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Chevrolet Silverado / GMC Sierra. Manual - part 1817
Fig. 95: View Of Various Connectors & Clips
Courtesy of GENERAL MOTORS CORP.
12. For vehicles equipped with 2 wheel drive (2WD) perform the following steps, for vehicles
equipped with 4 wheel drive (4WD) proceed to step 15.
13. Remove the left front CPA retainer.
14. Disconnect the left front HO2S electrical connector (7) from the engine wiring harness
electrical connector (6).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 96: View Of Various Connectors & Clips
Courtesy of GENERAL MOTORS CORP.
15. For vehicles equipped with 4WD perform the following steps, remove the left front CPA
retainer.
16. Disconnect the engine wiring harness electrical connector (7) from the left front HO2S
electrical connector (8).
17. Remove the left front HO2S electrical connector clip from the fuel line clip (2).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 97: View Of Catalytic Converter To Muffler Nuts
Courtesy of GENERAL MOTORS CORP.
18. Remove the catalytic converter to muffler nuts.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 98: View Of Exhaust Manifold Nuts & Exhaust Seals
Courtesy of GENERAL MOTORS CORP.
19. Remove the catalytic converter to exhaust manifold nuts (1).
20. Separate the catalytic converter assembly from the exhaust manifolds.
21. Remove the catalytic converter assembly from the exhaust muffler.
22. If replacing the catalytic converter assembly, perform the following steps, otherwise
proceed to step 4 in the installation procedure.
23. Remove the exhaust seals (2 and 3).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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