Suzuki SY413 Service Manual page 2587

Condition
Engine hesitates Ignition system out of order
D Spark plug faulty or plug gap out of adjustment
(Momentary lack of
D Leaky high-tension cord
response as acceler-
ator is depressed.
Fuel system out of order
Can occur at all D Clogged fuel filter or fuel lines
vehicle speeds.
U Usually most severe ll t
Electronic Fuel Injection system out of order
when first trying to when first trying to
Engine overheating
make vehicle move,
as from a stop sign.)
Low compression
Others
D Malfunctioning EGR valve
Surge Ignition system out of order
D Leaky or loosely connected high-tension cord
(Engine power varia-
D Faulty spark plug (excess carbon deposits,
tion under steady
throttle or cruise.
D Faulty ignition coil assembly.
Feels like vehicle
speeds up and down
with no change in ac-
Fuel system out of order
celerator pedal.)
D Clogged fuel filter or fuel lines
D Kinky or damaged fuel hose and lines
Electronic Fuel Injection system out of order
Others
D Malfunctioning EGR valve
Excessive detona- Engine overheating
tion
Ignition system out of order
(Engine makes sharp
D Faulty spark plug
metallic knocks that
D Loose connection of high-tension cord
change with throttle change with throttle
Fuel system out of order
opening.
D Clogged fuel filter or fuel lines
Sounds like pop corn
popping.)
D Air inhaling from intake manifold or throttle body
Electronic Fuel Injection system out of order
Others
D Loose connection or disconnection of vacuum
D Excessive combustion chamber deposits
D Malfunctioning EGR valve
Possible Cause
improper gap, and burned electrodes, etc.)
gasket
hoses
ENGINE (ENGINE WITHOUT WU TWC) 6-11
Referring Item
Spark plugs in Section 6F1
High-tension cords in Section 6F1
Diagnostic Flow Chart B-3 in Sec-
tion 6E1
Trouble Diagnosis in Section 6E1
Refer to "Overheating" section
Previously outlined
EGR system inspection in
Section 6E1
High-tension cords in Section 6F1
Spark plugs in Section 6F1
Ignition coil assembly in Section
6F1
Diagnostic Flow Chart B-3 in Sec-
tion 6E1
Diagnostic Flow Chart B-3 in Sec-
tion 6E1
Trouble Diagnosis in Section 6E1
EGR system inspection in
Section 6E1
Refer to "Overheating" section
Spark plugs in Section 6F1
High-tension cords in Section 6F1
Diagnostic Flow Chart B-3 in Sec-
tion 6E1
Trouble Diagnosis in Section 6E1
Piston and cylinder head
cleaning in Section 6A1
EGR system inspection in
Section 6E1