Checks
| Action
|
DEFINITION: The engine
delivers less than expected power. There is little or no increase in speed
when partially applying the accelerator pedal.
|
Preliminary
Checks
|
• | Compare the customer's vehicle with a similar unit. Verify the
customer concern. |
• | Remove the air filter and check for dirt or a restriction. |
• | Check the transmission shift pattern and the downshift operation.
Refer to
Functional Test
in Automatic Transmission. |
|
Fuel System Checks
|
• | Check for a restricted fuel filter, contaminated fuel, or improper
fuel pressure. Refer to
Fuel System Diagnosis
. |
|
Exhaust System Checks
|
• | Inspect the exhaust system for damaged or collapsed pipes. Inspect
the muffler for heat distress or a possible internal failure. |
|
Additional Checks
|
• | Check the Control Module grounds for being clean, tight, and in
their proper location. |
• | Check the Torque Converter Clutch (TCC) operation. Refer to
Functional Test
in Automatic
Transmission. |
• | Check the Knock Sensor (KS) system. |
|
Engine Mechanical Check
| Check the engine for the proper operation
of the following items:
• | Improper or worn camshaft. |
|