Timing Belt - Subaru IMPREZA GD 2007 Series Manual

asieps_tobira_IM_US.book 178 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK INSTALLATION CONDITION OF
CRANKSHAFT POSITION SENSOR.
Turn the ignition switch to OFF.
2 CHECK CRANK SPROCKET.
Remove the timing belt cover. <Ref. to
ME(H4SO)-42, REMOVAL, Timing Belt Cover.>
3 CHECK INSTALLATION CONDITION OF

TIMING BELT.

Turn the crankshaft using ST, and align align-
ment mark on crank sprocket with alignment
mark on cylinder block.
ST 499987500
Is the crankshaft position sen-
sor installation bolt tightened
securely?
Are crank sprocket teeth
cracked or damaged?
Is the timing belt dislocated
from its proper position?
CRANKSHAFT
SOCKET
EN(H4SO)(diag)-178
Check Yes
Go to step 2.
Replace the crank
sprocket. <Ref. to
ME(H4SO)-50,
Crank Sprocket.>
Repair the installa-
tion condition of
timing belt. <Ref. to
ME(H4SO)-43,
Timing Belt.>
No
Tighten the crank-
shaft position sen-
sor installation bolt
securely.
Go to step 3.
Replace the crank-
shaft position sen-
sor. <Ref. to
FU(H4SO)-23,
Crankshaft Posi-
tion Sensor.>