TC lock up thread

[Symon623]

Originally Posted by burf11

I have a similar problem with my truck. I don't think mine is completely unlocking like it seems others are. When it shifts to OD for about 10 MPH 50-55 I get a very slight shuddering. NO change in RPM just feels like I am on a bumpy road. It is worse closer to 50. Is this the same problem???

Originally Posted by dozer12216

Another issue that shows up in this area is a torque converter that cannot hold the torque and slips(shudders) for a few seconds. Sometimes this is result of ATF being dead and needing changing. However it does not take long to fail converter clutch. This happens most frequentlly with modded engines and the chip turned on. The general clue on this one is you are on the throttle some. These modded engines make tremendous torque in the 1600 -2200 RPM range that overpowers a stock converter with stock valve body. So a performance converter and valve body is generally a good bet as part of improved power upgrade path.

Yep, gettin a little of the shuttering too....... not the answer I was hopin for. I also get the unlock issue now (never did it before) and the shuttering is new too.

Changes?

New turbo alowing higher setting on the juice as well as an oil change. I really dont think my trans is stock cos it behaves quite well otherwise. No heat unless the converter stays out in OD.

Suggestions?

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Sy
02, QC, 4x4, Auto, LB, Edge J w/ A, HX35, Raptor LP w/ big line kit, Banks Monster, Airaid CAI, 4.10's, 4WDB and 33's.

[uber racing]

I just finished setting up my APPS and doing the ATS transmission wiring fix for eliminating the 4th gear hunt. However after doing both fixes my idle speed is @ 1400 RPM. My Initial APPS voltage was .446vdc. the tag on the sensor was .591vdc. I was attempting to get 1.2 - 1.5 vdc as suggested in a set up article on Geno's Garage. I followed the correct reset procedure for the APPS. I've driven the truck around a bit but it hasn't thrown any codes and hasn't adjusted the idle down on its own as yet.

Will this idle correct it self from a learning cycle? Or should I readjust the APPS voltage down?

[GreenMeanie]

I HAD the same problem, new batteries, terminals clean, I wrapped the ground wire from the alternator.... that worked for a while. Finally I bought this noise filter and it did the job for under $20, this is the route to go Dodge Ram Cummins 24V Truck Converter Clutch Cycling Repair.

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99 Cummins 4x4 automatic 4:10gears,magnaflo turbo back, Diablo power puck, K&N filter, dual pillar pod with fuel pressure & trany temp , CFM intake and a fass system

[uber racing]

I have a filter coming. Should be some time next week. I'm just wondering about the APPS voltage and idle speed.

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TST Power Max III with R46 Remote, Smarty Revo, ATS Trans, FASS Pump, MBRP 4" Turbo back, "J" Hook, Amsoil BHAF, Amsoil Dual remote By-Pass Filters, T/C Lock up Switch, Hi Idle Kicker.

[diggerdrew79]

Originally Posted by GreenMeanie

I HAD the same problem, new batteries, terminals clean, I wrapped the ground wire from the alternator.... that worked for a while. Finally I bought this noise filter and it did the job for under $20, this is the route to go Dodge Ram Cummins 24V Truck Converter Clutch Cycling Repair.

on that guys deal it describes my problems to a T but it sez only on 98 and 99 model years?? any advice on applying it to a 2001 ?

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2001 4 inch strait pipe out the back at a 45 turndown,airdog 150,K+N drop in,industrial VP, superchip microtuner, dirt roads are overrated

[GreenMeanie]

I don't know for sure, I would think it would work, any 01's out there know for sure?

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99 Cummins 4x4 automatic 4:10gears,magnaflo turbo back, Diablo power puck, K&N filter, dual pillar pod with fuel pressure & trany temp , CFM intake and a fass system

[81Charger]

Hi all, I just bought my '02. The truck came with a "diablo power puck" I think it's called. Not sure how much of a upgrade that is but I also get a shutter. I bought the truck to tow my race car & trailer which weighs about 10K. When I tow the trailer is when I really see the shutter, especially if I'm trying to stay at 70mph. If I drive the truck harder the problem isn't as noticeable.

From the earlier post that I read it sounds like I need a converter, which kind do you guys recommend. Is the power puck a good thing to leave in, I like the power.

I also have one other weird thing that the trans does. Sometimes it will not shift into 2nd until the RPM is like 2600 & other times it will shift normal. I've seen it shift late like this for up to a week but I've also seen it shift normal for a week. Any Ideas?

Thanks Glenn

[dozer12216]

81 Charger; Looks like it has been charged harder than it can stand. In addition the erratic 2nd gear shift is another sign of living in abuse lane to long.
If you are lucky, a tranny service with new fluid and band adjustment might buy you some time. Otherwise a performance converter and valve body along with tranny overhaul is upon you. LOL

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2000 Big Blue Beast 3500 SLT 2WD heavy hauling auto, stage 1 injectors, 232K miles and still growing.
Toys from .049 airplane to 1248 CI D8H dozer. Wanna play!

[Broke Down]

here is what your rpms will do when locking and unlocking.

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DUKE<-- 2000 4x4 3/4 ton ex cab lwb ATS converter,suncoast heavyduty rebuild kit,ATS valve body, edge EZ, straight piped, 3rd gen cromeclads, isspro pyro boost fuel, FASS , coaltrain 150's

[GreenMeanie]

81Charger, the power puck is OK at best, I have one and I like the little bit of extra power and fuel mpg, but I'm not a big hot rodder either, so it is all in what you are looking for

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99 Cummins 4x4 automatic 4:10gears,magnaflo turbo back, Diablo power puck, K&N filter, dual pillar pod with fuel pressure & trany temp , CFM intake and a fass system

[TxCTD0159]

so as yall guessed im in the same boat as everybody. BUT im on the wall now on doing the ats fix bc some of yall say it works and 2 others say it wont let you shift into od AND makes it idle @1400! is there a common mistake i should make sure i dont do?

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-Dakotah 2000 Dark Blue Dodge 2500 Auto 24v ummins 4x4
6'' Black Mitres/BHAF Intake/FASS 150/Quadzilla Adrenaline w/ Pulse/3'' Lift/35'' BFGs/16'' MB Wheels/Smoked Out/Tool Box/Silencer Ring MIA

[shadow494]

Tried the tc grounding switch and jumper, cleaned and greased the input plug on the tranny checked voltage to it...still no constant lockup... Shouldn't the switch keep the tc from locking up at all when it's not grounded? Any7 ideas?