Wednesday 8 June 2011

Help my jeep will not start - Jeep Cherokee Trouble Shooting

If you fall at the start into two categories:

1) The motor stops spinning - the starter is not running

Jump Starter

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2) The engine turns over the fire, but not run.

This article deals with the root cause. If you turn the engine failed to start, but see my other items.

Start by checking the battery voltage. Most of the jeep have a voltmeter on the dashboard. the voltage is low - less than 10 volts, check the following:

1. Fist check if there is ato discharge the battery. If the light? Doors left open or draining the power of other accessories to the left? If so, you want to start using jumper cables and exhaust with a charged battery from another vehicle.
2. If there was no discharge excess energy, check the status of the battery cable. Remove the wire from the battery and clean the contacts. Also check the connection of ground wires to the vehicle frame.
3. If the battery cables are clean andgood contact and the voltage is still low, if the alternator is working properly.
4. If the battery does not start after the Jeep to replace the battery.

If the battery voltage is normal, but still the engine does not turn, is the most common cause of security locks. On automatic transmission is a neutral safety switch (NSS), which only has permission to start the engine in neutral or park. can corrode the contacts of the switch and run the NSSmalfunction. Move the switch back and forth as you get the key. Often through movement and place the switch still works. The NSS can be disassembled and cleaned or simply replaced by a new unit.

If the NSS is working correctly, but the starter still does not turn, you may have a faulty starter or starter. The starter and solenoid valve are replaced as a unit on the Cherokee XJ. But as a starter before purchase of replacement, check the wiring on theStarter and trigger wire to the magnet. Often these connections can come loose or contaminated by the rigors of off-road driving. Some people have reported that starter disassembled and cleaned in order to solve problems, but I have not tried this method.

Help my jeep will not start - Jeep Cherokee Trouble Shooting

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