TC lock up thread - Dodge Cummins Diesel Forum
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

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post #1 of 850 (permalink) Old 07-14-2009, 07:57 PM Thread Starter
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TC lock up thread

guys i want to put together a few things to help our members out. we have a lot of people having lock up issues lately. i plan to put something together in the troubleshooting thread. if there is a vendor that has a product on the forum and you have used it please comment and post a link. if anyone has a pic of a wiring diagram or anything like this please post. thanks guys

link to one type of fix

https://www.cumminsforum.com/forum/98...r-install.html

[COLOR="Red"]HI GUYS: I HAVE COPIED THE ENTIRE THREAD INTO A "WORD.DOC" AND WILL FORWARD TO YOUR EMAIL ADDRESS UPON REQUEST. IT WILL BE EASIER TO READ. UNFORTUNATELLY THE FORMATTING AND INDIVIDUAL POSTER WAS LOST. YOU CAN TRACK THE POSTER BY LOOKING AT ORGINAL POST.
AGAIN THERE IS NO ONE FIX CURES ALL.
THANKS,
DOZER12216[
/COLOR]



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Last edited by dozer12216; 12-22-2011 at 12:58 AM. Reason: Add statement
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post #2 of 850 (permalink) Old 07-15-2009, 09:50 AM
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Not really a product as such, but I did the Suncoast APPS rewire and it took care of my converter lock-up issues.
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post #3 of 850 (permalink) Old 07-15-2009, 06:38 PM
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Wrap the black and tan wire going from the alternator to the passenger battery in aluminum foil. Solved the problem on my stock tranny. When I got my dtt I got their noise filter and that solved the problem permanently.

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post #4 of 850 (permalink) Old 07-16-2009, 05:12 PM
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Don't beleive there is a one fix cures all repair. Suggest starting with grounds and power connections. Clean rust and seal with grease.
Next have batteries individually tested at parts store and have alternator bench tested. A inspection of brushes for grease on slip rings would be in order while off.
Try shielding the wiring at alternator. Wrap aluminim foil around wiring for 18 inches of so, back toward engine. Taking tape and couvlute off and wraping alternator wires (3)with very small wire for 18 inches or so and then ground this shielding wire. Do Not short the shielding wire to alternator wiring. You can now rewap the convlute for nice apperance.
Some other items of intrest. APPS reset mayh be of benefit. Killing memory by disconneting all battery terminals and toughing a positive lead to a negative. You are shorting the wiring, NOT the batteries. This kills memories and fault codes.
A poorly adjsusted brake switch or erratic speed sensor need mentioning as a possibility.
A condenser (radio supression condenser from old Chrysler ignition coil) housing mounted to alternator frame with the lead connected to alt. output terminal is effective in reducing alternator stator wiring imbalance and internal condenser issues.
These are very low cost repairs and have been effective. The tranny specialist also offer various supression fixes and rewiring kits, but are expensive in most cases. Some have success with kits and some don't seem to, is my take on them.
A worn out torque converter may be the culprit also.

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post #5 of 850 (permalink) Old 07-16-2009, 05:17 PM Thread Starter
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Quote:
Originally Posted by dozer12216 View Post
Don't beleive there is a one fix cures all repair. Suggest starting with grounds and power connections. Clean rust and seal with grease.
Next have batteries individually tested at parts store and have alternator bench tested. A inspection of brushes for grease on slip rings would be in order while off.
Try shielding the wiring at alternator. Wrap aluminim foil around wiring for 18 inches of so, back toward engine. Taking tape and couvlute off and wraping alternator wires (3)with very small wire for 18 inches or so and then ground this shielding wire. Do Not short the shielding wire to alternator wiring. You can now rewap the convlute for nice apperance.
Some other items of intrest. APPS reset mayh be of benefit. Killing memory by disconneting all battery terminals and toughing a positive lead to a negative. You are shorting the wiring, NOT the batteries. This kills memories and fault codes.
A poorly adjsusted brake switch or erratic speed sensor need mentioning as a possibility.
A condenser (radio supression condenser from old Chrysler ignition coil) housing mounted to alternator frame with the lead connected to alt. output terminal is effective in reducing alternator stator wiring imbalance and internal condenser issues.
These are very low cost repairs and have been effective. The tranny specialist also offer various supression fixes and rewiring kits, but are expensive in most cases. Some have success with kits and some don't seem to, is my take on them.
A worn out torque converter may be the culprit also.
correct dozer this is useful info to everyone. this is why i wanted different people to post their ways things work. a variety of solutions for multiple problems is needed. thanks dozer



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post #6 of 850 (permalink) Old 07-16-2009, 05:28 PM
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Sure there's a fix to it.

https://www.cumminsforum.com/forum/98...owto-pics.html

Cheap, simple, and it works.
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post #7 of 850 (permalink) Old 07-16-2009, 07:22 PM
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I had problems also and the combination of wrappin the alternator wire ,apps reset,and cleanin gounds have cured mine SO FAR.but thanks for the posts
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post #8 of 850 (permalink) Old 07-19-2009, 11:48 PM
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have your batteries checked. they have to be in good condition. even if your truck starts fine one could be marginal and cause problems. batteries are big noise filters. electrical noise is what causes these trans.tc problems. this is what i as told by Bill owner of DTT transmissions. it worked for me, it might for you. also a noise filter from DTT.

98.5 24 valve dtt trans. 4" exh. guages edge ez afe filter bd exh. brake
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post #9 of 850 (permalink) Old 07-20-2009, 01:23 AM
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here is the ATS link
https://www.atsdiesel.com/PDF/120505...%2047%20RE.pdf

and the suncoast (click on the down load instructions)
Sun Coast 24 Valve APPS Rewire Instruction Download

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post #10 of 850 (permalink) Old 07-21-2009, 11:45 PM
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the instructions from the ats link don't work on my truck. The only thing that it did was keep my transmission from going into overdrive...I'm thinking about trying the suncoast one tomorrow to see if it works.

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post #11 of 850 (permalink) Old 07-25-2009, 02:24 AM
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Quote:
Originally Posted by dieselstud27 View Post
the instructions from the ats link don't work on my truck. The only thing that it did was keep my transmission from going into overdrive...I'm thinking about trying the suncoast one tomorrow to see if it works.
Well, I am in the same boat. Tranny wont shift into 4th after doing the ATS fix. Any other ideas out there, before I drop the big bucks and run it into the shop.

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post #12 of 850 (permalink) Old 07-25-2009, 02:48 AM
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My TC Lockup issue is solved by applying dielectric grease to my alternator harness plug and replugging back in. Don't know why, but it works every time. I keep my terminals clean also.

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