Checks
| Action
|
Definition: The vehicle
has a momentary lack of response when depressing the accelerator. The condition
can occur at any vehicle speed. The condition is usually most severe when
trying to make the vehicle move, as from a stop sign. The condition may cause
the engine to stall if it's severe enough.
|
Preliminary Check
| Refer to Important Preliminary Checks
.
|
Fuel System Checks
|
| • | Check the Throttle Position (TP) sensor for binding or sticking.
Voltage should increase at a steady rate as the throttle moves toward Wide
Open Throttle (WOT). |
| • | Check for water contamination in the fuel. Refer to Fuel System Diagnosis (Fuel Supply System)
for the 2.2L and 4.3L. |
| • | Check for low fuel pressure after a cold start or during a moderate
or full throttle acceleration. If the fuel pressure drops below specification,
there is possibly a faulty fuel pump or a restriction in the fuel system. |
|
Ignition System Checks
|
| • | Check for faulty spark plug wires. |
| • | Check for fouled spark plugs. |
|
Additional Checks
|
| • | Check the Service Bulletins for PROM updates. |
| • | Check the generator output voltage. Refer to Engine electrical. |
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