Hyundai Sonata 1991 Shop Manual page 193

GENERAL
SPECIFICATIONS
Air cleaner
Type
Element
Rated air flow
Exhaust pipe
Muffler
Suspension system
GENERAL
Dry type
Unwoven cloth type
5.4
m
3
/min
Expansion resonance type
Rubber hangers
Y28CAQA
TIGHTENING TORQUE
Nm kg.cm lb.-It
Y28CBOA
Air cleaner mounting bolts
7.8-9.8 80-100 5.8-7.2
Air cleaner mounting bracket bolts 15-22 150-220
11-16
Intake manifold to cylinder head
15-20
150-200
11-14
Intake manifold stay to cylinder block 18-25 180-250 13-18
Throttle body to surge tank
9.8-13
100-130
7.2-9.4
Exhaust manifold to cylinder head
15-20 150-200 11-14
Exhaust manifold cover to exhaust manifold 12-15 120-150 8.7-11
Oxygen sensor to exhaust manifold 39-49 400-500 29-36
Front exhaust pipe to exhaust manifold 29-39
300-400
22-29
Front exhaust pipe bracket 20-29 200-300
14-22
Front exhaust pipe to catalytic converter 39-59 400-600 29-43
Catalytic converter to center muffler assy 29-39 300-400 22-29
Center muffler assy to main muffler
29-39 300-400
22-29
Main muffler hanger support bracket
9.8-20 100-200 7.2-14
TROUBLESHOOTING
Y28CCOA
Symptom
Probable cause
Remedy
Exhaust gas leakage
Loose connections
Re-tighten
Broken pipe or muffler Repair or replace
Abnormal noise Detached baffle plate in muffler Replace
Broken rubber hanger
Replace
Pipe or muffler contacting vehicle body
Correct
Broken pipe or muffler Repair or replace
28-2