For 1990-2009 cars

#### Torque Converter Replacement Guide

Condition | Action
--- | ---
Fluid

- Transmission Fluid Oxidized/Discolored

• | No metal debris

• | Clutch fiber material

Do not Replace Torque Converter

Refer to Transmission Fluid Check

- Transmission Fluid Contaminated with engine coolant/oil

Replace Torque Converter

- Transmission Fluid Contaminated with sludge/metal particles

• | Replace Torque Converter if:

- | Pump Damage

- | Drive sprocket support damage

- | Turbine/stator shaft damage

- | No damage found in transmission

• | Do not replace Torque Converter for other transmission component damage

- Fluid Leaks From Torque Converter

• | Perform powder/dye leak check

| Refer to Fluid Leak Diagnosis

• | Replace Torque Converter if:

- | Leak present at weld areas

- | (hub, lug, or closure weld)

- | Hub surface is damaged

- | (scored, raised/transferred metal)

- | Bushing is damaged

Function/Appearance

- Torque Converter Discolored/Overheated

Replace Torque Converter

- Broken /Cracked Flexplate

Replace Torque Converter

- Stripped Converter Bolt Hole(s)

Replace Torque Converter

- Torque Converter Pilot Damaged

Replace Torque Converter

- Torque Converter Ballooning

Replace Torque Converter if end play exceeds 0.7mm using End Play Checking Tool #J35138

Driveability - non TCC

- Harsh Gear Shifts (non TCC)

Do not Replace Torque Converter

Refer to Symptom Diagnosis.

- No Drive/Slips in Drive (non TCC)

Do not Replace Torque Converter until completing all engine and transmission diagnostics

Refer to Slips in Drive or No Drive

- Idle Surge/Rough Idle

Do not Replace Torque Converter

Refer to Rough, Unstable, or Incorrect Idle and Stalling in Engine Controls 3.8 L

- Poor Acceleration

• | launch

• | above 30 MPH

Do not Replace Torque Converter until completing all engine and transmission diagnostics

• | Refer to Lack of Power, Sluggishness, or Sponginess in Engine Controls 3.8 L.

• | Refer to Hesitation, Sag, Stumble in Engine Controls 3.8 L.

• | Refer to Symptom Diagnosis

- DTC P0741 (TCC stuck OFF/high slip)Intermittent only

Do not Replace Torque Converter

Refer to DTC P0741 diagnostic table

- DTC P0741 (TCC stuck OFF/high slip)

Refer to DTC P0741 diagnostic table

- DTC P0742 (TCC stuck ON)

Do not Replace Torque Converter

Refer to DTC P0742 diagnostic table

- DTC P1870 (Transmission Slipping)

Refer to DTC P1870 diagnostic table

- DTC P1887 (TCC release switch)

Do not Replace Torque Converter

Refer to DTC P1887 diagnostic table

- TCC Apply/Release Shudder

Refer to Converter Clutch Apply Rough, Slips, or Shudders

- TCC Chuggle

• | Refer to Symptoms--Engine Mechanical in Engine Mechanical 3.8 L.

• | Refer to Surges/Chuggles in Engine Controls 3.8 L.

• | Refer to Symptom Diagnosis

Noise and Vibration

- Noise - Whine

• | Refer to Symptom Diagnosis

• | Do not Replace Torque Converter if:

| Noise present in Neutral/Park

| Refer to Symptoms--Engine Mechanical in Engine Mechanical 3.8 L.

- Vibration-Out of Balance

• | Refer to Flex Plate/Torque Converter Vibration Test

• | Refer to Vibration Analysis-Engine