Re: Starter motor and ignition switch and O2 sensor and...
You need to remove all of the air intake and other things behind the battery. The start motor is held in with two bolts. You might need a breaker bar to break loose the one bold as I did. Once you remove all of the air intake equipment. This will help you gain access to the starter motor. You might not need to remove all the air intake equipment I know it made it alot easier for me to remove the starter and I took it to the auto store and had it tested.
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Possible that the starter motor solenoid is not switching or the starter motor is not engaging due to poor brush contact.
You must also make sure that the ignition switch is working correct by contacting. so a voltage check when the swittch is turned will confirm the fault.
Check the following:
1. Broken, loose or disconnected wiring in the starting circuit.
2. Starter motor pinion jammed in flywheel ring gear
3. Starter Solenoid faulty
4. Starter motor faulty
5. Ignition switch faulty
6. Defective Battery fusible link (140 amp)
7. Automatic transaxle not completely engaged in park or clutch pedal not completely depressed.
8. Broken or stripped timing chain
9. Ignition components damp or damaged.
10. Broken, loose or disconnected wires at hte ignition coils or faulty coils.
11. Defective MAF sensor.
12. Worn, faulty or incorrectly gapped spark plugs.
It is possible but unlikely, the ignition switch is pretty rugged and dosn't give much trouble. Check the starter motor connections , try hot wireing direct from the positive terminal of your battery to the starter to ensure that the starter is not the problem. If the starter is Ok investigate the shifter lockout that stops the car starting in gear, they sometimes get dirty or break. Happy hunting Marshall
the starter is either worn and brushes not making contact or an engine oil leak onto the starter. thus keeping the brushes from making contact you can check this by banging on the starter while someone trys turning the ignition back and forth to start.(making the click click click)
ignition switch is weak, not providing enough voltage from the to kick the soliniod all the way to start the starter
The way to check that is to hot wire the starter soliniod little wire, to battery voltage. (the big cable on the solinoid)
If it turns over good, then you can either replace the ignition switch or install a relay someware near the starter to supply it with propper current to kick the solinoid all the way to engage the motor.
The relay acts as a remote starter switch that feeds more direct power to the starter solinoid.Now the only thing the ignition switch is responsible for, is trigger the relay.
try to check the battery if voltage is adequate. If it checks out OK, you may want to check on the connections, the ground wires and wiring that leads to the starter, the starter relay and the ignition. It may also be the starter relay.