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Curtis, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 1606
Experience:  Qualified Automotive Mechanic, LPG & Airconditioning Diagnostic Technician.
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My holden commodore wont start no sound at all

Customer Question

my holden commodore wont start no sound at all
Submitted: 1 year ago.
Category: Australia Car
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer: replied 1 year ago.
broke down on motorway,,tried to start car again ,it turned over a few times and went dead
Expert:  Gary replied 1 year ago.

Hi Hemi,

Some questions to help me help you.

Does the theft deterrent light turn off when you turn ignition key on?

Sounds like it could have a burnt alternator battery harness.

Can you check the harness behind the red rubber boot on the back of the alternator, it could be hot, it could be loose, or it could look burnt.

We did many alternators/battery harness replacement in VX days.


Customer: replied 1 year ago.
no burn marks on back of alternator,not sure wat deterent light is,but dash lights up
Expert:  Gary replied 1 year ago.

Ok, if the alternator lead looks ok, that's a good start.

The theft deterrent light is on the mode switch.

It is the flashing red led when your security system is set.

So, when you turn the key on, does this light go out or stay lit?

Are the headlights bright or dim?


Customer: replied 1 year ago.
sorry cant afford calling.deterent light was flashing,wen I turned key on it went off,head lights good.battery was fully recharged by me
Expert:  Gary replied 1 year ago.

Hi Hemi,

You say you were driving, the car cut out without ANY warning (overheating, low oil pressure etc) and now the engine won't crank at all?

Does everything else appear to work ok?

I have seen poor engine ground at the block cause this.

Are you near an auto electrician who could look at it for you?

Do you know anybody with a scan tool that can check vehicle DTCs for you?


Customer: replied 1 year ago.
overheated first,its reading red hot on gauge,but radiator cap not hot,i have replaced water pump and threw rusty thermostat away.had problems water .could it be a relay box,noauto electrics close
Expert:  Gary replied 1 year ago.

Oh dear.

Does it sound like the starter motor engages at all while trying to start the engine?

Makes a thud type noise of engaging but not turning.

I have had engines overheat and seize to to point of stopping and won't restart.

Can't turn the engine by hand either.


Customer: replied 1 year ago.
theres no sound at all,also I have replaced starter motor as wellcan turn by handi tdo you hav a auto electrician
Customer: replied 1 year ago.
starter motor engages ,can turn motor by hand ,I think problem is electrical
Expert:  Gary replied 1 year ago.

Yes, sounds electrical.

Follow the large black negative lead from the negative battery terminal to the engine block.

Make sure the block terminal is tight.

Then check to see if the large red at the starter motor DOES have 12 volts at the terminal.

I am better than the average auto electrician, Gold Certified Holden tech, but I'm not with you.

I wish I was, I would have the answer for you now.

Give all the relays in the engine bay fusebox a wriggle, especially the start and EFI relays.