Chevrolet CAMARO 1979 Service Manual page 561

FUEL SYSTEM 6C"9
CARBURETOR DIAGNOSIS CONT'D.
C O N D I T I O N P O S S I B L E C A U S E C O R R E C T I O N
f u n n i n g o ! r o f g a s s u r g i n g
occu^ in mid+Pêed rânge
Loose, broken or improperly
Ensinê in need ôf servicè.
H i s h f u e l L e v e L i n c â r b ! r e r o r .
Power system in carbureror
not functionlng propeny.
Power p stonG) nlcking or
derering rods o!r ol jer.
Plussêd ôn c eâner eleme.r.
Low lre p.essure or Incotrecr
Evaporaiive emlssiôn cânktôr.
Transmisiô. malfu.ction
F o r e i o n m a t e r i a l i n f u e s F r e m
k i n k e d f u e l p i p e s o r h o 3 e s .
Check côndiiion of al vacuum hose
roûtlngs. coirecr as nece$ârv.
Check enOlne cômpression, exâmine spark
p uqsj if fôuled or improper y gapped,
cLeân â.d regâp or replace. Check isnilion
w i r e . o n d h i ô n â . d c h e c k â n d r e s e t i s
n l i i o n r i m i n g . R e p l a c ê ê i r c e ê n e r e l e m e n r
if ditry. Check ror rêsricted exha!st
svstem ênd nrâke maniiod lor leakage.
Check carburê1or mountinq bo t torqùe. Chêck
vâcuùm a.d mechânical advancê.
C h e c k f l e l l a n k , f u e l i n e s a n d f u e L
p!mp for any fuel eakage.
Check fuel in er needle and sear for proper
s e a l . 1 e * , u r i n s s ! c l l o n l r ô m â v â c u ù m
source, lt needle is leâk ng, replace.
Check Jor oaded floar. Resêt tloat
lf excessive forelgn mâterlal s present
in the carburelor bow, the carb!retor
Femole âir horn and check rorrreê
movêment ôl pôwer pl*onlr. clean
ard cotreci âs ^ece$ary.
check chôke hêared âir rubes for routing
ând/or pLuggins which wo!!d renricr
h ô t a l r f l ô w i o c h o k e h o u s n g , C h e c k c h o k e
Linkage lor blndins. C *n or repair
ôs required. cheôk âdiustment of thermo-
sétlc coil. Reâdjui ro spêcitication
a5 required. check e êcrri. chÔke
Check ror resùictlone. Corcct âs requ red.
Inflate t rcs tô specilications aûd !se
See evaporaiive sect on (Dâisnoss)
FeJêr to t.ênsnhsion diagnosl!,
Remove and replace lillers.
P e r l o r m t u e l p u m p t ê s t
Bemove and replaæ fue pump âs required.
Inspect pipes,ând hoses for klnks ênd
be.ds, blow out lo check for pluqglnq.
Rêmove and replace as required.
F i g . 6 C 1 8 D i a g n o s i s 8 o f 9