Transmission troubles
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Transmission troubles
Need some Insight, I have an 06 f350 6.0 lariat fx4 with electric shift 4x4 was headed down the road going about 50 and went to give it a little fuel and I heard a loud pop, and the power loss to the rear wheel was instantly gone. No grinding or whinning gear noise. Now that I towed it to the house I started it and put it in drive and you can hear a consistent click/tick in any gear. The truck tries to pull and you can feel it move ever so slightly. I checked the fluid and there is no color change but it smells like a burnt clutch, anyone have any ideas on what the issue may be?
Fleet Mechanic
Joined: Nov 2003
Posts: 1,372
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From: West Cornwall, CT
At this point recommend crawling under the truck and performing a visual inspection of the read driveshafts and transfer case. You want to determine if the problem is internal or external.
If everything looks OK on the visual inspection the next step is to see if the problem is in the transfer case or in the transmission or engine flex plate. With the truck off an in Park, jack up the rear of the truck to where the wheels are off the ground (block front tires while doing this). Turn the rear driveshaft by hand. If the transmission and transfer case assembly is good, you will not be able to turn the driveshaft. If it turns, your problem is internal to either the transfer case or transmission. If the driveshaft does not turn, you may have a broken engine flex plate.
Any testing while running the engine or going through gears will make any damage worse and make the eventual repair more costly. Other folk here may have some better advise or troubleshooting methods, but this is a start.
Lou Braun
If everything looks OK on the visual inspection the next step is to see if the problem is in the transfer case or in the transmission or engine flex plate. With the truck off an in Park, jack up the rear of the truck to where the wheels are off the ground (block front tires while doing this). Turn the rear driveshaft by hand. If the transmission and transfer case assembly is good, you will not be able to turn the driveshaft. If it turns, your problem is internal to either the transfer case or transmission. If the driveshaft does not turn, you may have a broken engine flex plate.
Any testing while running the engine or going through gears will make any damage worse and make the eventual repair more costly. Other folk here may have some better advise or troubleshooting methods, but this is a start.
Lou Braun
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
Here is an even easier thing to check: Will the truck roll in park, or does park hold it?
If it rolls in park either the differential failed or the transfer case failed. If it holds in park either the transmission or the flex plate failed.
If it rolls in park either the differential failed or the transfer case failed. If it holds in park either the transmission or the flex plate failed.
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It does hold in park, I thought it was the transfer case as well but I crawled under the truck while I had put it in drive and the clicking noise sounds to be coming from the bell housing and trans pan area. There is no gear chatter, bringing or anything to make me think gear issues I was also thinking of the trans mainshaft. What do you suggest if it is the reason, a total rebuild to be safe or just a mainshaft replacement.
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I have plans on taking it in the shop tomorrow and pulling the trans, I'll keep you posted on what I find. Thank you for your inputs.
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It was the torque converter and flexplate. Thanks for all yalls help, I do have 1 more question and would like to get your opinion. I have a 07 f250 with a blown motor and good tranny with about 35k less miles, would y'all put in the complete tranny or just the torque converter and flexplate?
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