Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Ignition System: Testing and Inspection

ON-VEHICLE INSPECTION: SPARK TEST

CHECK THAT SPARK OCCURS
(a) Disconnect high-tension cords from spark plugs.
(b) Remove the spark plugs.
(c) Install the spark plugs to each high-tension cord.
(d) Ground the spark plug.
(e) Check if spark occurs while engine is being cranked.

NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at a time.

No Spark Flow Chart:





If the spark does not occurs, perform the test according to the chart.