Charcoal Canister (T100)

Remove charcoal canister. See Figure-96. Inspect charcoal canister for cracks or damage. Install plug on port "E" on charcoal canister. See Fig 1-107.
Check for clogged filter and/or stuck check valve and diaphragm by applying.21 psi (.015 kg/cm² ) air pressure to port "A" while holding port "B" closed. See Fig 1-107. Ensure air flows freely from port "D".
Apply.26 psi (.018 kg/cm² ) air pressure to port "A" while holding ports "B" and "D" closed. See Fig 1-107. Ensure no air flows from port "C".
Using vacuum pump, apply one in. Hg of vacuum to port "B". Ensure vacuum does not decrease when port "C" is closed, and that vacuum decreases with port "C" is opened.
While holding port "C" closed, use vacuum pump to apply.36 in. Hg of vacuum to port "A". Ensure air flows into port "B". Replace charcoal canister if defective.

Fig 1: Identifying Charcoal Canister Ports (Avalon & Camry)

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Fig 2: Identifying Charcoal Canister Ports (Land Cruiser & LX470)

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Fig 3: Identifying Charcoal Canister Ports (Sienna)

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Fig 4: Identifying Charcoal Canister Ports (Tacoma & 4Runner)

Fig 5: Identifying Charcoal Canister Ports (T100)