2009款日产帕拉丁Xterra N50发动机冷却系统维修手册（英文）.pdf

CDEFGHIJKLMANOTroubleshooting Chart ...............................................8Removal and Installation .........................................28ON-VEHICLE MAINTENANCE ....................10ENGINE COOLANT ...........................................10System Inspection ...................................................10Changing Engine Coolant .......................................11SERVICE DATA AND SPECIFICATIONS (SDS) ............................................................30SERVICE DATA AND SPECIFICATIONS (SDS) .................................................................30Standard and Limit ..................................................30ENGINESECTION COCOCONTENTSENGINE COOLING SYSTEMVQ40DEPRECAUTION ............................................... 2PRECAUTIONS ................................................... 2Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-SIONER" ...................................................................2Precaution for Liquid Gasket .....................................2PREPARATION ............................................ 4PREPARATION ................................................... 4Special Service Tool .................................................4Commercial Service Tool ..........................................4FUNCTION DIAGNOSIS ............................... 6COOLING SYSTEM ............................................ 6Cooling Circuit ...........................................................6Schematic .................................................................7OVERHEATING CAUSE ANALYSIS .................. 8ON-VEHICLE REPAIR .................................15RADIATOR ........................................................15Exploded View .........................................................15Removal and Installation .........................................15Checking Radiator ...................................................17ENGINE COOLING FAN ...................................18Exploded View .........................................................18Removal and Installation (Crankshaft driven type) ....18Removal and Installation (Motor driven type) ..........19WATER PUMP ..................................................21Exploded View .........................................................21Removal and Installation .........................................21WATER INLET AND THERMOSTAT ASSEM-BLY ....................................................................26Exploded View .........................................................26Removal and Installation .........................................26WATER OUTLET AND WATER PIPING ..........28Exploded View .........................................................28CO-1P[VQ40DE]PRECAUTIONSPRECAUTIONPRECAUTIONSPrecaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000004063633The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used alongwith a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certaintypes of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRSsystem uses the seat belt switches to determine the front air bag deployment, and may only deploy one frontair bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.Information necessary to service the system safely is included in the SR and SB section of this Service Man-ual.WARNING:• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death inthe event of a collision which would result in air bag inflation, all maintenance must be performed byan authorized NISSAN/INFINITI dealer.• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personalinjury caused by unintentional activation of the system. For removal of Spiral Cable and Air BagModule, see the SR section.• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in thisService Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-ness connectors.Precaution for Liquid Gasket INFOID:0000000004063634REMOVAL OF LIQUID GASKET SEALING• After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket sealing. CAUTION:Be careful not to damage the mating surfaces.• Tap (1) Tool to insert it, and then slide (2) it by tapping on the sideas shown.• In areas where Tool is difficult to use, use plastic hammer to lightlytap the parts, to remove it.CAUTION:If for some unavoidable reason suitable tool such as screw-driver is used, be careful not to damage the mating surfaces.LIQUID GASKET APPLICATION PROCEDURE1. Remove the old liquid gasket adhering to the gasket applicationsurface and the mating surface using suitable tool.• Remo。