DeVille V8-252 4.1L VIN 8 FI (1983)
Air Injection Hose/Tube: Customer Interest
Check Valve to Right Exhaust Manifold A.I.R. Pipe
FIGURE 2 - A.I.R. PIPE - CHECK VALVE TO RIGHT EXHAUST MANIFOLD
Removal (Figure 2)
1.
Open hood and cover fenders.
2.
Remove air cleaner.
3.
Remove the right sheet metal diagonal brace using a 13 mm socket wrench.
4.
Disconnect spark plug wires 2, 3, 4 and 8 from distributor to gain access to pipe fitting at check valve.
5.
Disconnect vacuum hose from the thermal vacuum switch.
6.
Disconnect pipe from check valve using an 11/16 inch open end wrench.
7.
Remove A.I.R. management assembly from its mounting bracket using a 13 mm socket wrench.
8.
Disconnect inlet and outlet hoses and electrical connectors from the A.I.R. management assembly.
9.
Remove A.I.R. management mounting bracket and electrical ground straps from the exhaust manifold using a 13 mm socket wrench.
10.
Remove the generator support bracket using a 13 mm socket wrench.
11.
Disconnect the A.I.R. pipe from the exhaust manifold using a 13 mm socket wrench.
12.
Remove the retaining clips which hold the A.I.R. pipe to the EFE vacuum pipe.
13.
(C/D SERIES ONLY) Raise vehicle.
14.
(C/D SERIES ONLY) Disconnect the A.I.R. pipe from the cylinder head mounting stud using a 15 mm flex socket wrench with a long
extension. (E/K SERIES ONLY) Disconnect the A.I.R. pipe from the cylinder head mounting stud using a 15 mm socket wrench.
15.
(C/D SERIES ONLY) Lower vehicle.
16.
Remove A.I.R. pipe.
Installation (Figure 2).
1.
Install A.I.R. pipe.
2.
Connect pipe to the check valve using an 11/16 inch open end wrench.
3.
(C/D SERIES ONLY) Raise vehicle.
4.
(C/D SERIES ONLY) Connect the A.I.R. pipe to the cylinder head mounting stud using a 15 mm flex socket with a long extension. (E/K
SERIES ONLY) Connect the A.I.R. pipe to the cylinder head mounting stud using a 15 mm socket wrench.
5.
(C/D SERIES ONLY) Lower vehicle.
6.
Install the retaining clips which hold the A.I.R. pipe to the EFE vacuum pipe.
7.
Connect the A.I.R. pipe to the exhaust manifold using a 13 mm socket wrench.
8.
Install the generator support bracket using a 13 mm socket wrench.
9.
Install the A.I.R. management mounting bracket and electrical ground straps to the exhaust manifold using a 13 mm socket wrench.
IMPORTANT:
Improper installation of the electrical ground straps may affect vehicle performance. Special cam should be taken to insure
