Jeep Cherokee 1999 Electronic Service Manual page 1252

X J
DI AGN OSI S AN D T EST I N G (Cont inue d)
Fig. 14 Fuel Injector Sensor
Fig. 15 Vehicle Speed Sensor—2 Wheel Drive
(18) Be su r e t h a t t h e gr ou n d con n ect ion s a r e t igh t
a n d fr ee of cor r osion . Refer t o Gr ou p 8, Wir in g for
loca t ion s of gr ou n d con n ect ion s.
(19) In spect t h e a ir clea n er elem en t (filt er ) for
r est r ict ion s.
(20) Be su r e t h a t t h e t u r boch a r ger ou t pu t h ose is
pr oper ly con n ect ed t o t h e ch a r ge a ir cooler (in t er-
cooler ) in let t u be. Ver ify t h a t t h e ch a r ge a ir cooler
ou t pu t h ose is pr oper ly con n ect ed t o t h e cooler a n d
t h e in t a ke m a n ifold. Refer t o Gr ou p 11, E xh a u st Sys-
t em a n d In t a ke Ma n ifold for in for m a t ion .
(21) Be su r e t h a t t h e va cu u m h oses t o t h e va cu u m
pu m p a r e con n ect ed a n d n ot lea kin g. Th e va cu u m
FUEL SYSTEM—2.5L DIESEL ENGINE
Fig. 16 Vehicle Speed Sensor—4 Wheel Drive
Fig. 17 Engine Coolant Temperature Sensor
pu m p is loca t ed in t h e fr on t of en gin e (in t er n a l) a n d
is dr iven fr om t h e cr a n ksh a ft gea r (F ig. 18). Discon -
n ect t h e h ose a n d ch eck for m in im u m va cu u m fr om
t h e pu m p. Refer t o Gr ou p 5, Br a ke Syst em for spec-
ifica t ion s a n d pr ocedu r es.
(22) Be su r e t h a t t h e a ccessor y dr ive belt is n ot
da m a ged or slippin g.
(23) Ver ify t h er e is a good con n ect ion a t t h e en gin e
speed sen sor. Refer t o t h e F u el In ject ion Syst em in
t h is sect ion for loca t ion of t h e en gin e speed sen sor
loca t ion .
Location
14 - 9