Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 08 thrbod insp
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SF-42
SFI - THROTTLE BODY
SF1MG-01
INSPECTION
NOTICE:
In case of changing, removing or installing the throttle
body or IAC valve, must do this.
1. INSPECT THROTTLE BODY
(a) Check that there is no clearance between each throttle
stop screw and the throttle lever when applying the vacu-
Must Have
Must Have um (53.3 kPa (400 mmHg, 15.7 in.Hg)) to the throttle
Clearance
No Clearance B12676
opener using a MITYVAC (Hand-Held Vacuum Pump).
Standard: Must have no clearance
NOTICE:
As the throttle stop screw is precisely adjusted, so do not
adjust it.
(b) Under the condition of (1), check visually that there is a
clearance between each adjust screw and the throttle le-
ver on No.1 side.
Adjust screw Reference value
Close Side Close side About 0.13 mm (0.0051 in.)
Open side About 0.22 mm (0.0087 in.)
Open Side B05131
Fully Opening Feeler (c) Measure the clearance between the adjust screw on the
Gauge close side when fully opening the throttle lever on No.2
side by hand and the throttle lever on No.1 side with a
feeler gauge.
Standard value: 0.25 - 0.45 mm (0.0098 - 0.0177 in.)
In case of being out of standard value, perform the ad-
justment of step 2.
Adjust Screw
(Close Side) B05132
2001 SIENNA (RM787U)
Author : Date : 1117
SF-43
SFI - THROTTLE BODY
Throttle Stop Screw 2. ADJUST THROTTLE BODY (BALANCE)
Adjust Screw NOTICE:
(Close Side)
Do not adjust the throttle stop screw and throttle opener.
(a) Beforehand checking.
Recheck 1 - (a).
(b) Adjustment of the adjust screw on the open side.
(1) Using a 2 mm hexagon wrench, loosen the lock nut
Adjust Screw
and screw, make clearance between the screw tip
(Open Side)
B09116 and the throttle lever on No.1 side.
(2) Turn the screw to the screw torque direction gradu-
ally, and stop it at the position where to touch the le-
ver at the very moment.
NOTICE:
If turning it too much to the torque direction, the No.1 lever
goes off from the throttle stop screw causing the adjust-
ment failure.
(3) Turn it back from the position where it touches the
lever to the screw loosing direction.
Standard: Turn it back by rotating 1/4
(4) Tighten the lock nut.
Close Side (c) Adjustment of the adjust screw on the close side.
(1) Loosen the lock nut and screw, and make clearance
between the screw tip and the throttle lever on No.1
side.
Open Side B05184 (2) Turn the screw to the screw torque direction gradu-
ally, and stop it at the position where to touch the le-
ver at the very moment.
NOTICE:
If turning it too much to the torque direction, the No.2 lever
goes off from the throttle stop screw causing the adjust-
ment failure.
(3) Turn it back from the position where it touches the
lever to the screw loosing direction.
Standard: Turn it back by rotating 1/2 - 3/4
(4) Tighten the lock nut.
(d) Completion checking.
Check 1 - (c).
2001 SIENNA (RM787U)
Author : Date : 1118
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