Jump to content
SAU Community

Recommended Posts

Hey,

Got an electrical issue i think with my car (r33 gtst S2 sedan - auto).

Was about to leave work today (Varsity Lakes), went to start the car.. starter motor just ticked like battery was discharged..

Tried jump starting (off a running car), left it charging for 10 - 15 min, wouldnt start.. So I gave up and got a lift to the Pub.

Finished at the pub, Got a new battery (9cell 270cca, same as before but new), installed it.

Power works fine in ACC (Stereo works), but as soon as I turn it to ON (Not Start) the electrics die.. turning to START does nothing. When i leave it on start, the negative terminal gets extremely hot after a couple min... im guessing a short

Please, does anyone know what the problem most likely will be, or where to start looking?

Edited by benny bobo
  blind_elk said:
That sounds like a bad earth off the chassis to the -ve terminal. Find where the -ve cable is bolted to the body, and clean up the connection.

It did have a fair amount of crap on it, cleaned it a bit with some hot water and gave it a bit of a wiggle too..

It seemed like that was the problem..

Could a bad negative ground connection drain a battery over a few hours?

  benny bobo said:
Could a bad negative ground connection drain a battery over a few hours?
It won't cause the battery to discharge, it will prevent the battery being proper re-charged.

Funny you should mention this, I had the exact same thing happen with my 33 yesterday.

Had been driving all weekend, wife took it to the shops came back 30 mins later and it would attempt to turn over but couldn't fully crank.

Checked the voltage and the battery had drained itself. (nothing was left on in the car). Pulled the battery put it on charge for a few hours, put it back in, started no problems at all. Checked for voltage drain and there is none.. just bizarre..

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
    • My wild guess is that you have popped off an intake pipe....check all of the hoses between the turbo and the throttle for splits or loose clamps.
    • Awesome, thanks for sharing!
    • To provide more specific help, more information is needed. What Android screen? What is its wiring diagram? Does the car's wiring have power at any required BAT and ACC wires, and is the loom's earth good?
    • So, now all you need to do is connect the 2 or 3x 12v feeds into the unit to permanent 12v, ACC 12V and IGN 12V that you can find in the spot behind the stereo, and the earth, and then it will switch on with the car.
×
×
  • Create New...