Checks
| Action
|
DEFINITION: A surging or jerking that follows engine speed, usually more pronounced
as the engine load increases.
|
Preliminary Checks
| Refer to Important Preliminary Checks in
Symptoms - Engine Controls
.
|
Fuel System Checks
|
| • | Inspect for correct operation of the LPG fuel injectors. Refer to: |
| • | Test the lock-off valves / circuits for correct operation. |
|
Ignition System Checks
|
| • | Inspect for fouled spark plugs. |
| | If fouled spark plugs are
indicated the reason for the fouling must be found and corrected. |
| • | Test for faulty spark plug wires. |
| • | Test for an open ignition system ground. |
|
Engine Mechanical Checks
| Test for correct engine operation by checking for the following:
| • | Correct engine compression |
| • | Correct engine valve timing |
| • | Worn or incorrect camshafts |
| • | Casting flash in the intake or exhaust manifold passages |
|
