2002 TC transmission

I have a 2002 TC with 30200 miles on it. I just took it in to the dealer to fix a power passenger sliding door that wouldn't power open or close. They flashed the computer modules and fixed the door.

When I was picking up the car fromthe dealer, I put the gear in reverse, and the car just revved. I put it in park, then in reverse again, and it went in reverse. Now, occassionally, happened 4-5 times already in over 24 hrs, around 10-15 mpg accelerating, the tranny shudders. Does not happen all the time.

Do you think the computer has anything to do with it? Any one has any experience? I'm going to bring it in anyway, but I would like to know what it may be before I go in.

Thanks,

before you take it in, check the level and the color of your fluid, at 30,000 miles, if you haven't changed the fluid already, now's a good time to do that.

Thanks,
What color should the fluid be? I did have the trans fluid changed in Nov (2 months ago), though not at a dealer. Dealer cost $150 vs. Auto Center's $80. I do change the fluid every 15K or so.
Could it be gas line?

The fluid should be red in color. Now that you mentioned these symptoms, it sounds like the shop you went to didn't use the correct fluid for newer Chrysler vehicles. They're supposed to use Mopar ATF+4, chances are the shop you went to used either Mopar ATF+3 or 7176. Making a long story short, using anything else than the approved Mopar ATF+4 will cause transmission issues such as hard shifting, delayed engagement, torque converter shudder, etc. Go back to the dealer or to that place and ask what fluid did they put in your transmission.

Here's the TSB for the transmissions fluid; might come in handy if you want to prove a point:

NUMBER: 21-006-01

GROUP: Transmission

DATE: Jun. 29, 2001

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 21-16-99, DATED OCTOBER 22, 1999, WHICH SHOULD BE REMOVED FROM YOUR FILES AND NOTED IN THE 1999 TECHNICAL SERVICE BULLETIN MANUAL (PUBLICATION NO. 81-699-00004). THIS IS A COMPLETE REVISION AND NO ASTERISKS HAVE BEEN ADDED TO HIGHLIGHT REVISIONS.
SUBJECT:
Automatic Transmission Fluid Usage ATF+4 (Type 9602)

MODELS:

1989 - 1995 (AA) Spirit/Acclaim/Lebaron Sedan

1989 - 2002 (AB) Ram Van/Wagon

1989 - 1993 (AC) Dynasty/New Yorker/New Yorker Salon

1989 - 1993 (AD) Ram Truck

1989 - 1994 (AG) Daytona

1989 (AH) Lancer/Lebaron GTS

1989 - 1995 (AJ) Lebaron Coupe/Lebaron Convertible

1989 - 1990 (AK) Aries/Reliant

1989 - 1990 (AL) Horizon/Omni

1989 (AM) Diplomat/Gran Fury/New Yorker Fifth Avenue

1989 - 2002 (AN) Dakota

1989 - 1994 (AP) Shadow/Sundance

1990 - 1991 (AQ) Maserati

1990 - 1993 (AY) Imperial/New Yorker Fifth Avenue

1994 - 2002 (BR/BE) Ram Truck

1998 - 2002 (DN) Durango

2002 (DR) Ram Truck

1995 - 2000 (FJ) Sebring/Avenger/Talon

2000 (GS) Chrysler Voyager (International Market)

1995 - 2000 (JA) Cirrus/Stratus/Breeze

2001 - 2002 (JR) Sebring Sedan & Convertible/Stratus Sedan

1996 - 2000 (JX) Sebring Convertible

2002 (KJ) Liberty

1993 - 2002 (LH) Concorde/Intrepid/Vision/LHS/New
Yorker/300M

1989 - 1992 (MJ) Commanche

2000 (NS) Town & Country/Caravan/Voyager

1995 - 2002 (PL) Neon

2002 (PG) PT Cruiser (International Markets)

2001 - 2002 (PT) PT Cruiser

1997 - 2002 (PR) Prowler

2001 - 2002 (RG) Chrysler Voyager (International Markets)

2001 - 2002 (RS) Town & Country/Caravan/Voyager

1997 - 2002 (TJ) Wrangler

2001 - 2002 (WG) Grand Cherokee (International Markets)

1999 - 2002 (WJ) Grand Cherokee

1989 - 1995 (YJ) Wrangler

1996 - 1998 (ZG) Grand Cherokee (International Markets)

1993 - 1998 (ZJ) Grand Cherokee/Grand Wagoneer

NOTE :THIS BULLETIN APPLIES TO ALL VEHICLES EQUIPPED WITH CHRYSLER AUTOMATIC TRANSMISSIONS EXCEPT 1999 AND EARLIER MINIVANS.

DISCUSSION:

A new transmission fluid (ATF+4(R) - Type 9602) has been developed and is being used as factory fill for all vehicles with Chrysler automatic transmissions. Until now, vehicles originally filled with ATF+2 or ATF+3 were to be serviced with ATF+3. Effective immediately, it is recommended that all vehicles with Chrysler automatic transmissions except for 1999 and earlier minivans be serviced with ATF+4(R). ATF+3 should continue to be used for 1999 and earlier minivans because of the potential for torque converter shudder during break in. For all other applications the ATF+4(R) fluid offers significant benefits as outlined below.
NOTE :ATF+4(R) MUST ALWAYS BE USED IN VEHICLES THAT WERE ORIGINALLY FILLED WITH ATF+4(R).

NOTE :SERVICE INTERVALS DO NOT CHANGE. THE SERVICE INTERVAL CURRENTLY IN EFFECT FOR A GIVEN VEHICLE SHOULD CONTINUE TO BE FOLLOWED.

NOTE :ATF+4(R) IS COMPATIBLE WITH ATF+3 AND CAN BE USED TO TOP OFF VEHICLES THAT CURRENTLY HAVE ATF+2 OR ATF+3. DO NOT USE ATF+2 OR ATF+3 TO TOP OFF VEHICLES THAT HAVE ATF+4(R) FLUID.

BENEFITS
^ Better anti-wear properties

^ Improved rust/corrosion prevention

^ Controls oxidation

^ Eliminates deposits

^ Controls friction

^ Retains anti-foaming properties

^ Superior properties for low temperature operation

FLUID COLOR

Mopar ATF+4(R) is a World Class Fluid having exceptional durability. However, the red dye used in ATF+4°R is not permanent; as the fluid ages it may become darker or appear brown in color. ATF+4(R) also has a unique odor that may change with age. With ATF+4(R) fluid, color and odor are no longer indicators of fluid condition and do not support a fluid change.