Ford Super Duty (1999-2016) :: 2005 F250 - Transmission Slipping Going Uphill
Apr 26, 2011
I bought my F-250 Super Duty 6.0 last October, and I am extremely happy with it comparing to my former '03 Dodge 2500 TD. The Ford drives so much better!
There is only one problem I have with it. Without pulling it shifts nice and has lots of power. A Month ago I bought a fifth wheel trailer and I hardly notice it behind the truck, also it doesn't use more diesel pulling. However going uphill the transmission seems to slip, and I can hear (sounds like) a fan running loud? I loose speed.
All the temperature gauges stay normal, no difference. It starts to pull worse. I replaced de tranny filters, inside and the outside one. Also I did put the correct transmission fluid in there, no difference. Almost no grindings in the oilpan/magnet.
I looked on many sites, but cannot find anything on this. Personally I think it's the torque converter? My final step would be to have the transmission rebuild, with the best parts available, (close to WA, ID, MO)...
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I been having a issue with my truck lately. It's a 2008 with only 88,000 miles. When doing 55mph it feels like the transmission is slipping. Sometimes it will do it over and over. If I speed up to about 60mph it goes away.its has gotten worse in the last month or so. Hoping it's nothing major.
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1999 F250 SD... Tranny fluid is low, tranny slipped one time on me. I checked the fluid and it's low. No drips on the garage floor, so I'll have to inspect closer. But my question is can I add new fluid without screwing it up even more? It's got 170,000 miles and I doubt the fluid has ever been changed. I just bought the truck last week, so I can't say for sure, but it hasn't had a regular flush or change. It doesn't smell burnt but it's just a little darker than new fluid. I was told by the guy I bought it from that the torque converter was changed in it not too long ago.
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2011 f250 gas 4x4... I bought last year with 65k miles, now has 105k. sometimes when accelerating it slips for a second like a manual would if you jabbed the clutch while pulling. I had the 100k trans flush done. I noticed it a couple times before but more frequent recently. How concerned should i be?
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'06 Power Stroke/136k miles.
This last weekend I was towing my rzr up hill and the tranny slipped, lost power, and the "Wrench" check eng came on. I pulled over, checked my fluids, checked for leaks, checked for smells, couldn't see anything visibly wrong.
Turned it back on and no other issues on the way to the camp site. On the way home, days later, same thing happened twice. Is the tranny going bye bye? Would it be worth it to get a flush for the possibility it just may be the fluid and maybe some sediments or something of the sort?
AND the bigger question is, if it is the tranny, should I trade this POS in, or replace the tranny? It has had a few problems lately with the turbo. Needs a new AC compressor. I didn't do much homework or know about the 6.0's before I bought this truck. After I bought this truck last year I heard about all the problems the 6.0's have and wished I would have went another route.
I can turn a wrench pretty decent (Aircraft Mechanic) but I have very little knowledge on vehicles, let alone this POS. I am apprehensive about doing a transmission or any big components without assistance. This is why I am trying to decide what the best option would be for the long run.
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I have a 1997 F250 heavy duty 4x4 7.5 efi. I just bought a 2003 weekend worrior weighing 5800lbs dry. When I go up slight hills in 4th gear it seems to work real hard especially on freeways, could my clutch be slipping or am I just at max tow
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I am again trying to fix my truck. 2005 F-250 6.0 4wd, automatic. Truck now has 89K on it. Truck does not seam to go into lockup mode while driving down the road. it started just after I spun my wheels in a snow storm. No symptom's previous to this. No codes in dash no lights and also no codes when I checked it with an obd code reader.
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Last few months my 08 F250 has been slow going up hills. The fluid checks out ok and it shifts fine.
It just seems to take forever to get up hills. Has 124K....
Also has a huge hissing noise thats RPM dependent on the passenger side. Will make the sound in neutral just revving.
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Truck is slipping in/out of gear in 3rd gear. Shut it off and the problem may not come back for several days, but in general it is getting more frequent. No codes are registering for the transmission. Curious the wisdom of performing a simple fluid/filter change vs taking it to the transmission shop. Fluid basically looks/smells good, and is full.
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I have a 2005 f250 super duty turbo diesel 6.0 automatic. The problem I'm having is, when I engage the tow/haul button the transmission doesn't down shift unless I feather the pedal. Also the engine will overheat at times. I've replaced the thermostat, but that's all so far.
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Got the truck 2 months ago and it only happened 3 times; always on a cold engine.
2 times were on my street at low speed just out of my driveway. It's like the engine shuts down for a while and maybe downshifts too. Feels like someone is stepping on the brakes for a second and then all is back to normal.
Last time I was getting out of a restaurant and accelerating hard to get up to speed on a 70km/h road. The downshift happened while I was going almost 70 but still in low speed so the braking effect was severe enough to throw me forward. Once again everything was fine the next second.
I'm not sure if it's the transmission downshifting or the engine cutting; maybe even the ABS kicking in for some reason. It happens too fast and too rarely to be sure. My feeling from what I remember is that the truck is downshifting and I'm feeling the braking effects from compression. 6.2 engine.
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Driving up a slight hill unloaded yesterday at about 40mph constant pedal pressure the truck shifts into neutral...at least that's what it feels like. Revs go up and no power. When I take my foot off the pedal the transmission catches and drives fine. There is no bucking or hard shifting, just that slipping. What it could be? This problem arose suddenly....never had any problems prior. It is not an issue that has gotten worse over time...
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I have a older minimax with the latest updates and have noticed that under full acceleration the tranny seems to rev up faster than the truck is accelerating. This occurs i think in 3rd gear like accelerating onto a on ramp etc. Kinda like its slipping if you know what I mean. I'm running the mild tunes in tow mode. Everything else seems ok.
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I recently had a thread going regarding my 1999 F350 2wd auto transmission slipping in/out gear. Tried to follow up on old thread but got confused so I'm trying to start a new one. Basic problem is that truck was slipping in/out of gear. Cleaned the solenoid pack electrical plug (as instructed on previous thread) and the truck didn't act up for 2 weeks. Today it started slipping in/out again and this time it registered a code of P0705.
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While driving up hill at 60mph the truck lost power. Rpm jumped up as to change gears as it hit 55mph. Still losing power until it shut off. I tried to restart and just got a click from the solenoid. No engine codes whatsoever. Battery had 12.1 volts but when turning the key to start in getting 8 volts. Had it towed home. Today I swapped batteries with my other truck and same click noise from solenoid. All lights, radio, ect still work. Where should I start? Alternator, fuses...?? 2008 f250 5.4 ...
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Heard a 2011 F250 gaser while driving in the morning just falls flat on its face, almost like its starving for fuel as well as it feels like the tranny is slipping too. What this could be? I am not sure if its electrical or what.
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I was towing a 16' Carmate Box trailer (empty), in tow/Haul mode, through the mountains on the PA turnpike. On an uphill section, 70 mph, suddenly blue smoke was pouring out of the back of the truck. I immediately slowed to about 50mph and pulled over at the next opportunity, about a mile. The bottom of the trans pan was coated with fluid, mostly on left side and the exhaust crossover pipe was smoking. Gauges were all normal. Ambient temp was 90F.
I drove another 40 miles, mostly about 60 mph. No problems. When I started climbing in elevation, and hit 70mph again, the smoke started again. I pulled over again and crawled under to fine the crossover pipe in flames. I grabbed a rag and beat out the flames. Fluid was red. Gauges were normal again. Once I disconnected the trailer, I can find no leaks. Snugged pan bolts. I cannot duplicated the problem without the load and speed.
Background: 2005 Crewcab, 5.4, 5R110 trans, 3.73. 416,000 miles, I have towed about 50K miles of that. Trans always ran great. Never replaced.
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I have a 2001 F250 SD 4x4 5.4L . I purchased the truck used with about 120,000 miles on it. It runs great despite averaging about 10.8 mpg. Shortly after I got the truck, I noticed what I thought was an intermittent transmission issue when the trans would shift. I would get a "flare" that lasted briefly as if the trans was slipping, but it was accompanied by a sound that I'm not sure how to describe, but it was somewhat like hitting a rev limiter. It only happened when the transmission shifted. The fluid was clean and did not smell burnt. I assumed it was a misfire issue, even though it did not happen often, and seemed to only happen at shift points. I changed all of the plugs and all of the coil packs. It still does the exact same thing. Sometimes it only does it once every couple of days, and other times it may do it 3 or 4 times a day.
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2005 F-250 King Ranch Diesel ... My truck when I got it the 4x4 wouldn't engage. I replace the front inner seals, and the lock outs. Still wouldn't work. Took the shift motor off and freed it up and it worked fin till today. Changed the shift motor and still nothing. This truck has been nothing but problems since I have had it and now this ... Truck is going on the market soon and would sell better if the 4x4 worked ...
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F-250 2005 XLT 5.4L 4X4. Had ford for a few years now (Escape as a personal vehicle and econoline as business vehicle). Now I'm having a little problem with 4x4. It wont engage. Worked fine last week and now nothing! I did check all the fuses and when i switch to either 4Lo or 4Hi I can hear a clicking sound behind the switch but feel like it's getting blocked or something. Tries a few time then stop...
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I have had the ABS light on for about a year now. I looked thru the forums and found that the typical reason if a faulty rear VSS (vehicle speed sensor). I found a replacement part online and got it ordered and replaced the original part. Simple 5 minute fix, but it didn't fix it!
Now when I get in and start the truck the ABS light is off, but after I drive off about 20 yards the light comes back on and stays on.
The other day someone stepped out in front of me at a cross walk and I hit the brakes pretty hard and although the truck stopped in time, the rear wheels locked up, so I'm thinking the issue is at the rear.
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