C 2500 Suburban 2WD V8-454 7.4L (1994)
Evaporative Emission Control Canister: Testing and Inspection
Incorrect Operation May Cause:
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Poor idle, stalling and poor driveability, check for:
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Damaged canister
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Hoses split, cracked or not connected to the proper tubes.
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Evidence of fuel loss or fuel vapor odor check for:
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Liquid fuel leaking from fuel lines
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Cracked or damaged canister
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Disconnected, misrouted, kinked, deteriorated or damaged vapor hoses, or control hoses
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Air cleaner or air cleaner gasket improperly seated.
Make A Visual Check Of Canister
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Cracked or damaged, replace canister.
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Fuel leaking from bottom of canister. Replace canister and check operation of total system.