Ford F-150 - 1997-2003 :: 2001 - Periodic Transmission Leak
Jun 12, 2017
01 F-150 7700 ed. I have a 4R100 Tranny with a 139K miles. It has been rebuilt. Ever since the rebuild (over 10 yrs ago), if I park the truck for a week or so or more, I will end up with a decent size puddle of trans fluid underneath the truck. I took it back to the shop that did the rebuild a couple times, but they could never find anything. It leaks enough to where my fluid level drops enough to cause the transmission to slip in a U-turn because the pickup tube becomes uncovered. I have a couple theories, but am wanting to hear from the collective.
Theory #1 When I park it on my slightly sloped driveway I don't regularly use the parking brake, so it rests on the gears, which eventually forces fluid out an overflow or breather tube.
Theory #2 (a very thin one) due to pressure changes associated with the weather, fluid is somehow siphoned out a breather tube due to some blockage internally in the tranny to where it's not equalizing with the outside air and has a high pressure within...
View 7 Replies
Advertisement
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
View 8 Replies
The transmission line running under the radiator has started to leak. I took a piece of rubber trans. hose and buy passed the cooler. How much does the cooler support the trans. temperature. I don't tow with the truck. And for the most part drive it around 14 to 20 miles one way to work. Is this something I need to replace now or after the temperature hits the 80s.
View 5 Replies
I have a 97 ford f150 v6 2wheel drive. I was driving to work when l heard rattling in the engine like something came loose when I stopped to check my transmission fluid was pouring out drained out in 2mins tops. What do you think it could be?
View 6 Replies
I found a leak today on my 2001 Ford F150 Super Crew, 5.4 engine. In the picture, it was leaking to the right of the spark plug, behind the hose. It was bubbling up from the metal. It hasn't been overheating except when I got home and idled with the AC on. What I'm facing?
View 12 Replies
I have an 01 supercab. 5.4 Triton 135k. I have begun to smell coolant the last couple of days. Have seen nothing leaking and truck doesn't run hot.
Will investigate more this weekend. Where to start looking for this. It has to be leaking somewhere. Windows don't fog and the smell is there all the time. I live in florida so don't use much heat.
Not the heater core. Heat works fine and no smell from the vents.
View 12 Replies
2001 F-150. I've got a leak around the warning switch and can't seem to find info about replacement. Is the switch and switch retainer screwed into the reservoir or is the outer ring screwed into reservoir and more of a compression type fitting that holds switch in place? Also, after removing and repairing will bleeding be necessary? Looks like everything I'm taking apart is above fluid level after I siphon enough fluid from reservoir to replace fitting.
View 2 Replies
I have a leak in my inter-cooler system. I have replaced all the hoses. Is there a reason I should not pressure test the system with 20psi? 2001 F350 7.3 turbo....
View 1 Replies
Transmission lost 3rd and 4th gears so I pulled it and found the direct drum burnt up, got new drum and changed all seals, clutches, steel plates, aftermarket cooler and put a sure cure kit in it.
Truck drove great until it blew the front seal out 250 miles later, took it to a shop since I was away from home and he said the clutches got hot so he completely rebuilt it. Truck made it 150 miles and lost 3rd and 4th again. He replaced all the solenoids also.
Transmission shop rebuilt it again and it made it 80 miles and now it will not move at all. We replaced the neutral switch, shift cable, and shifter handle on the last rebuild because he thought it was hanging between neutral and drive.
What else could be making this transmission keep going out? Could it be a bad case, bad valve body or what? We are at a total loss on what keeps burning it up.
View 3 Replies
So.... here's my issue. I have a 2001 supercrew 5.4 and runs great all day long, no problem starting or anything. After I have driven it for a while and turn the AC on it cools off very good then after about a 1/2hr. the truck tries to stall. It almost sounds like a vacuum leak and really bogs down. I can wait about 2hrs and then with the AC off the truck starts and drives like it should. I am steering to the IAC valve but would like to know if this is it.
View 9 Replies
I have a 2001 Screw 4x4 that had a bad valve on the passenger side. I got the head rebuilt and put it all back together. Now it has a pretty bad oil leak at the rear of the engine. I thought it was the valve cover gasket but when I took it off the gasket was right where it's supposed to be. I pulled the starter and it seems to be leaking out of the new head gasket. What could I have done wrong? The thing runs perfect now but it's dripping oil like crazy so I had to have done something wrong. I used an OEM head gasket from the dealer and torqued the new head bolts to 30 ft-lbs and then went another 90 turn twice just like the book said.
View 14 Replies
I have a 2001 F150 Super Crew 5.4. I had a leak where the water transfer connects to the intake manifold. I decided to get a new manifold rather than trying to repair it. The new manifold from Dorman came and the gaskets were built into the manifold. I torqued the manifold to specs. I replaced everything and it starts fine.
I can hear what sounds like a leak, but can't find anything. I checked every hose that is connected and they are all snug and connected. I had the check engine light checked and it said it was running lean on both sides (p0174, p0171). Also a p0122. I thought something might have damaged the Throttle Body Position Sensor, so I replaced it...but no change.
I'm still driving it everyday because I need to. It won't change gears so smoothly sometimes. The most noticeable problem is that the A/C doesn't work. It just blows hot air. And the worst part about it is...it does it even when the air isn't turned on! I just go around with the windows down...in 95+ degree heat...with hot air blowing!
This is my first time to attempt a manifold change out. What I should check?
View 4 Replies
Recently bought a 2001. In the process of reading about this engine I discovered there is a some what regular breakdown of head gaskets causing water to leak into cylinders and oil pan, all of which is serious.
Given the vehicle is 12 years old and has 89K miles it appears it is in the age and range of where this leakage can occur. Any knowledgeable engine rebuilders that are familiar with this issue on the 4.2 have any comments???
1. Can this issue be avoided by replacing head gaskets now rather than waiting for future failure???
2. Are there new and improved head gaskets for this motor???
3. Does the problem occur on both heads gaskets?
4. Is that all that needs to be done or are there other seals that need replacement???
View 9 Replies
01 F-150 7700 ed.
I have a 4R100 Tranny with 139K miles. It has been rebuilt. Ever since the rebuild (over 10 yrs ago), if I park the truck for a week or so or more, I will end up with a decent size puddle of trans fluid underneath the truck. I took it back to the shop that did the rebuild a couple times, but they could never find anything. It leaks enough to where my fluid level drops enough to cause the transmission to slip in a U-turn because the pickup tube becomes uncovered. I have a couple theories, but am wanting to hear from the collective.
Theory #1 When I park it on my slightly sloped driveway I don't regularly use the parking brake, so it rests on the gears, which eventually forces fluid out an overflow or breather tube.
Theory #2 (a very thin one) due to pressure changes associated with the weather, fluid is somehow siphoned out a breather tube due to some blockage internally in the tranny to where it's not equalizing with the outside air and has a high pressure within... ( i kinda laugh at myself for this one, but I am at a loss over the source of this)
View 14 Replies
The problem started with a front seal leak a few months ago which I had no choice but to continue driving with because of low funds. I don't drive much so a couple of quarts of ATF was usually enough to get me out and about for what little driving I had to do. I know.. a front seal is cheap, but I'm partially disabled and unable to work on anything that is not under the hood.
I finally scraped up enough money to hire a friend to replace the seal, but he had a life crisis before completing the work, so I had to get another friend to reinstall the trany... still had the leak, but I could get around by adding ATF as before.
So we tried again... dropped everything and put another new seal on. This stopped the leak, but we got some grinding/squealing noises and could not get the trany to engage any gear.
From reading forum posts and other sources, we decided to replace the TC which we just completed this evening. We got some more of the grinding / squealing noise like before, except that it only occurred the first time we tried cranking the engine, the 2nd time we got no noises, but again no gears engaging.
What to check/replace next assuming there is something we can look at other than a total trany rebuild or replacement. I personally find it hard to believe we could have gone from a tolerably functional trany to scrap metal just replacing a seal and the TC. Its gotta be something simple we overlooked !!
View 9 Replies
2001 Super Crew
2x2 4r70w transmission
417k miles
4.6l
Transmission shifting hard when under strain. My truck has 417k miles and the transmission is shifting a little hard when it is under strain. For example going up hills when in cruise and such forth, no problems otherwise.
My question is kinda weird: Since the fluid has never been changed or added to for that matter (fluid level is correct) , should I change it now or just ride it out? It is still my primary vehicle and runs perfectly!
I have been blessed with this truck since I bought it new
No engine work
Changed DPFE a couple of times
Cleaned throttle body a couple of times
Couple of pairs of shocks
one O2 sensor
alternator
I know its a weird question but could putting new fluid in at this time make more problems?
View 12 Replies
I Have A 2001 F 150 And I Have Just Noticed That On Cold Morning When The Temperature Is Below 35 That My Transmission Takes A While To Shift Into High. Sometime I Am Two To Three Miles Down The Road Before It Will Shift Into The Last High Gear. Is This Normal Or Should I Have This Checked Out? I Have 53,000 Miles On This Truck And Do I Need To Have The Fluil Changed An Serviced.
View 10 Replies
I've just (a couple of weeks ago) purchased an 03 Santa Fe. I noticed some trans fluid on my driveway a week later, and not a small amount. I took the lower cover off of the engine, and the leak is coming from the transmission oil cooler area. I had hopes that it would be something fairly straightforward to repair, so I got a replacement oil cooler and some spare hose, just in case it was just a hose. After getting the front bumper off, I found that the bottom of the oil cooler is clean and dry-- not the issue. It looks as though the leak is coming from what they're calling the Trans oil cooler "tube assembly", as illustrated on the Hyundai Parts Department trans cooler page as item number 5, part number 2547126011. Am I correct in assuming that I'm going to have to remove the entire radiator to get to this thing to replace it? It appears to be fixed in place, but I can't see any hardware to remove it.
View 10 Replies
I have a 2001 F-150 4x4 SC with a 4R70W. As a a couple weeks ago the transmission (or so I think) is slipping. When I take off from a red light the truck is shuttering. I also can be driving along at 55-60 mph and the truck jolts and shutters. I was reading some other threads and some guys think it could be a misfire, but since mine does it from a stand still i don't think it is. Just throwing that out there because it could be a factor, but once again I don't know.
View 10 Replies
2003 Ford Explorer 4.6 liter AWD. Having some kind of VERY STUBBORN idle / emission problem. When it started it was an intermittent rough idle, mostly going too low or making a periodic "drumming" sound that could be felt and heard at the air cleaner box. CHeck engine codes were PO 442 evap system leak. I first cleaned and inspected throttle body, mass air flow sensor and idle air control valve. I inspected hoses for leaks, including spraying cleaner to see if I could detect idle changes / leaks. I then replaced Idle Air Control Valve. Did not seem to cure problem . SO took it into Ford Dealership and they smoke tested and said needed Vapor Management Valve and Vent Solenoid. I replaced VMV myself. Idle no longer "rattled" but when driving and braking the idle would drop down very low and sometimes not "kick up" and would die. I then took it back to dealership to have them replace the vent solenoid and reprogram the PCM. Still doing it. They said I might have a defective (new) Idle air control and to replace it- otherwise they dont have a clue.
View 2 Replies
I've been getting a random, periodic flicker of the light on the instrument cluster. It seems like it occurs when the rpm's are increasing to 2000. Does the light come on for over voltage as well as under voltage? When I check the voltage at the batteries at idle, I'm in the 14.5 v range. I cleaned/tightened all the wires to the battery and alternator and it is still occurring, will be doing the ground wires on sunday.
2003 4x4 7.3 no tunes
View 6 Replies
