4R100 shifting questions - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 08-11-2010, 05:07 PM Thread Starter
DirtyMike
 
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4R100 shifting questions

Alright guys I have searched this forum for 3 days now and I cant find a straight answer for what is going on with my truck. 2001 F350 156000 miles. A few days ago the transmission started shifting hard from 1-2 only after I get to about 25mph or around 3000 rpms. When I let out of the pedal, it will shift and 2-3 and 3-od shifts are fine. This happened one time before about 4 months ago, and then all of a sudden now. I know I may need a rebuild but any help will be appreciated.


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2004 F250 KR CCSB FX4 - 4" Straight Pipe/Cold Air/EGR Delete/Coolant Filter/SG2
2001 F350 ECSB 4x4 7.3L/6637 INTAKE/4" MBRP TB - SOLD
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post #2 of 5 (permalink) Old 08-11-2010, 06:40 PM
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Re: 4R100 shifting questions

Check fluid level and quality. Any codes flashing at the trans shifter?

Seeing you have an 01, you may have the diode that is causing problems

01 Excursion 7.3L Powerstroke. Gauges with AIH Delete, AIS, CCV Mod, 4' MBRP, BTS Trans, 6.0L Trans Cooler and Intercooler, DP-Tuner F5 chip, ITP In Tank Mod and Boost Annihilator, Diesel Innovation's Regulated Fuel kit, BTS Big Oil system, GTP38R Turbo with 1.15 A/R housing and BPD Stage II AC injectors. Bilstein Shocks with U front and A Rear.
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post #3 of 5 (permalink) Old 08-12-2010, 02:21 PM Thread Starter
DirtyMike
 
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Re: 4R100 shifting questions

No flashing shifter light, but Im leaning towards the diode problem. My question is, does fixing that require a full rebuild?


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2004 F250 KR CCSB FX4 - 4" Straight Pipe/Cold Air/EGR Delete/Coolant Filter/SG2
2001 F350 ECSB 4x4 7.3L/6637 INTAKE/4" MBRP TB - SOLD
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post #4 of 5 (permalink) Old 08-12-2010, 02:25 PM
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Re: 4R100 shifting questions

Trans has to come apart sorry to say

2001 F-250 4X4 LARIAT Crew Cab,7.3, ZF6
GTX-4294r, Swamps 300/200%
couple other bolt ons

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post #5 of 5 (permalink) Old 08-12-2010, 02:45 PM
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Re: 4R100 shifting questions

Quote:
Originally Posted by gaf350 View Post
No flashing shifter light, but Im leaning towards the diode problem. My question is, does fixing that require a full rebuild?
It requires that the trans be removed and the offending parts be removed and replaced with better parts. So yes it does.

I guess the route I recommend depends on what you plan to do with the truck

If you are dumping it ASAP, don't do anything. If you must because it broke before you can dump it, get Aamco or whomever is cheaper.

If you plan to have NO, ZERO, NADA mods and plan to get a new truck in a year or two, get a Ford reman. They might not appreciate your mods and your warranty can be voided because of mods. BTDT.

If you plan to drive your truck into the ground, get a BTS. Why? Because while their warranty is 2 yrs, they have absolutely no limits on what you can do. After that 2 yrs is up, you pay for shipping and they fix it for free. To give you an idea, the TC will be replaced and it costs about $1000. Chances are you will break the trans AFTER the warranty of 2 or 3 yrs is up so this would be a good move.

01 Excursion 7.3L Powerstroke. Gauges with AIH Delete, AIS, CCV Mod, 4' MBRP, BTS Trans, 6.0L Trans Cooler and Intercooler, DP-Tuner F5 chip, ITP In Tank Mod and Boost Annihilator, Diesel Innovation's Regulated Fuel kit, BTS Big Oil system, GTP38R Turbo with 1.15 A/R housing and BPD Stage II AC injectors. Bilstein Shocks with U front and A Rear.
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