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After reading through some of the archives, I found mention of a mod to the 2003 TCM's only and decided to see what it was about. This mod onlt comes into play at WOT, and it definitely firms up the shifts. The shifts are still not where I would like them so I will still do a Transgo 45RFE-HD2 kit either this fall or next spring. Now onto pics...
Find the TCM and connector   Pull the connector and plastic cover...   Remove the red pin holder  And remove pin #10  2003 Ram 2500 Quad Cab 4x4, Hemi, 5 speed auto, 3.73 gears and limited slip. |
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"Mark" Forum Manager Former Hemi truck owner  |
Great step-by-step... thanks!
______________________________________________________________________________ HTC.com web site HTC.com store HTC.com calendar HTC.com National map 2003 Hemi Ram - Supercharged. 520 HP, 14 mpg... traded in for a 2006 SRT8 Grand Cherokee - bone stock. 420 HP, 16 mpg... traded in for a 2007 BMW 335i - twin turbo. 325 HP, 33 mpg               |
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I got the procedure Courtesy of CentralTexHemi:
1)Disconnect battery 2)Remove the TCM connector by loosening the 8mm bolt (black plastic cover over wire bundle on passenger side firewall/inner fender corner). 3)Remove the plastic shroud over the connector wire bundle. Has 4 clips holding it on. 4)Locate pin #10 with the yellow wire/ green stripe. 5)Remove the red clip on the TCM side secureing the group of wires having pin #10. Be gentle, I found a small thin knife blade works well. Pry up a little on each corner of the clip at a time. 6)Once the red clip is removed, you will need a straight pin and a flash light. Using the flashlight, look down inside the connector where the red clip was and you will see a small tab holding each wire in place. Use the straight pin to pry the tab away from the wire slightly and at the same time push pin 10 wire into the connector then pull out. The wire should pull out fairly easy doing this step correctly. 7) Once out, replace the red clip, tape the end of pin 10 wire with electrical tape and bundle it on top of the wire bundle going into the connector. Replace the plastic shroud over the wire bundle then replace the connector into the TCM and tighten the 8mm bolt being careful not to over tighten. 8) Reconnect the battery 2003 Ram 2500 Quad Cab 4x4, Hemi, 5 speed auto, 3.73 gears and limited slip. |
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Does this only work on 03?
__________________________ Jack 'em up high, fat chicks can't climb!!! 04 Quad Cab Graphite Laramie, K & N CAI, Flowmaster super 40 dumped, SUPERCHIPS 3815, Taylor shorties w/NGK 5306, Amsoil fluids, de-badged, Line-X, 305/55R20 Nitto Terra Grapplers, torsion bars cranked, Bilstein shocks, Fire and Ice |
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"Mark" Forum Manager Former Hemi truck owner |
Yes... just the '03 models - the only year the PCM and TCM were separate units. ______________________________________________________________________________ HTC.com web site HTC.com store HTC.com calendar HTC.com National map 2003 Hemi Ram - Supercharged. 520 HP, 14 mpg... traded in for a 2006 SRT8 Grand Cherokee - bone stock. 420 HP, 16 mpg... traded in for a 2007 BMW 335i - twin turbo. 325 HP, 33 mpg |
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Was wondering what this does for the tranny.
Thanks ----------------------------------- '03 Ram 1500 4x4 Laramie Sport No Mods To the Truck. Not counting lights and siren. |
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good to see pictures I still cant figure out how to get that darn little red part out
have to go over grandpa's house I'm sure he has something useful to get it out 2003 HEMI RAM AEM brute force,5W-30 Royal Purple,Gibson Super Truck Exhaust, what next who knows mmwwwaahhhhaaahahahahaha!!!!!!!!  |
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Is this feature nulled when using the SC programmer?
What happens to functions of the truck? I.E. shifting/braking/throttle response/OD I thought this diabled ABS...  2003 4x4 w/SC intalled. patches This message has been edited. Last edited by: patches906,    |
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Off-Road Suspension Consultant  |
No The shifts get faster/firmer. ABS and other systems remain unaffected. '03 Black SLT QC SWB 4x4 Off-Road -- 35 x 12.50 Dick Cepek FCII's on 17 x 9 Centerline Dorsals -- AirAid Intake System w/ AMSOIL synthetic filter -- Comp 260 cam -- Manley springs, retainers, & pushrods -- JBA Cat-4ward mids -- Borla cat-back exhaust --Superchips -- Mark VIII e-fan w/ FK60 -- 8.2mm Taylors-- 180 deg t-stat -- AMSOIL -- Torsion bar lift (re-keyed) -- Bilstein 5125 shocks (BE5-6140-T5 front / BE5-6248-H5 rear) -- Hella Black Magics -- bunch of other stuff Coming soon: Rough Country X-Lift up front, Deaver progressive leaf springs in back, and longer Bilsteins all around. "An appeaser is one who feeds a crocodile, hoping it will eat him last." - Sir Winston Churchill HTC Titan killer   |
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Thanks Freeze Patches |
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ok guys
If I pull the wire and Pull a travel trailer doesn't it mess up the tranny??? because the torque could be too much for the tranny pulling a 21 ft traler that has a weight of 6400Lbs without water adn so on. what is the thought about this. thanks Henk What would a pilot do without a crewchief!!! _______________  |
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"Mark" Forum Manager Former Hemi truck owner |
The TCM mod affects the tranny's shift points at WOT (Wide Open Throttle) only... pulling a trailer should not be a problem.
______________________________________________________________________________ HTC.com web site HTC.com store HTC.com calendar HTC.com National map 2003 Hemi Ram - Supercharged. 520 HP, 14 mpg... traded in for a 2006 SRT8 Grand Cherokee - bone stock. 420 HP, 16 mpg... traded in for a 2007 BMW 335i - twin turbo. 325 HP, 33 mpg |
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Could you just cut the wire and seal up the ends?
Thanks, Keven 2003 Hemi Ram 3500 Dually 1999 Chrysler Town & Country 1999 Chrysler 300M 1969 Cuda FastBack 600 HP 440 1998 Harley Davidson Electraglide |
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President Kansas Chapter  |
Yes, but get the right wire, lol. I believe it's the yellow wire with the green stripe.  "Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it." - Lou Holtz Support a fellow members good cause. www.lexislamb.org   |
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