GMC T Series 1994 Repair Manual page 567

N O T IC E : W h e n f a s t e n e r s a r e r e m o v e d , a lw a y s r e in s t a ll th e m a t th e s a m e lo c a t io n f r o m w h ic h t h e y w e r e
r e m o v e d . I f a f a s t e n e r n e e d s to b e r e p la c e d , u s e th e c o r r e c t p a r t n u m b e r f a s t e n e r f o r t h a t a p p lic a t io n . I f
t h e c o r r e c t p a r t n u m b e r f a s t e n e r i s n o t a v a ila b le , a fa s t e n e r o f e q u a l s iz e a n d s t r e n g t h ( o r s t r o n g e r ) m a y
b e u s e d . F a s t e n e r s t h a t a r e n o t re u s e d , a n d t h o s e r e q u ir in g th r e a d lo c k in g c o m p o u n d w ill b e c a lle d o u t.
T h e c o r r e c t to r q u e v a lu e m u s t b e u s e d w h e n in s t a llin g f a s te n e r s t h a t r e q u ir e it. I f t h e a b o v e c o n d it io n s
a r e n o t fo llo w e d , p a r t s o r s y s t e m d a m a g e c o u ld r e s u lt.
SUBJECT
General D escription........................................................................................................................................................6C1-2
Throttle Body Disassembly...........................................................................................................................................6C1-4
Idle Air Control (IAC) Valve...................................................................................................................................... 6C1-4
Throttle Position Sensor (TP S e n s o r)...................................................................................................................6C1-4
Idle Speed Control (ISC) Actuator Assembly (7.4L Engine O nly)................................................................ 6C1-4
Fuel Meter C o ver......................................................................................................................................................... 6C1-4
Fuel In jecto rs.......................................................................................... ,....................................................................6C1-4
Fuel Meter B o d y .......................................................................................................................................................... 6C1-5
Cleaning.............................................................................................................................................................................. 6C1-5
Throttle Body Reassembly............................................................................................................................................6C1-5
Fuel Meter B o d y .......................................................................................................................................................... 6C1-5
Fuel In jecto rs........................................... .................................................................................................................... 6C1-5
Fuel Meter C o v e r.........................................................................................................................................................6C1-6
Throttle Position Sensor (TP S en so r).................................................................................................................. 6C1-6
Idle Air Control (IAC) Valve................................................................................................................ ..................... 6C1-6
Idle Speed Control (ISC) Actuator Assembly (7.4L Engine O nly)................................................................ 6C1-7
S pecifications...................................................................................................................................................................6C1-7
Fastener Tightening Specifications........................................................................................................................6C1-7
Special T o o ls .................................................................................................................................................................... 6C1-7
SECTION 6C1
MODEL 220
TBI UNIT
CONTENTS
PAGE