Cars with V6 engine
Removal
1. Disconnect air hose 1 and hose 2 by loosening the fastening clamps (see illustration).
2. Disconnect the accelerator cable.
3. Unscrew bolt 1 and disconnect pipe 2 from the EGR valve, holding the pipe with a wrench to prevent it from turning (see illustration).
4. Disconnect plug 1 from the EGR valve and plug 2 from the knock sensor (see illustration).
5. Disconnect plug 1 of the throttle potentiometer and also the cooling hose 2 from the throttle body (see illustration).
Attention! Collect the leaking liquid in a container.
6. Disconnect low pressure hoses 3 from the brake booster (see illustration 6.5).
7. Disconnect the crankcase ventilation hoses 1 and the low pressure hoses (see illustration).
8. Remove plugs 1 and unscrew the intake manifold mounting bolts located underneath them (see illustration).
9. Lift the intake manifold up and remove it. Make sure there are sealing rings (6 pcs.) between the intake manifold and the intake bulkhead.
Caution! Plug the intake port with a clean rag. Foreign bodies entering the intake system can cause significant engine damage.
10. Disconnect the plug and low pressure hoses from the intake manifold flap 1 (see illustration).
(Source is on the website OpelBook)
11. Remove low pressure hose 2 from the fuel pressure regulator (see illustration 6.10).
Installation
12. Place six new sealing rings 1 (see illustration).
When installing the intake manifold 1 two guide pins (see arrows in illustration 6.0) should fall into the holes.
Install the removed parts in the reverse order of removal.
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