Home/Opel/Vectra/Opel Vectra C (2002-2008)/Repair manual/DOHC Petrol Engine/Remove and Install Intake Manifold Upper Part
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Remove and Install Intake Manifold Upper Part Opel Vectra C

DOHC Petrol Engine 8 illustrations ~524 words

Remove

  1. 1. Open bonnet
  2. 2. Disconnect battery.
  3. 3. Remove air intake hose (1) • Remove bolt (2) • Release 2x clamp
  1. 4. Remove air filter housing (1) with mass air flow meter • Detach secondary air system intake pipe (3) – Undo quick-release fitting – Unclip line • Disconnect mass air flow meter wiring harness plug (2) • Separate cable tie
  1. 5. Remove charge air pipe (2) • Release 2x clamp (1) • Disconnect charge pressure sensor wiring harness plug (3) • Unclip power steering line (4) – Unclip 2 clips
  1. 6. Remove upper engine cover • Remove oil filler cap • Remove cover • Replace oil filler cap
  2. 7. Remove coolant return line (2) • Unclip wiring harness (1) • Release 2x clamp (3) • Unscrew 3 bolts (arrows)
  1. 8. Disconnect engine control unit from electrical supply • Disconnect 2 engine control unit wiring harness plugs • Detach earth connection (3) – Remove bolt
  2. 9. Detach wiring harness bracket (4) • Remove wiring trough – Disconnect wiring harness plug (1) – Unscrew nut (2) • Disconnect wiring harness plug for intake pipe pressure sensor (3) • Unscrew 2x bolt • Separate cable tie • Unclip wiring harness plug
  3. 10. Detach vacuum line (6) from upper part of intake manifold • Undo quick-release fitting
  1. 11. Detach 2 crankcase vent lines (1) • Remove bolt (2) • Remove bracket
  1. 12. Detach injection valve wiring harness plug retainer (1) • Remove bolt (2)
  1. 13. Detach upper part of intake manifold • Unscrew 6 bolts (1) • Disconnect wiring harness plug for throttle valve module

Install

  1. 14. Install intake manifold upper part • Connect wiring harness plug for throttle valve module • Use new seals • Tighten 6x bolt 23 Nm
  2. 15. Attach injection valve wiring harness brackets • Tighten bolt 10 Nm
  3. 16. Attach 2 crankcase vent lines • Tighten bolt 10 Nm
  4. 17. Attach vacuum line to upper part of intake manifold • Connect quick-release fitting
  5. 18. Install wiring harness bracket • Tighten 2x bolt • Connect MAP sensor wiring harness plug • Attach cable ties • Clip in wiring harness plug • Attach wiring trough – Connect wiring harness plug – Attach nut
  6. 19. Restore engine control unit electrical connection • Attach earth connection – Tighten bolt • Connect 2x engine control unit wiring harness plugs
  7. 20. Install coolant return line • Fit 2x clamp • Tighten 3x bolt 10 Nm
  8. 21. Fit charge air pipe • Tighten 2x clamp 3,5 Nm • Connect charge pressure sensor wiring harness plug • Clip in power steering line – Clip in 2x
  9. 22. Install air intake pipe. • Tighten 2x clamp 3,5 Nm • Tighten bolt 1,5 Nm
  10. 23. Install air cleaner housing with mass air flow meter • Connect mass air flow meter wiring harness plug • Attach cable ties • Attach secondary air system intake pipe – Clip in line – Connect quick-release fitting
  11. 24. Install upper engine cover • Remove oil filler cap • Install cover • Replace oil filler cap
  12. 25. Connect battery. • Tighten 2x clamp 3,5 Nm • Tighten bolt
  13. 26. Close bonnet