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Ford Expedition Transmission Problems
243 messages, Last post on Mar 07, 2013 at 9:54 AM
You are in the Ford Expedition Forum.What is this discussion about? Ford Expedition, Transmission, SUV
#177 of 243 Re: 2005 Ford Expedition XLT [swharton1] by mjstech
Feb 21, 2011 (10:22 pm)
Replying to: swharton1 (Jun 18, 2007 5:47 pm)
The term "sunshell" your being told about or may have heard is probably what is really called a sun gear. A sun gear is a part of the mechanical set-up in an automatic transmission called the planetary gear set. Gears spin and rotate around the sun gear, thus giving it the terms sun gear and planetary gears. Automatic transmissions have from 1 to possibly 3 or more planetary gear sets, depending on how many forward and/or reverse gears the transmission has. In your vehicles case, it probably has 2 planetary gear sets in the transmission. It is possible that a mechanical defect in the transmission (planetary gear set) could cause a clunking noise due to the amount of high weight and stresses the transmission undergoes. If the planetary gear set is the cause of the noise, and it was confirmed with a good diagnosis and repaired properly, the noise should be gone. Otherwise, there is most likely something else wrong with the vehicle and another proper diagnosis should be performed to see what is really wrong with the vehicle.
#178 of 243 Transmission on 1999 Eddie Bauer 5.4 by lew67
Feb 26, 2011 (2:14 pm)
Our 99 is not running all that well. This morning it seemed to be ok, but my wife just took it out to go shopping. The spedometer is way up past our actual speed and the 4x4 won't engage. Any ideas? Do we need a new tranny or is it in the transfer case?#180 of 243 2000 4.6L 4WD Trasmission Problems by labadida
Mar 06, 2011 (6:41 am)
Good Morning, I recently had a transmission colling line rust through while driving my truck. It started to slip while in drive, I pulled over and found the problem but I made a mistake and put a quart of Dextron III in for replacement. It continued to slip while I drove it home which was about 5 miles. I found the broken line and replaced both as the other cracked as O was putting in the broken one. I drained all fluid from TQ converter and pan with Mercron V and now it will only shift into reverse. What would be the next step in repair for this vehicle? Any advice would be appreciated, I am capable of most any repair work but have not rebuilt a transmission before, only replaced one on a RWD Volvo.Thanks so much, Noel
#181 of 243 Transmission jerking when coasting by klpjr
May 01, 2011 (11:41 am)
I have a 2006 Expedition Limited with about 116,000 miles on it. When coasting at about 45 mph, only giving enough gas to maintain 45 mph, the transmission makes a clunking sound until accelerate to a higher speed. When I accelerate, there is more intense clunking until I accelerate out of it. The clunking only happens when there is little load on the transmission when coasting. Othen than this, the transmission is fine.Is this a sign of something more serious to come?
Thanks
#182 of 243 Re: Transmission jerking when coasting [klpjr] by gvid
May 03, 2011 (10:22 am)
Replying to: klpjr (May 01, 2011 11:41 am)
I have exactly the same problem. It never happens in lower gears, but I have had it happen at higher speeds when there is no load and I increase the gas just slightly. It seems to be an "overdrive" issue. If I gas it aggressively, it will downshift with no problem. Let me know if you hear anything, and I'll do the same.
#183 of 243 Expedition transmission problems 2006 by diehardfordman
May 08, 2011 (2:35 pm)
I have a 2006 ford expedition eddie bauer and when taking off it feels like it is missing a gear, then when slowing down it downshifts hard. I have replaced the spark plugs, changed the oil and filter, replaced the transmission oil filter since it has 60k miles on it. This was the original filter because the dipstick plug was still in the pan when I dropped it. I put the correct transmission fluid per the man. specifications. I cannot see the transmission going bad with only 60k miles on it. Is there some kind of sensor or vacuum line that I can check?#184 of 243 Re: 2007 Ford Expedition Traction Control [camp49] by rebel_girl
May 16, 2011 (9:35 am)
Replying to: camp49 (Jun 15, 2007 11:02 am)
Hello!! I just bought a 2007 Expediton EL 4x4 in January 2011. I am now having the same issues that you have in this post. Have you found anything else out about this? What was the issue?
#185 of 243 Re: Transmission jerking when coasting [klpjr] by cheapdad0000
May 17, 2011 (6:46 am)
Replying to: klpjr (May 01, 2011 11:41 am)
I have the same problem on my 2005 XLT. At 40-45 it shudders, if I force it to downshift then it moves into the next gear as expected. Also, drove with overdrive turned off and problem goes away, so makes me think its something to do with the overdrive.
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