Car will not start, all lights turn on but nothing happens. Have had battery, alternator, and starter checked and all working perfectly, replaced battery within the last 2 weeks but problems started just before replacement. This problem occurs at random, sometimes I'll get in, start up, and drive off...other times nothing happens. Thanks in advance.
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hi Roy.
The starter won't crank. If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a dead battery; here is How to check the battery. ... The ignition switch could be bad - it's a common problem.13 Aug 2013
The first thing to check is the battery. Turn on the inside dome light. If it fails to light, then check the battery itself for voltage. If it is totally dead, then have the charging system checked. The battery seldom dies completely unless there is a bigger issue, such as a bad alternator. If the dome light works, with it on, try turning the key to the start position. One of three things should happen.
1. The light goes completely out, and nothing else happens. This may still be a battery issue. The starter requires a considerable amount of current to activate, and a dead battery will prevent this. The car would cut off once the battery voltage drains below approximately 8 volts.
2. The light stays the same brightness. This would mean that the starter circuit is malfunctioning, since the current needed to start the car should make the light dim slightly during cranking.
3. The light dims slightly. If this occurs without any other indications, it could be a bad starter. Usually the solenoid kicks in, engaging the starter to the flywheel. This action starts the starter motor turning. If there is some issue with the starter solenoid, it could be trying to engage, but not successfully.
Of the three issues above, my best guess would be #1. You my have had a bad alternator or regulator diode and discharged the battery below the level to operate the vehicle. The battery may be able to be recharged, but its life would be shortened considerably. The real issue is to fix the charging problem. This is usually an alternator or regulator (if the regulator is separate from the alternator).
do the dashboard lights go out when key turned to start? when you say nothing happens,is there a click? does the motor turn over,but not fire? is it an automatic,meaning is the gear inhibitor switch preventing starter from working?have you tried a jumper battery?putting a jumper lead from the battery earth to the engine ground helps sometimes,if earthing cables broken
clean battery terminals, then use voltmeter set it on dc 10amp an groung the black then while car is running touch the red probe to the main wire (large wire) in back of alternator it should read 14 volts if not replace alternator also have battery checked at a part store. If all of that is good replace starter.
check your alternator belt if its good check your battery with a volt ohm meter engine off it should read 12.1-6 volts start car should read 13.3 nothing lower than this if higher 14.and above alternator is bad if lower than 13. altnator is not charging the battery.
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