Checks
| Action
|
Definition:
The engine has a power variation under a steady throttle or cruise. The vehicle
feels as if it speeds up and slows down with no change in the accelerator
pedal.
|
Preliminary
Checks
|
| • | Refer to Important Preliminary Checks. |
| • | Be sure the driver understands the Torque Converter Clutch (TCC)
operation. |
| • | Be sure the driver understands the A/C compressor operation. |
| • | Use the scan tool to make sure the reading of VSS matches vehicle
speedometer. This excludes vehicles with electronic transmissions where some
variation between VSS and the speedometer is normal. Refer to DTC P0501 Diagnostic
Aids. |
|
Fuel System
Checks
|
| • | Check the fuel pressure while condition exists. Refer to Fuel
Systems. |
|
Additional
Checks
|
| • | Check the control module grounds for being clean, tight, and in
their proper locations. |
| • | Check generator output voltage. Repair if less than 9 or more
than 16 volts. |
| • | Check vacuum lines for kinks or leaks. |
|
