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Engine Cranks, Doesn't Start

Cassbo

By Cassbo,
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Cassbo Grand Master

Cassbo

Posted
Posted

Today I was driving home on Mona Vale Rd at around 70-80km/h when my car stalled. Stalled as in engine off, no power steering, no power assisted brakes. Gauges not working and all in dash lights out.

At the time I was playing music loudly and driving with my head lights on.

Tried to start the car, it would only turn over, no in dash lights, not even Air bag or HICAS. However, my music continues to play, air con continues to work and my clock didn't reset.

After about 30 seconds the dash comes to life and I start the car. Everything sounds as normal. After about 10 mins of driving I decide to see if my car is in limp home mode. Stock boost gage measured full boost where it usually does, revs to 7,000 rpm like it usually does.

I get home, pop the bonnet and try to replicate the problem by loading up the car electrically. Nothing happens. At this point I am relieved and decide to get on with my life, by washing my car.

I drive my car onto the grass and just before I put my hand on the keys it stops. Like before, gauges and lights are dead. This was about an hour ago and it won't start again.

So, what have I eliminated thus far...

Battery/Alternator - Car cranks over just fine

Fuses - All fuses (or at least the ones I can get at) are not blown

Relays - Like fuses, none of the relays show signs of damage

Immobiliser - Immobiliser doesn't cause the dash to die...

My car is stock except for alarm and immobiliser...

Things that I have found odd...

Disconnecting and reconnecting my CAS used to cause some relays to energise and de energise. It doesn't any more.

Fuel pump won't prime at all.

Windows won't go up

Like I said, I'm really at a loss. I wanted to go to Oran Park tomorrow, but it looks like that has gone to shit as I need to fix my car before Monday so I can get to work.

Thanks for any imput

Cass

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Cassbo Grand Master

Cassbo

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  • Author
Posted
car wont start with less than 12.6 V

so it can crank over, but not start - if its cranking and no dash lights - its definately the battery voltage issue

just jump start it

Just tried to jump start my car, didn't change a thing. Starter motor works really well though lol

To tell you the truth I'm relieved, if it started that probably would have meant I would be up for an alternator as I'm pretty sure cars aren't usually designed to run off the battery while driving :)

I'm now gong to attack the relays under the dash. I have a feeling that my problem is something to do with them...

Thanks for the help :happy:

Dany Explorer

Dany

Posted
Posted

I had the same problem a few weeks back,

-car shut off during driving

-no power steering/indicators/power windows/dash light

-stereo working fine

-it turns over but wont start

Problem turned out to be that on the back of the immobilizer circuit board, one of those small solder has burned off.

Cassbo Grand Master

Cassbo

Posted
  • Author
Posted
I had the same problem a few weeks back,

-car shut off during driving

-no power steering/indicators/power windows/dash light

-stereo working fine

-it turns over but wont start

Problem turned out to be that on the back of the immobilizer circuit board, one of those small solder has burned off.

I pulled apart my immobiliser, everything looks pristine there. However...

After swapping a relay under the dash with a relay that I had randomly lying around... my car now starts! :) One of the terminals on the old relay was loose... I'd say it rattled itself to death getting me home :happy:

Anyways, I'm stoked! Well... a little pissed off that I missed out on Oran Park today but still, it now works!

Thanks for your help Chris/Daniel/JOn (who didn't post here... but yeah) :P

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