Jeep Cherokee 1999 Electronic Service Manual page 1240

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REM OVAL AN D I N STALLAT I ON (Cont inue d)
REMOVAL
WARNING: THE EXHAUST MANIFOLD, EXHAUST
PIPES AND CATALYTIC CONVERTER BECOME
VERY HOT DURING ENGINE OPERATION. ALLOW
ENGINE TO COOL BEFORE REMOVING OXYGEN
SENSOR.
(1) Ra ise a n d su ppor t veh icle.
(2) Discon n ect wir e con n ect or fr om O2S sen sor.
CAUTION: When disconnecting sensor electrical
connector, do not pull directly on wire going into
sensor.
(3) Rem ove O2S sen sor. Sn a p-On oxygen sen sor
wr en ch (n u m ber YA 8875) m a y be u sed for r em ova l
a n d in st a lla t ion .
INSTALLA TION
Th r ea ds of n ew oxygen sen sor s a r e fa ct or y coa t ed
wit h a n t i-seize com pou n d t o a id in r em ova l. D O
N OT a d d a n y a d d itio n a l a n ti-s e ize c o m p o u n d to
th re a d s o f a n e w o x y g e n s e n s o r.
(1) In st a ll O2S sen sor. Tigh t en t o 30 N·m (22 ft .
lbs.) t or qu e.
(2) Con n ect O2S sen sor wir e con n ect or.
(3) Lower veh icle.
AIR CLEANER ELEMENT (FILTER)
REMOVAL
(1) Un lock a ir t u be cla m p (F ig. 54) a t a ir clea n er
cover. To u n lock cla m p, a t t a ch a dju st a ble plier s t o
cla m p a n d r ot a t e plier s a s sh own in (F ig. 55).
(2) Rem ove a ir t u be a t cover.
(3) P r y ba ck t h r ee clips r et a in in g a ir clea n er cover
t o a ir clea n er h ou sin g.
(4) Rem ove h ou sin g cover a n d r em ove a ir clea n er
elem en t .
(5) Clea n in side of h ou sin g befor e r epla cin g ele-
m en t .
INSTALLA TION
(1) In st a ll a ir clea n er elem en t in t o h ou sin g.
(2) In st a ll a ir clea n er cover t o h ou sin g (t h r ee
clips). Be su r e cover is pr oper ly sea t ed t o a ir clea n er
h ou sin g.
(3) In st a ll a ir t u be a n d cla m p t o cover. Com pr ess
cla m p sn u gly wit h a dju st a ble plier s a s sh own in (F ig.
56).
Fig. 54 Air Cleaner Housing and Element (Filter)
Fig. 55 Clamp Removal
Fig. 56 Clamp Installation
FUEL SYSTEM 14 - 49