Air Valve - Toyota 4-Runner 1985 Repair Manual

FI-58
AT LOW TEMPERATURE
From intake air
connector pipe
Bi-metal ----'--"-
Gate Valve
EFI SYSTEM - Air Intake System
FI0021
FI0022
FI0020
Air Valve
AFTER WARM-UP
ON-VEHICLE CHECK
1. CHECK OPERATION OF AIR VALVE
2.
Check the engine RPM by pinching shut the air hose.
At Low Temp. (Coolant Temp.: below
BOoC
or
140°)-J
• When the hose is pinched, the engine RPM should
drop.
A
her
warm-up
• When the hose is pinched, check that the engine
RPM does not drop more than 50 RPM.
MEASURE RESISTANCE OF AIR VALVE
Using an ohmmeter, measure the heat coil resistance of
the air valve.
Resistance (Ep-E,): 39-59 {}
REMOVAL OF AIR VALVE
1. DISCONNECT TWO AIR VALVE HOSES
2. DISCONNECT AIR VALVE CONNECTOR
3. DISCONNECT WATER BY-PASS HOSE
4. REMOVE AIR VALVE
Remove the two bolts and the air valve and gasket.