and 240,000 miles. I have oil leaking around the transmission and the local diesel shop found the pedestal leaking. I installed a new pedestal from Rotomaster Part # A1382205N. It came with new O-rings and turbo bolts. I ran the truck and it began leaking again. Thinking I had pinched an O-ring I pulled it apart again but found nothing. I cleaned and inspected everything and reinstalled. Its still leaking. I used a straight edge to ensure the sealing surfaces were straight.
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Well hear I am again fix one problem now I got another problem last time it was fuel now it's oil so what I got going on is a oil leak that looks like it's coming from on top the motor on the back I first discovered this nice surprise when I went into the store and came back out and seen two 8 inch round puddles of oil laying on both sides of the motor like I said at the back I thought rear main seal but upon further inspection it's coming from somewhere on top and rolling down both sides of the motor looks like near the turbo what could this be possibly a line or a check valve or seal or o ring on the turbo? Is there a common thing to go bad on these trucks to cause a leak in that area?
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I've been battling this truck for over a month now and starting to go a little crazy, It's a 2001 f350 7.3L, with a "used" 7.3L engine from a 1997. Transferred all the necessary parts to make it happen. Keep getting the evil p1316 idm codes detected coming back upon start up. Anywhere between 5-30seconds after starting the left bank dies. I've gone threw and replaced the IDM with a reman unit. New valve cover gaskets (with new harness). even went the extra mile and put in a new power wire (for the driver side) running directly from the new valve cover into the IDM bypassing a connector above the left valve cover. All injectors are checking out around 3ohms. With glow plugs all around 1-2ohms. What's interesting about this is, I can disable any one of the injectors on the left bank (doesn't matter which one) and the engine runs great considering it's down on one cylinder. But when I hook up that last injector it will kill the whole left bank again.
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So after a hot drive yesterday we thought to do some googling about our clutch cycling on and off so fast. Yep, the airgap was out of spec. Fixed that.
Then we added some refrigerant to the truck. The truck is "new to us" and this is our first summer with it so not sure what might've gone on previously with the AC. Didn't take long to find a rather sizable leak. :P
See that metal tube going into the "spongy" area? Yeah, that's where it seems to be coming out. That tube is the only one that's cold, the rest are ambient temp. We fix a lot on our jeeps, but the AC system is naturally a bit out of our wheel house since it's not something you normally tangle with. Is this an easy fix? Or do we need to take it in to get serviced?
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I've thought I smelt diesel fuel on an off for a while, but never found the source.
Tonight, 17 degrees out I have fuel in the valley and it appears as if the back of the drain valve is wet.
A fuel bowl rebuild is on the short list. Is this typical, the cold weather brings the issue to light?
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Last couple of days I've been chasing a small oil leak. Finally figured out it's coming from one of the hoses connected to the lower part of the hpop (hpop hose). Leak is coming from the fitting connected to the lower part of hpop. Do I need to replace the whole hose and fitting? Just the fitting? is there a replaceable washer or oring?
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So I've been getting a whining sound coming from the transmission area. I checked my transmission fluid and it's nice and pink so I checked my transfer case fluid… It came out like black watery gear oil! How bad is this? I am putting synthetic Dex/Merc back in it. It's got me a tiny bit concerned.
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I recently purchased my 2011 F250 Powerstroke a week ago today with 87000 miles on it. the dealer assured me they did all the maintenance on the truck before i was able to drive it home. I noticed on my dash that it kept popping up i needed to change oil soon.. so i got out to investigate and realized i was about a quart low on oil so i looked around more and am seeing that i have a leak coming from the back of the engine running down to the oil pan.. I have not noticed any on on the ground at all but what this leak is coming from...
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I have a small coolant leak coming from the passenger side near the back of the engine that forms a spot about the size of a dinner plate if it sits for a few days.
One thing I noticed is if I turn off the AC selector switch when I park I will get the drip but if I leave the switch on MAX AC when I shut the truck off I do not get any leaking.
It is definitely coolant and not just the condensation from use of the AC. If I haven't used the truck for a few days or if I have run it with the AC off I will get the drips.
If I run with the AC on and leave the switch in the on position when I shut the truck off it won't leak. I have tried to locate it from looking above and below but can't determine where it is coming from.
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I have been having non-stop issues with my tranny. After getting it rebuilt (by some BS shop my warranty company told me to go to) it is starting to leak when parked for more than a day. It generally pisses out about 1/2 to 1 qt overnight when this happens. I crawled under the truck and it looked like the fluid was coming from the pan gasket. Rather than taking it back to the mechanic that decided to take 3 months to fix it last time, I swapped out the gasket myself. This did not solve the problem. Where and why else could it be leaking from? It is not over filled, I have checked multiple times. I would prefer not to have to hand my truck back over to the incompetent 'mechanic' that 'fixed' it last time.
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So, I just got my turbo back from my pal Ruben at SoCal Porting (does good work fast and inexpensive) and, I have a question about the exhaust housing with the EBPV.
Is there a gasket that goes between the turbine housing and the adapter that the down pipe mounts to? And, if so, what is the part number for it? If it's steel to steel cool. If not, I'd prefer to put the OEM gasket in there versus permatex or something similar.
Pic of the compressor housing with a little port work....
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I have a 2000 f350. Lost power whole driving and won't start back up. I have checked all my fuses and relays several times. Have no power to the fuel pump. Tried running a hot wire straight to the pump and still nothing.checked my emergency cur off switch and there is no power there. Also my WTS light isn't coming on now. Tried checking the heater bowl and no power there.
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I have a 03 F-350, 7.3L. There is a slow oil leak that only leaks after I've run the truck. In other words, it doesn't just sit and leak overnight. I'll park it after running, and the next morning I'll notice a small pool of oil, approximately 2" in diameter. The leak appears to be coming from the oil pan area. I degreased the entire oil pan area to get a better visual of where the leak is coming from. I can see oil trailing down the front of the oil pan and the rear of the oil pan. Does this sound like the gasket? Or, what else could it be? I'm praying its not as bad as I think and need to replace the gasket.
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