1990 transmission problem
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1990 transmission problem
I have a 1990 dodge caravan with a 3.3 engine. It has started shuddering while driving it on the road. This happens when it is in high gear. When it is in lower gears it runs fine. I checked the fluid and it was low but after putting the correct amount in it it still shudders in high gear. Any answers would be great. Thanks
Here is a TSB for a shudding problem.
SUBJECT: Vehicle Shudder During Torque Convertor EMCC (Lock-up) Operation/Diagnostic Trouble Code 38
NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 41TE OR 42LE AUTOMATIC TRANSMISSION.
SYMPTOM/CONDITION:
NOTE: DIAGNOSTIC TROUBLE CODE (DTC) 38 (TORQUE CONVERTER CONTROL OUT OF RANGE) MUST BE PRESENT FOR THIS BULLETIN TO APPLY. IF DTC 38 IS NOT PRESENT AND THE VEHICLE IS A 1989-95 MODEL, REFER TO TECHNICAL SERVICE BULLETIN 18-24-95 DATED JUNE 24, 1995 AND PERFORM AS NECESSARY. IF DTC 38 IS NOT PRESENT AND THE VEHICLE IS A 1996 MODEL, REFER TO TECHNICAL SERVICE BULLETIN Vehicle shudders during full lock-up Electronically Modulated Convertor Clutch (EMCC) operation and DTC 38 is present. Full lock-up EMCC is indicated by 3LU or 4LU on the DRB III RPM display screen.
DIAGNOSIS:
This shudder condition can be the result of leakage in the transmission front pump caused by a worn pump bushing. It is sometimes accompanied by pump whine.
Using the Mopar Diagnostic System (MDS) or the Scan Tool (DRB III) with the appropriate Diagnostic Procedure Manual, verify all engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes are present, record them on the repair order and repair as necessary before proceeding further with this bulletin. If DTC 38 is present, perform the Repair Procedure.
PARTS REQUIRED:
Quantity Part No. Description
AR (1) 04626644 Torque Converter Assembly, 3.3L or 3.5L Engine & 42LE
AR (1) 04741659 Pump & Reaction Shaft Support Assembly, 42LE
AR (1) 04883272 Seal & Gasket Package - Trans. Oil Pump Housing, 42LE
AR (1) 04796730 Package, Oil Filter, 42LE
AR (1) 04796384 Torque Converter Assembly, 95 FJ/JA 2.0L or 2.5L Engine & 41TE or 96 FJ/JA 2.0L Engine & 41TE
AR (1) 04778031 Torque Converter Assembly, 95 JA 2.4L Engine & 41TE or 96 FJ 2.5L Engine & 41TE or 96 JX/GS/NS 2.4L or 2.5L Engine & 41TE
AR (1) R4636922 Torque Converter Assembly, 89-90 3.0L Engine & 41TE
AR (1) 04773766 Torque Converter Assembly, 91-95 3.0L Engine & 41TE
AR (1) 04797476 Torque Converter Assembly, 3.3L or 3.8L Engine & 41TE
AR (1) 04567869 Pump & Reaction Shaft Support Assembly, 41TE
AR (1) 04883260 Seal & Gasket Package - Trans. Oil Pump Housing, 41TE
AR (1) 04864505 Package, Oil Filter, 41TE
AR 04798233 Fluid, Mopar Automatic Transmission Type 7176
REPAIR PROCEDURE:
This bulletin involves replacing the transmission front pump assembly and the transmission torque converter with one that has bonded converter clutch friction material and verifying the Transmission Control Module (TCM) part number.
Following the procedures outlined in the appropriate Service Manual, replace the torque converter and the transmission front pump assembly with the parts identified in the Parts Required section of this bulletin.
Perform the transmission oil cooler and lines reverse flushing and flow check procedure as outlined in the appropriate Service Manual.
Verify the TCM is the appropriate part number listed below : PART NO. YEAR AND MODEL APPLICATION
4686606 1993 - 1995 AA, AC, AG, AJ, AP, AS, ES, & AY
4796121 1989 - 1991 AA, AC, AG, AJ, & AS with 3.0L Engine
4796122 1990 - 1991 AC, AS, & AY with 3.3L & 3.8L Engine
4796123 1992 AA, AC, AG, AJ, & AS with 3.0L Engine
4796124 1992 AC, AS, ES, & AY with 3.3L & 3.8L Engine
4606271 1996 JA/JX with Autostick
4606270 1996 JA/JX without Autostick
4606485 1996 LH with Autostick
4606284 1996 LH without Autostick
5269726 1995 FJ
4606105 1995 JA with 2.5L Engine
4797708 1993 - 1995 LH without Auxiliary Transmission Oil Cool
4606109 1995 LH with Auxiliary Transmission Oil Cooler
5293010 1996 FJ
4882462 1996 NS/GS without Transmission Range Sensor (TRS)
4686739 1996 NS/GS with TRS
SUBJECT: Vehicle Shudder During Torque Convertor EMCC (Lock-up) Operation/Diagnostic Trouble Code 38
NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 41TE OR 42LE AUTOMATIC TRANSMISSION.
SYMPTOM/CONDITION:
NOTE: DIAGNOSTIC TROUBLE CODE (DTC) 38 (TORQUE CONVERTER CONTROL OUT OF RANGE) MUST BE PRESENT FOR THIS BULLETIN TO APPLY. IF DTC 38 IS NOT PRESENT AND THE VEHICLE IS A 1989-95 MODEL, REFER TO TECHNICAL SERVICE BULLETIN 18-24-95 DATED JUNE 24, 1995 AND PERFORM AS NECESSARY. IF DTC 38 IS NOT PRESENT AND THE VEHICLE IS A 1996 MODEL, REFER TO TECHNICAL SERVICE BULLETIN Vehicle shudders during full lock-up Electronically Modulated Convertor Clutch (EMCC) operation and DTC 38 is present. Full lock-up EMCC is indicated by 3LU or 4LU on the DRB III RPM display screen.
DIAGNOSIS:
This shudder condition can be the result of leakage in the transmission front pump caused by a worn pump bushing. It is sometimes accompanied by pump whine.
Using the Mopar Diagnostic System (MDS) or the Scan Tool (DRB III) with the appropriate Diagnostic Procedure Manual, verify all engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes are present, record them on the repair order and repair as necessary before proceeding further with this bulletin. If DTC 38 is present, perform the Repair Procedure.
PARTS REQUIRED:
Quantity Part No. Description
AR (1) 04626644 Torque Converter Assembly, 3.3L or 3.5L Engine & 42LE
AR (1) 04741659 Pump & Reaction Shaft Support Assembly, 42LE
AR (1) 04883272 Seal & Gasket Package - Trans. Oil Pump Housing, 42LE
AR (1) 04796730 Package, Oil Filter, 42LE
AR (1) 04796384 Torque Converter Assembly, 95 FJ/JA 2.0L or 2.5L Engine & 41TE or 96 FJ/JA 2.0L Engine & 41TE
AR (1) 04778031 Torque Converter Assembly, 95 JA 2.4L Engine & 41TE or 96 FJ 2.5L Engine & 41TE or 96 JX/GS/NS 2.4L or 2.5L Engine & 41TE
AR (1) R4636922 Torque Converter Assembly, 89-90 3.0L Engine & 41TE
AR (1) 04773766 Torque Converter Assembly, 91-95 3.0L Engine & 41TE
AR (1) 04797476 Torque Converter Assembly, 3.3L or 3.8L Engine & 41TE
AR (1) 04567869 Pump & Reaction Shaft Support Assembly, 41TE
AR (1) 04883260 Seal & Gasket Package - Trans. Oil Pump Housing, 41TE
AR (1) 04864505 Package, Oil Filter, 41TE
AR 04798233 Fluid, Mopar Automatic Transmission Type 7176
REPAIR PROCEDURE:
This bulletin involves replacing the transmission front pump assembly and the transmission torque converter with one that has bonded converter clutch friction material and verifying the Transmission Control Module (TCM) part number.
Following the procedures outlined in the appropriate Service Manual, replace the torque converter and the transmission front pump assembly with the parts identified in the Parts Required section of this bulletin.
Perform the transmission oil cooler and lines reverse flushing and flow check procedure as outlined in the appropriate Service Manual.
Verify the TCM is the appropriate part number listed below : PART NO. YEAR AND MODEL APPLICATION
4686606 1993 - 1995 AA, AC, AG, AJ, AP, AS, ES, & AY
4796121 1989 - 1991 AA, AC, AG, AJ, & AS with 3.0L Engine
4796122 1990 - 1991 AC, AS, & AY with 3.3L & 3.8L Engine
4796123 1992 AA, AC, AG, AJ, & AS with 3.0L Engine
4796124 1992 AC, AS, ES, & AY with 3.3L & 3.8L Engine
4606271 1996 JA/JX with Autostick
4606270 1996 JA/JX without Autostick
4606485 1996 LH with Autostick
4606284 1996 LH without Autostick
5269726 1995 FJ
4606105 1995 JA with 2.5L Engine
4797708 1993 - 1995 LH without Auxiliary Transmission Oil Cool
4606109 1995 LH with Auxiliary Transmission Oil Cooler
5293010 1996 FJ
4882462 1996 NS/GS without Transmission Range Sensor (TRS)
4686739 1996 NS/GS with TRS