Converter lock up

[ROCK KRIES]

How should the converter lock up? My tranee shifts are quick and firm,but lock up seems to take a few seconds. Sort of like a slushbox feel. This is under normal throttle.
It has been like this since day one and I have never driven another auto to know if this is normal.

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THE ROCK/2001,4X4,3. 54 GEARS,QC,SB,AT,SPORT,CL,CAMPER PACKAGE,TRAILER PACKAGE,WHITE,MOPAR MOLDED SPLASH GUARDS,STEELHORSE NERF BARS,BEDRUG LINER,CAB HIGH CAP.

 

[WCrovo]

Sounds normal to me.

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2001 2500 tow, camper, SWB, ETH, Bright white.

 

[Scooby]

Install the DTT valve body - that'll get those shifts nice and crisp (including that last one - with a nice drop in RPMs)

 

[Bill Kondolay]

Rock,

The Chrysler transmission lockup system can be a little slow in activating. It is not because of the apply pressure but rather the release oil is slow in exhausting.

Chrysler does have an update for it that does apply to the 2000 Dodge Ram. Most of the 2001's that i've worked on it is actually rather responsive in applying.

Keep this in mind,

Just because you have 2001 Dodge Ram does
necessarily mean that the vb is a 2001.
It could be a 2000 vb. There is a technical bulletin on how to modify the seperator plate, but as far as i know this bulletin only applied to California model trucks.

You may want to check out Dave Fritz's website, (help me out here guys i dont know how to set up a link)or the actual website address.
___________
TX/Ram
Well said .

Bill
Diesel Transmission Technology


[This message has been edited by Bill Kondolay (edited 01-02-2001). ]

 

[TXRam]

Normal for stock auto's, but not the best thing for the lock-up/torque converter clutch. Kinda like riding your clutch on a manual. The longer it takes to lock-up, the more heat built and wear. The faster the lock-up, the less heat and wear on the transmission.

 

[ROCK KRIES]

Bill, Thanks for the advise, I will look into the valve body plate mod. My truck was made in March so yes it might be a 2000 VB. For now I will let off the pedal for a few seconds until it locks in.

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THE ROCK/2001,4X4,3. 54 GEARS,QC,SB,AT,SPORT,CL,CAMPER PACKAGE,TRAILER PACKAGE,WHITE,MOPAR MOLDED SPLASH GUARDS,STEELHORSE NERF BARS,BEDRUG LINER,CAB HIGH CAP.

 

[Mopar-muscle]

rock , letting off the pedal will not help , you have to have your foot in it so to speak , to get into lockup , when your driving along and you are in lockup and you let up just a bit to much , you feel the trans unlock , then you step on it again and it goes back into lockup , thats what will happen if tyou let up , it won't lock .

what you need to do is change your VB , and i hate to say it but that convetor also , i have changed them in my 2000 and i can tell you that it should have come form the factory like this ...

 

[Bill Kondolay]

#ad


[This message has been edited by Bill Kondolay (edited 01-04-2001). ]

[This message has been edited by Bill Kondolay (edited 01-04-2001). ]

 

[Fred Swanson]

ROCK KRIES, is this with the transmission out of OD, or are you in OD, and talking about the last shift?

Just curious. Lockup happens before OD, right Bill K. ?

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Fred Swanson
Co-Owner
Canyon State Components, LLC
www.canyonstatecomponents.com

'00 QC,SB,4x4,Auto,3. 54 w/LSD,Trailer Package, Tow Package, DTT's VB & TC

[This message has been edited by cscpusher (edited 01-04-2001). ]

 

[ROCK KRIES]

Fred, this is when it shifts into overdrive. There might be nothing wrong at all, I would just expect overdrive to shift quick and firm like the rest of the shifts. I called my five star and I have an appointment with the tranee guy Wednesday for a test drive. Looking at the different TSB,s it almost seems that if you have a problem or complaint that the seperator plate will be upgraded to one with the bigger hole. Like Bill said there are probably alot of trucks with the smaller hole plate built before Oct 2000. I never got the engine check light like the TSB said but I want to make sure mine is correctly shifting. Common thinking tells me that if overdrive shifts quick and firm the convertor will last hopefully longer.

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THE ROCK/2001,4X4,3. 54 GEARS,QC,SB,AT,SPORT,CL,CAMPER PACKAGE,TRAILER PACKAGE,WHITE,MOPAR MOLDED SPLASH GUARDS,STEELHORSE NERF BARS,BEDRUG LINER,CAB HIGH CAP.

 

[B.G. Smith]

The shift sequence of the 46/47re transmission is: OD switch off, 1,2,3, TC clutch lock up at 35 mph. OD switch on: 1,2,3,4 (which is OD) then TC clutch lock up at 45 mph, of course these lock up points are at moderate throttle. bg

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White 99 3500, QC, 3:55, auto. most options except leather, Line-X bed liner, fiberglass running boards Rancho 9000s, bug shield and window vents, black vented 5th wheel tailgate, 100 gal. aux. fuel tank.

 

[Fred Swanson]

After much testing after putting Bill K's TC and VB in, the shifts I feel are as follows on a 2000 and I am sure Bill K. can shed light here, because certain years had a different shift sequence:
OD off, 1,2,3 lockup
OD on, 1,2,3,lockup,OD

With Bill K's TC, lockup is very slight, like 75 RPM, so OD is very easy to distinguish. And under light throtle, OD is a bit slow, when more pedal is applied, it shifts smoother and quicker.

Very noticable going into OD.

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Fred Swanson
Co-Owner
Canyon State Components, LLC
www.canyonstatecomponents.com

'00 QC,SB,4x4,Auto,3. 54 w/LSD,Trailer Package, Tow Package, DTT's VB & TC

[This message has been edited by cscpusher (edited 01-04-2001). ]

 

[KDRABIK]

I'm glad(unfortunately) to see that others have issues with lockup during upshift. I have a '01 built in early Dec'00, and took the truck in for service due to concern regarding the delayed shift from 3rd to 4th. Depending on the level of throttle, upshift would be delayed significantly, resulting in rpms sometimes in the range of 2700+(especially when merging with interstate traffic). Is this normal? The "5*" dealer stated the TSB on file only referred to 2000 models, so you know the rest. Should I push the issue again, or just wait until something goes wrong? Any advice would be appreciated.

[This message has been edited by KDRABIK (edited 01-05-2001). ]

 

[LSMITH]

My TC lockup in OD is slow also. It takes 1-2 seconds with more throttle taking longer than light trottle. To make matters worse I can slip the TC clutches at will in OD with the hard right foot. I only have 50k on the truck so I am pretty disappointed. transmission upgrades are in the immediate future for me.

 

[B.G. Smith]

Bill K, the TSB is 00/21-08-00, can be located at http://www.ecpe.vt.edu/~dfritz/ram.html or html ;//www.ecpe. vt. edu/~dfritz/technical/TSB00/21-08-00.html


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White 99 3500, QC, 3:55, auto. most options except leather, Line-X bed liner, fiberglass running boards Rancho 9000s, bug shield and window vents, black vented 5th wheel tailgate, 100 gal. aux. fuel tank.

[This message has been edited by B. G. Smith (edited 01-04-2001). ]

 

[B.G. Smith]

Don't mean to be agumenative but if you have 1-2-3-lockup then OD, you definitely have something wrong with your transmission if is a 46/47RE. bg

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White 99 3500, QC, 3:55, auto. most options except leather, Line-X bed liner, fiberglass running boards Rancho 9000s, bug shield and window vents, black vented 5th wheel tailgate, 100 gal. aux. fuel tank.

 

[TXRam]

B. G. 's correct. Lock-up is always the last "shift".

 

[Steve G]

Mine before and after DTT's TC&VB has always been 1,2,3,lockup,OD. I agree that lockup now is hardly noticeable.

Steve

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Y2K 3500 SLT+ 4X2,auto,3. 55,VA,275s,PS mod/elb,K&N,DTT TC&VB,SPA Boost/ETG&Tran Temp/Pres,JRE 4" exhaust,Mag-Hytec Trans Pan,Roadmaster Susp,Rhino-liner,Eagle Series 58 Wheels

 

[Bill Kondolay]

Transmission Shift patterns are as follows:

1999- EARLIER RAMS

1-2-3-3RD LOCK-UP,TC UN-LOCK,
shift into od
then back into lock-up

Some of you guys will notice this on your tach. ie)When merging on to the highway the tach rises slightly as its going into od,that is the tc clutch un-locking as it is going into od, and then after the shift to od is completed the tc will then re-engage lock-up.

This is the (PCM)power control module controlling the od shift and the tc clutch circuits. This is part of Dodge's software programming.

2000 -2001 Dodge Rams,

The shift pattern on these trucks, is different in that the (PCM)allows a shift from 3rd gear locked up to 4th gear locked up without dis-engaging the tc clutch .

Some of the 1999 Dodge rams have the same shift patterns as the 2000-2001 Dodge rams.
I have personally road tested 2 trucks like this. I have a guy on my web site with a 1999 Dodge ram that also has this shift pattern. I never actually looked at the production date on the 99 Rams with this shift pattern.

SHIFT PATTERN 2000-2001

1-2-3-3rd lock-up- 4th lock-up
Now keep in mind:
The tps can affect the tc clutch application.
The harder the acceleration can determine whether the tc remains locked or un-locked.

The shift patterns described above are with (light to moderate conditions ,70% or less of throttle position)

Bill
Diesel Transmission Technology

 

[LSMITH]

My transmission has never locked the TC in third unless I have the OD turned off. Is this the reflash that I have read about? I have gone through the gears at every possible throttle position too so I know that isn't my problem. Any ideas? Thanks up front.