XJ Jeep Trouble Shooting – Engine Spins But do not start
Posted on กุมภาพันธ์ 1, 2010
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Failure to start is divided into two categories:
The engine will not start turning point – the starter motor is not running
Or
The engine is running, but not the fire and run.
This article concerns the second case. If engine does not turn around to see my other article.
The Jeep Cherokee, as other vehicles need to do two things: fuel and ignition.
Flow can be controlled with the use of a fuel pressure tester to test the port must be connected toInjector rail. In an emergency, you may sacrifice a pressure gauge to verify the correct fuel pressure. The correct pressure will be about 35 to 40 kg depending on the vacuum conditions of the engine.
If you suspect a problem of fuel delivery, go listen first to the fuel pump. On most Cherokee XJ, the pump run a few seconds and then stop when the key is first turned into position. If the pump does not work, check the wiring of the fuel pump. Begin to seethe correct voltage to the resistance fighters of ballast on the left front fender is the same. You can also use the fuel pump relay and use a jumper cable to revive the fuel pump.
If the fuel pump is running, but not at the correct fuel pressure, check fuel leaks in the limes. This is a line of rubber in the tank when it breaks the system to lose pressure there is no visible leaks. This can be found Scratch a real world test.
If you use the right fuelPressure and will remain the engine is not enabled, check the source of ignition. The ECU is based on two signals for the ignition to be determined. The position sensor crankshaft position sensor and camshaft. The crankshaft position sensor on the clutch bell on the left side of the engine is. There is a wiring connected to the collector who sometimes corroded. Check for a good connection at this point. Furthermore, the wires that control the sensor, as I saw them damaged.
The camshaftSensor in the distributor housing. The most common problem with this sensor is re-wiring the connector for the wiring. Note also that the wires do not seem to land more on the back of the engine block near the distributor contact. If these reasons are loose cables, malfunctioning ECU. Check this during the review of wiring camshaft position sensor.
If the dealer has to be removed for any reason, check the indexing of the distributor. WhenDealers also a bit 'off, the computer will not generate the engine as a precaution. See my other articles for indexing dealer.
Another part is the flow of power for the ignition to stop the rotor is in the mailing list. Remove the distributor cap and make sure that contacts the rotor to make contact with the tip of the cap and do not burn too.