Checking the fuel injection system Note. The test described below is carried out under the condition that the fuel pump is running and that the correct fuel pressure is maintained ( see section...
Fuel pressure regulator and fuel gauge cap (3.1L) Note. Due to the relative ease of replacing parts, the throttle body does not need to be disconnected from the intake manifold or disassembled. However, for...
Injector housing — removal and installation (3.1 l) 14. To disconnect the connectors from the injectors, squeeze the plastic tabs and pull the connectors up (see illustration). 12.14. To remove any wiring...
Throttle Position Sensor (TPS, 3.1L) 31. Remove the two screws securing the TPS sensor to the holders and remove the sensor from the throttle body. 32. If you intend to reuse the same sensor, do...
Secondary air spool in idle mode (IAC, 3.1 l) 37. Disconnect the electrical connector from the IAC valve and remove the valve (see illustration). 12.37. Idle Air Control Valve (IAC) can be unscrewed with...
Fuel supply meter — removal and installation (3.1 l) 46. Disconnect the electrical connectors from the injectors. 47. Remove pressure regulator and fuel gauge cap, cap gasket, gauge outlet gasket, and pressure...
Throttle body — removal and installation (3.1 l) 62. Disconnect all electrical connectors from the IAC valve, TPS sensor and injectors. Disconnect the wiring harness from the throttle body. 63. Disconnect the...
Adjustment of the minimum turns of idling (3.1 l) Note. This adjustment should only be made if the throttle body has been replaced. The engine must be at normal operating temperature before the adjustment...
Throttle body — removal and installation (3.8 l) Attention! Depressurize the fuel system before servicing the injectors, fuel pump, fuel line, fuel distributor, or pressure regulator. After servicing the fuel...
Spool of additional air in idle mode (IAC, 3.8 l) 11. Disconnect the electrical connector from the IAC valve. 12. Loosen the screws securing the IAC valve and remove the valve (see illustration). 13.12. You...
Throttle Position Sensor (TPS, 3.8L) 21. The replacement of this sensor should be carried out by car service centers equipped with a device "Scan" to properly adjust the TPS sensor.
Air manifold — removal and installation (3.8 l) 22. Disconnect a wire from a negative conclusion of the storage battery. 23. Mark any vacuum lines that may be tangled and disconnect them, then remove the...
Fuel injectors — removal and installation (3.8 l) Attention! To prevent contaminants from entering the engine, the area around the injectors must be cleaned before servicing. 39. To remove the injectors,...
Air flow sensor (MAF, 3.8 l) 52. Disconnect the electrical connector. 53. Remove the MAF sensor screws (see illustration) from the block. 13.53. Loosen the screws (indicated by arrows)...