Jeep Cherokee 1999 Electronic Service Manual page 1278

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X J
REM OVAL AN D I N STALLAT I ON (Cont inue d)
Fig. 22 Glow Plug
Fig. 23 Glow Plug Electrical Connector
INSTALLA TION
(1) Apply h igh –t em per a t u r e a n t i–seize com pou n d
t o glow plu g t h r ea ds befor e in st a lla t ion .
(2) In st a ll t h e glow plu g in t o t h e cylin der h ea d.
Tigh t en t o 23 N·m (203 in . lbs.) t or qu e.
(3) Con n ect ba t t er y ca ble t o ba t t er y.
GLOW PLUG RELA Y
Th e glow plu g r ela y is loca t ed in t h e en gin e com -
pa r t m en t on t h e left –in n er fen der (F ig. 24).
REMOVAL
(1) Discon n ect t h e n ega t ive ba t t er y ca ble a t t h e
ba t t er y.
(2) Rem ove r ela y m ou n t in g bolt .
(3) Discon n ect elect r ica l con n ect or a t r ela y a n d
r em ove r ela y.
INSTALLA TION
(1) Ch eck con dit ion of elect r ica l con n ect or for da m -
a ge or cor r osion . Repa ir a s n ecessa r y.
FUEL SYSTEM—2.5L DIESEL ENGINE
Fig. 24 Glow Plug Relay Location
(2) In st a ll elect r ica l con n ect or t o r ela y.
(3) In st a ll r ela y t o in n er fen der.
(4) Con n ect ba t t er y ca ble t o ba t t er y.
POWERTRAIN CONTROL MODULE (PCM)
Th e P CM is m ou n t ed t o a br a cket m ou n t ed t o t h e
in n er side of t h e r igh t fen der well beh in d t h e a ir
clea n er a ssem bly (F ig. 25).
Fig. 25 PCM Location
REMOVAL
(1) Discon n ect t h e n ega t ive ba t t er y ca ble a t t h e
ba t t er y.
14 - 35

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