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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Evaporative Emissions System: Testing and Inspection

INCORRECT OPERATION MAY CAUSE:
Poor idle, stalling and poor driveability
^ Inoperative bowl vent valve
^ Inoperative canister control valve
^ Damaged canister
^ Hoses split, cracked or not connected to the proper tubes.

Evidence of fuel loss or fuel vapor odor
^ Liquid fuel leaking from fuel lines, fuel pump or carburetor
^ Cracked or damaged canister
^ Inoperative canister control valve
^ Disconnected, misrouted, kinked, deteriorated or damaged vapor hoses, or control hoses
^ Bowl vent hose misrouted
^ Air cleaner or air cleaner gasket improperly seated.

MAKE A VISUAL CHECK OF CANISTER
^ Cracked or damaged, replace canister.
^ Fuel leaking from bottom of canister. Replace canister and check operation of total system.
^ Check filter at bottom of canister. If dirty, plugged, or damaged, replace filter