Toyota 4-Runner 1985 Repair Manual page 122

EC-22
USA
EMISSION CONTROL SYSTEMS (CARB.)
Fuel Evaporative Emission Control
(EV AP) System
EC0301
Canada
1/
/
"
ECl119 EC0997 ECl 125
tJ
Canada
ECl 120 EC1126
Canada
ECl 121 EC0998 ECl 1 27
2. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
3. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
A03040
INSPECTION OF CHARCOAL CANISTER(S)
1. REMOVE CHARCOAL CANISTER(S)
2. VISUALLY INSPECT CHARCOAL CANISTER(S)
Look for cracks or damage.
3. CHECK FOR CLOGGED FILTER AND STUCK CHECK
VALVE
(a) Using low pressure compressed air, blow into the tank
pipe and check that the air flows without resistance
from the other pipes.
(b) Blow into the purge pipe and check that the air flows
without resistance from the other pipes.
If a problem is found, replace the charcoal canister.
4. CLEAN FILTER IN CANISTER(S)
Clean the filter by blowing 3 kg/cm2 (43 psi, 294 kPa) of
compressed air into the pipe, while holding the other up-
per canister pipes closed.
NOTE:
• Do not attempt to wash the canister.
• No activated carbon should come out.
5. REINSTALL CHARCOAL CANISTER{S)