4r100 reverse shudder - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 10-18-2013, 04:35 AM Thread Starter
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4r100 reverse shudder

OK, I had Ford flush my transmission with 130,000 miles on it. I had reasonable expectation/ proof that tranny had been serviced at roughly 80,000 miles. Other than being told that the fluid was low probably due to the rear trans to transfer case seal leaking (high level in transfer case) everything went smoothly. Except.....
The next day while keeping rpms low and driving, the 2nd to 3rd shift acted very funny and pretty much shifted into 3rd then immediately into OD, then into 3rd etc...until I let off the throttle. I paid very close attention and couldn't make it do it again. I thought well, I probably moved a small piece of trash through the system no big deal. Now,

when backing up my driveway (50 ft) on an incline, if the rpms are low it will buck and chatter. If you give it gas and accelerate more aggressively, it will back up smoothly. Any idea on key problems to search for? I have come to a dead end on internet searches. I am actually looking for someplace to backup on an incline repeatedly hoping to "work it out". Any words of wisdom are greatly appreciated. And if you read some of the other forums, I am sorry ahead of time for any duplicate posts. Some people only read one website and I want to get as many opinions as possible.


2000 F350 Crew Cab 7.3 liter 4x4 short bed, 6 pos w/PHP, 6637 filter, hutch, harpoon, 4" downpipe, 5" exhaust, ISSPRO gages, 305 series tires, stock suspension with level kit up front, '05 headlight mod.
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post #2 of 6 Old 10-25-2013, 06:26 PM
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One of the many reasons I never do a flush or let a dealer touch my stuff.



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post #3 of 6 Old 10-25-2013, 08:13 PM
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I would double check what fluid the dealer used and the level they filled it to, especially after they told you that the fluid leaked out of the transmission into the transfer case. They are sealed and filled separately then bolted together with a gasket to catch what little makes it past the input/output shaft seals.

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post #4 of 6 Old 10-27-2013, 02:51 PM
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Quote:
Originally Posted by JSchuricht View Post
I would double check what fluid the dealer used and the level they filled it to, especially after they told you that the fluid leaked out of the transmission into the transfer case. They are sealed and filled separately then bolted together with a gasket to catch what little makes it past the input/output shaft seals.
TC seal failure will allow tranny fluid to enter the transfer case. Most people find this when the transfer case fails from to much fluid.

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post #5 of 6 Old 10-27-2013, 03:24 PM Thread Starter
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they used mercon v fluid, I verified. They said a lot of transfer case to transmission seals fail. I am now waiting for failure to decide if I want to foot the mega bucks on a BTS or buy a 4r100 from ford or take a chance on a HD4r100 (ford says they cannot install it in my truck because it doesn't match my vin)


2000 F350 Crew Cab 7.3 liter 4x4 short bed, 6 pos w/PHP, 6637 filter, hutch, harpoon, 4" downpipe, 5" exhaust, ISSPRO gages, 305 series tires, stock suspension with level kit up front, '05 headlight mod.
2001 F250 ECSB 4x4 - sold
2001 F250 CCSB 2WD -sold
2002 F250 ECSB 4x4 lifted -sold
Mama's 2009 Expedition EL 4x4
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post #6 of 6 Old 10-28-2013, 01:32 PM
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Quote:
Originally Posted by biscayne View Post
they used mercon v fluid, I verified. They said a lot of transfer case to transmission seals fail. I am now waiting for failure to decide if I want to foot the mega bucks on a BTS or buy a 4r100 from ford or take a chance on a HD4r100 (ford says they cannot install it in my truck because it doesn't match my vin)
Your dealer doesn't want your business. Spend the extra coin with BTS.

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