Symptom Diagnosis. Cadillac Catera 2000

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2000 🢒 Catera 🢒 Engine 🢒 Engine Controls - 3.0L (L81) 🢒 Symptom Diagnosis

Symptom Diagnosis 2000 V Car 4L30-E

Diagnostic Category

Diagnostic Information

Important: The Functional Test Procedure should be performed before beginning any diagnosis. If this procedure has not already been performed, refer to Functional Test .

The following table consists of seven diagnostic categories that are located in the left-hand column of the table. 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 specific symptom diagnostic information.

Fluid Diagnosis

This category contains the following topics:

•	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 Automatic Transmission Overheating and Fluid Leaking from Ventilation .

Noise and Vibration Diagnosis

This category contains the following topics:

•	Noise (drive gear, final drive, whine, growl, rattle, buzz, popping)

•

Vibration

•	Refer to Torque Converter Diagnosis .

•	Refer to Rattling Noises in the Transmission .

•	Refer to Vibration in Second Gear .

•	Refer to Rattling in Torque Converter Clutch .

Range Performance Diagnosis

This category contains the following topics:

•	Engine will not start

•	Drives in neutral

•

No park

•	No reverse

•

No drive

•	No engine braking

•	No or incorrect gear selection

•	Refer to Engine Will Not Start .

•	Refer to Selector Position P Will Not Engage .

•	Refer to Drives with Selector Lever in Position N .

•	Refer to Rear Wheels Locked .

•	Refer to No Reverse Gear .

•	Refer to No Engine Braking .

•	Refer to No Sport Program .

•	Refer to No Winter Program .

•	Refer to No Kickdown Program .

Shift Quality (Feel) Diagnosis

This category contains the following topics:

•	Harsh engagement (garage shifts)

•	Delayed engagement (garage shifts)

•	Shift shudder

•	Refer to Coarse Shifting from N to D .

•	Refer to Delay in Shifting from N to D .

•	Refer to Slips or Shudders in First Gear .

Shift Pattern

This category contains the following topics:

•	No upshifts

•	No downshifts

•

Slipping

•	Refer to Slips or Shudders in First Gear .

•	Refer to No 1-2 Upshift .

•	Refer to Difficulty in Shifting Between 1-2 Gear .

•	Refer to No 2-3 Upshift .

•	Refer to Difficulty in Shifting Between 2-3 Gear .

•	Refer to No 3-4 Upshift .

•	Refer to Difficulty in Shifting Between 3-4 Gear .

•	Refer to No Downshift Possible .

Shift Speed Diagnosis

This category currently has no information.

Currently no information

Torque Converter Diagnosis

This category contains the following topics:

•	Torque converter diagnosis

•	TCC does not apply

•	TCC does not release

•	Poor acceleration

•	Refer to Torque Converter Diagnosis .

•	Refer to No Engagement of Torque Converter Clutch .

•	Refer to Cannot Release Torque Converter Clutch .

•	Refer to Rattling in Torque Converter Clutch .

•	Refer to Poor Acceleration .

If No Symptom Found

•	Refer to Transmission Fluid Check .

•	Refer to Road Test .

•	Refer to Line Pressure Check .