Road Test: Introduction
WARNING: This page is about a different car, the 2002 Buick Regal, 2002 Buick Century, 2001 Buick Regal, and 2001 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The following test provides a method of evaluating the condition of the automatic transaxle. The test is structured so that most driving conditions would be achieved. The test is divided into the following parts:
- Electrical Function Check
- Upshift Control And Torque Converter Clutch (TCC) Apply
- Part Throttle Detent Downshifts
- Full Throttle Detent Downshifts
- Manual Downshifts
- Coasting Downshifts
- Manual Gear Range Selection
CAUTION:
Complete the test in the sequence given. Incomplete testing cannot guarantee an accurate evaluation.
Before the road test, ensure the following:
- The engine is performing properly.
- Transmission fluid level is correct.
- Tire pressure is correct.
During the road test:
- Perform the test only when traffic conditions permit.
- Operate the vehicle in a controlled, safe manner.
- Observe all traffic regulations.
- View the scan tool data while conducting this test. Take along qualified help to operate the vehicle safely.
- Observe any unusual sounds or smells.
After the road test, check the following:
- Transmission fluid level.
- Diagnostic Trouble Codes (DTC) that may have set during the testing.
- Scan tool data for any abnormal readings or data.