Hyundai Elantra: Cylinder Head Assembly / Vacuum Pump
Repair procedures
1. | Disconnect the battery negative terminal. |
2. | Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner") |
3. | Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") |
4. | Disconnect the brake vacuum hose (A). 
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5. | Disconnect the fuel hose (A) and PCSV hose (B). 
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6. | Remove the main wiring protector (A) after disconnecting the connector (B). 
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7. | Disconnect the intercooler inlet hose (A). Tightening torque : Clamp bolt : 4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft) |

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| Insert the hose until it reaches the end of stopper. |
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8. | Remove the intercooler pipe (A). Tightening torque : Mounting bolt : 18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft) Clamp bolt : 4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft) |

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| Insert the hose until it reaches the end of stopper. |
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9. | Remove the vaccum pump (A). Tightening torque : 18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft) |

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10. | Install in the reverse order of removal. |
Repair procedures
Removal
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Use Fender cover to avoid damaging painted surfaces.•
To avoid damaging the cylinder head, wait until the engine coolant temperature drops below normal temperature before removing it...
Other information:
The actual layout of the vehicle may differ from the illustration.
Driver’s seat
(1) Forward and rearward
(2) Seatback angle
(3) Seat cushion height
(4) Seat cushion angle
(5) Lumbar support
Front passenger’s seat
(1) Forward and rearward
(2) Seatback angle..
Components and components location
Components Location1. Front rader unit
Specifications
Specification
Item
Specification
Power supply (V)12Operation voltage (V)9 - 16
Schematic diagrams
Circuit DiagramTerminal function
Pin No
Terminal function
1GROUND2L-CAN HIGH3L..