Tcc? O/d? Lock Unlock Fix? - Dodge Cummins Diesel Forum
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View Poll Results: TCC OR O/D Locking Unlocking At Highway Speeds
TPS Cleaning or Replaced 37 23.57%
Battery Cable cleaning 37 23.57%
Replaced Battery's 8 5.10%
Valve Body 9 5.73%
T/C 14 8.92%
Valve body and T/C 19 12.10%
PCM Re-flash 7 4.46%
DTT Volt regulator 3 1.91%
Noise Filter 28 17.83%
Alternator 6 3.82%
Or Othere 46 29.30%
Multiple Choice Poll. Voters: 157. You may not vote on this poll

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post #1 of 27 (permalink) Old 07-08-2007, 08:52 PM Thread Starter
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Tcc? O/d? Lock Unlock Fix?

This is a poll to see what helped you fix your TCC? O/D? LOCK UNLOCK concern. I see a lot of post here asking about this but not a leading fix for it so I thought I would do a poll for them that are asking. With that said what fixed your TCC, O/D Locking Unlocking concern?

Thanks for taking the time to vote:thumbsup



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Last edited by pro99; 07-08-2007 at 11:32 PM.
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post #2 of 27 (permalink) Old 07-09-2007, 06:13 PM
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The only thing that worked for me was the Happi box filter. I tried everything else and the dealership also gave up on it. I tried the filter and its been great for the past couple of years.

'99 3500 QC SLT Laramie,4x4, Bluechip vp Suncoast VB, TSC 89% TC, DDP stg 2 inj, Edge w/Attitude, Raptor lp, Glacier F/W Separator, 4" Str8t Exhaust, High Flow Intake, Ats manifold, 62/14/65turbo. Amsoil dual filters. Dual Fans. ARB locker. Non 53. Original owner.
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post #3 of 27 (permalink) Old 07-09-2007, 06:56 PM
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Definitely try a Noise Isolator, we sell tons of them and for the price it is definitly the thing to try first. 8 out of 10 times it is the fix for us.

BD Part Number 1300030
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post #4 of 27 (permalink) Old 07-09-2007, 10:23 PM
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govenor pressure sensor and solenoid. (on valve body) about $130 from dealer

06 2500 quad cab long bed 4x4 auto ppe recon bully dog gauges MBRP Cool Duals afe stage2
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post #5 of 27 (permalink) Old 07-09-2007, 10:28 PM
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noise filter worked for me...here is a website with further information about it and instructions on how to fix it urself Dodge Ram Cummins 24V Truck Converter Clutch Cycling Repair.

'06 Megacab 4x4
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post #6 of 27 (permalink) Old 07-19-2007, 03:44 PM
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Quote:
Originally Posted by dodge325 View Post
govenor pressure sensor and solenoid. (on valve body) about $130 from dealer
i take it you have had the problem before

2003 crew cab chevy 2500hd 4x4 dmax charcoal grey 85,000 32" procomp xt's and efi live tuned by duramaxin14 13.97 @99mph on a stock trany
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yusta have a dodge but we went rollin
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proverbs 13:3 :thumbsup
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post #7 of 27 (permalink) Old 07-22-2007, 06:22 PM
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Wrapped neg cable from alternator. no more interferance!
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post #8 of 27 (permalink) Old 07-23-2007, 08:21 PM
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All I did was take the ground connector to the PCM on the firewall apart and clean the connection, No problems for almost 2 years. I was told this trick by a friend that works on the heavy line at a Dodge Dealership in Phoenix AZ. 98 24 Valve 1 ton Dually
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post #9 of 27 (permalink) Old 08-06-2007, 11:05 PM
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Quote:
Originally Posted by keithmanogue View Post
All I did was take the ground connector to the PCM on the firewall apart and clean the connection, No problems for almost 2 years. I was told this trick by a friend that works on the heavy line at a Dodge Dealership in Phoenix AZ. 98 24 Valve 1 ton Dually
Yep, worked for me too. Ran a ground from the PCM to the negative terminal and wrapped the wire from the alternator to the battery with that aluminum furnace tape. So Far so good!

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post #10 of 27 (permalink) Old 09-07-2007, 08:57 PM
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Originally Posted by DPiper View Post
Yep, worked for me too. Ran a ground from the PCM to the negative terminal and wrapped the wire from the alternator to the battery with that aluminum furnace tape. So Far so good!
What part of the pcm did you run the ground from.

1996 3500 ext.cab 2wd,modified trans.&torque converter,HTB2 62/14 turbo,#10 fuel plate,4"exhaust,autometer pyro&boost gauges.
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post #11 of 27 (permalink) Old 09-10-2007, 04:57 PM
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I ran the ground from the PCM case. I loosened a screw from the rectangular that attaches to the firewall and tapped in there. It's still working. Not sure which one fixed it, but it did.

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post #12 of 27 (permalink) Old 09-15-2007, 01:39 AM
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i did it ALL except buying a noise filter from an aftermarket source

Remove engine harness and install braided noise sheilding on TPS wires from TPS to PCM and on Trans control wires from Trans to PCM. (this precludes the need for a noise filter since the braided sheilding prevents the noise from entering the wires intially)

Ground PCM case w/ 8awg fine-strand cable to negative battery ground

Replace Ground cables on battery

Replace Gov Press sensor and Gov solenoid

Replace trans fluid and filter

Replace Output shaft speed sensor

Remanufacture PCM

Rebuild Generator.

my Gov sensor/solenoid were faulty and that got my PCM out of limp and allowed it to shift normally. however, nighttime driving made the TC lockup, OD/D shifting problem apparant. i knew it was dependant on electrical load since it only happened at night, when running the lighting increased the Generator load dramatically. turns out the brush in the generator was worn down to the shoe and was arcing out on the armature. this acring created RFI which was introduced into the harness and the PCM via inductance. replacing this brush (even though my truck produced 14v while running and showed no evident signs of failure) solved my shifting problems 100% . my truck is now shifts as strongly, predictably and reliably as it did when it first rolled of the Lot.

Moral of the story; REBUILD YOUR GENERATOR FIRST, before buying ANYTHING else.

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2001.5 3500 Laramie, qclb, 4wd, drw auto, goose, AirRaid

Last edited by flubyux2; 09-15-2007 at 01:49 AM.
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