Slipping Trans?? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 17 (permalink) Old 11-12-2009, 10:34 AM Thread Starter
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Question Slipping Trans??

My question is, my truck in sig seams like all the power is not making it to the ground, it just seams like it used to feal stronger. It has been a long time since i felt what a weak or slipping tranny feals like so i need some suggestions if it sounds weak or if its normal. I used to have another custom ts chip that when it shifted from 1st to 2nd it slammed into gear and i ran it like that for probably 4 months until i got my chip reburned.Then 1st to second shifted fine but now when it shift 1st to 2nd it will grab then a split second later it will grab again kinda like its slipping but like i said i havnt dealt with a bad tranny in about 7 years so i need some insight

02 F250 cc sb Lariet 4x4.
BTS Transmission installed/tuned by TSD
Autometer Ultralite II Trans,Pyro,Boost.
MBRP 4'' Cool Duals turboback with 5'' tips.
DIY tractionbars with Procomp mounts.
6637/zoodad intake,Drilled/slotted Rotors.
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post #2 of 17 (permalink) Old 11-12-2009, 12:43 PM Thread Starter
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Re: Slipping Trans??

Bump! just read that one of the weak points of the 4r100 is the torque converter..does anyone know anything about this? could this be the power loss i feal? Thanks

02 F250 cc sb Lariet 4x4.
BTS Transmission installed/tuned by TSD
Autometer Ultralite II Trans,Pyro,Boost.
MBRP 4'' Cool Duals turboback with 5'' tips.
DIY tractionbars with Procomp mounts.
6637/zoodad intake,Drilled/slotted Rotors.
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post #3 of 17 (permalink) Old 11-12-2009, 12:52 PM
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Re: Slipping Trans??

I'd put money on the torque converter.... at WOT if it hits second, locks up the converter then unlocks the converter it is the converter.

Matt Robinson
Gearhead Automotive Performance

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If you have nozzles that were Extrude honed over and over and over again. It will look like a porn stars ass.hole where the pintle is supposed to seal.
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post #4 of 17 (permalink) Old 11-12-2009, 01:07 PM Thread Starter
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Re: Slipping Trans??

Is that when the TC normaly locks..going into second?

02 F250 cc sb Lariet 4x4.
BTS Transmission installed/tuned by TSD
Autometer Ultralite II Trans,Pyro,Boost.
MBRP 4'' Cool Duals turboback with 5'' tips.
DIY tractionbars with Procomp mounts.
6637/zoodad intake,Drilled/slotted Rotors.
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post #5 of 17 (permalink) Old 11-12-2009, 01:13 PM
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Re: Slipping Trans??

Now I got a question for ya here matt I got a new Daaco triple disk and it it does it some times. My trans isnt weak but I dont know what causes the problem for it to unlock then relock at WOT.

1997 Ford F-250 Sleeper Edition
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post #6 of 17 (permalink) Old 11-12-2009, 01:17 PM Thread Starter
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Re: Slipping Trans??

how can you tell that the trans isnt weak and its just the TC...just good ole seat of pants or is there a way?

02 F250 cc sb Lariet 4x4.
BTS Transmission installed/tuned by TSD
Autometer Ultralite II Trans,Pyro,Boost.
MBRP 4'' Cool Duals turboback with 5'' tips.
DIY tractionbars with Procomp mounts.
6637/zoodad intake,Drilled/slotted Rotors.
Thomas7.3psd is offline  
post #7 of 17 (permalink) Old 11-12-2009, 02:14 PM
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Re: Slipping Trans??

Your programming locks immidiately at WOT as soon as it hits second. I lock them in second to save the clutch in the torque converter because it is much less strain on it in 2nd gear than locking for the first time in 3rd gear. The stock clutch can only take it for so long at power levels above stock.

When it acts up does it try to relock at some point if you stay in it or does it simply stay slipping the rest of the time?

I have a good used precision converter in the garage if you are interested.

Matt Robinson
Gearhead Automotive Performance

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Quote:
Originally Posted by PSDPlayer View Post
If you have nozzles that were Extrude honed over and over and over again. It will look like a porn stars ass.hole where the pintle is supposed to seal.
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post #8 of 17 (permalink) Old 11-12-2009, 02:22 PM Thread Starter
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Re: Slipping Trans??

Its hard for me to describe it, i dont know alot about it but i think it locks, it just feals like it hesitates for a split second before it locks but it may be slipping for all i know but it doesnt over rev or anything..how much for the used TC?

02 F250 cc sb Lariet 4x4.
BTS Transmission installed/tuned by TSD
Autometer Ultralite II Trans,Pyro,Boost.
MBRP 4'' Cool Duals turboback with 5'' tips.
DIY tractionbars with Procomp mounts.
6637/zoodad intake,Drilled/slotted Rotors.
Thomas7.3psd is offline  
post #9 of 17 (permalink) Old 11-12-2009, 02:53 PM
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Re: Slipping Trans??

Quote:
Originally Posted by Thomas7.3psd View Post
Its hard for me to describe it, i dont know alot about it but i think it locks, it just feals like it hesitates for a split second before it locks but it may be slipping for all i know but it doesnt over rev or anything..how much for the used TC?
It is guaranteed good and has about 7k on it and I'll let it go for 700 dollars.

Matt Robinson
Gearhead Automotive Performance

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Quote:
Originally Posted by PSDPlayer View Post
If you have nozzles that were Extrude honed over and over and over again. It will look like a porn stars ass.hole where the pintle is supposed to seal.
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post #10 of 17 (permalink) Old 11-12-2009, 03:48 PM
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Re: Slipping Trans??

Quote:
Originally Posted by mattr66 View Post
Your programming locks immidiately at WOT as soon as it hits second. I lock them in second to save the clutch in the torque converter because it is much less strain on it in 2nd gear than locking for the first time in 3rd gear. The stock clutch can only take it for so long at power levels above stock.

When it acts up does it try to relock at some point if you stay in it or does it simply stay slipping the rest of the time?

I have a good used precision converter in the garage if you are interested.
Yea mine locks for a split second then unlocks trys to lock and relocks but I am not going to be racing it so I am not to worried bout it and I usally dont ever run it wide open. But when something breaks in it I am going to a BTS.

1997 Ford F-250 Sleeper Edition
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