Symptoms - Automatic Transmission. Chevrolet Joy 2008

For 1990-2009 cars

Diagnostic Category | Diagnostic Information
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DEFINITION: The following table consists of 8 diagnostic categories that are located in the left-hand column. Using this column, choose the appropriate category based on the operating conditions of the vehicle or transmission. After selecting a category, use the right-hand column to locate the specified symptom diagnostic information.

#### Electrical Diagnosis

• | A/T warning indicator always ON or flashes continuously

• | O/D OFF indicator always ON

• | O/D OFF indicator inoperative

• | Refer to Automatic Transmission Warning Lamp Flashes Continuously

• | Refer to overdrive OFF indicator, always ON

• | Refer to overdrive OFF indicator inoperative

#### Fluid Diagnosis

• | Fluid condition - appearance, contaminants, smell, overheating

• | Line pressure - high or low

• | Fluid leaks

• | Refer to Transmission Fluid Check

• | Refer to Line Pressure Check

• | Refer to Fluid Leak Diagnosis

• | Refer to Oil Out the Vent

#### Noise and Vibration Diagnosis

• | Noise - drive gear, final drive, whine, growl, rattle buzz, popping

• | Vibration

Refer to Noise and Vibration Analysis

#### Range Performance Diagnosis

• | No Park

• | No Reverse

• | No Drive

• | No Engine Braking

• | No Gear Selection

• | Refer to Unable to Run in All Ranges in All Ranges

• | Refer to First Gear Range Only - No Upshift

• | Refer to No Drive in Drive Range in Forward Ranges

• | Refer to No Reverse

• | Refer to Drives in Neutral in Neutral

• | Refer to No Engine Braking in First Gear in First Gear

• | Refer to Shift Cable Replacement

Shift Quality/Feel Diagnosis

Harsh shifts

• | Refer to Harsh Park or Neutral to Drive Engagement

• | Refer to Harsh Park or Neutral to Reverse Engagement

#### Shift Pattern

• | One forward gear only

• | Slipping

• | Refer to Transmission Slips

• | Refer to Slips in Reverse

• | Refer to No 1-2 Upshift

• | Refer to No 2-3 Upshift

• | Refer to No 3-4 Upshift

• | Refer to Inaccurate Shift Points

• | Refer to Slipping 1-2 Upshift

• | Refer to Slipping 2-3 Upshift

• | Refer to Slipping 3-4 Upshift

• | Refer to Abrupt 1-2 Upshift

• | Refer to Abrupt 2-3 Upshift

• | Refer to Abrupt 3-4 Upshift

• | Refer to Lack of Power or Hesitation

Torque Converter Diagnosis

Torque Converter Diagnosis

• | Refer to No Torque Converter Clutch Apply

• | Refer to Engine Stall

If no symptoms are found

• | Refer to Fluid Leak Diagnosis

• | Refer to Road Test

• | Refer to Stall Speed Test

• | Refer to Line Pressure Check