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Car Won't Crank

recce

By recce,
in General Maintenance

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R33TOM Community Regular

R33TOM

Posted
Posted (edited)

seems like the battery, its not even putting out 12 volts, a well charged battery should be putting out 12.5 - 13 volts

my car made the same noise when the battery went dead from not being driven...i think its some sort of protection to stop you from killing your starter motor.

Edited by R33TOM
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  • 4 weeks later...
Kobe 2007 Collaborator

Kobe 2007

Posted
Posted
THANKS ALL!!!!! Sorted! Its the battery. Got a jump lead and WHALA!!!! It crank and start! CHEERS TO ALL!!!

This has happened to me twice this year!

Didnt drive my car for like 1.5-2 days and doesnt start...

So your telling me it just dies if u dont drive it and or let it idle for a while?

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grigor Rising Star

grigor

Posted
Posted
..i think its some sort of protection to stop you from killing your starter motor.

That's not protection:

When you try to crank, the first operation is the starter solenoid energises and pulls the pinion into mesh and the same time it bridges the contacts to send power to the starter motor.

But if there isn't enough battery power, the voltage instantly drops, the solenoid gets de-energised, disengages the pinion and un-bridges the contacts to the starter motor.

That sound you're hearing is the solenoid trying to engage/disenage and at the same time it's arcing away at the bridging contacts for the starter motor.

It takes only a very few low battery starts to really burn up the solenoid starter motor contacts. Once they're burnt from arcing, they don't switch the high amperage starting loads too well and it's the beginning of a "sticky" action starter.

That's the one where someone suggest you give the starter a hit with a lump of wood.

Final situation is when the contacts weld together and so the starter stays engaged after the engine has fired.

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