DrKai Posted September 24, 2016 Report Share Posted September 24, 2016 Just put a new battery in the gt6. Turned over a couple of times then went completely dead with ignition switch now brining nothing to life. There were no bangs, battery in right way round etc. Was assuming a fuse had gone but they all look fine. Any suggestions? Link to comment Share on other sites More sharing options...
John Bonnett Posted September 24, 2016 Report Share Posted September 24, 2016 Two possibilities. Faulty starter motor and faulty earth. Can you give a bit more information. For example did the old battery just die and everything okay before that or have you just got the engine into a state where you can turn it over. Things like that would help. John Link to comment Share on other sites More sharing options...
DrKai Posted September 24, 2016 Author Report Share Posted September 24, 2016 Old battery was ok but was cheap and had needed a charge lately so thought why not swap it out. New battery in- it turned over a couple of times then died. From then ignition switched produced nothing and no electrical items working. Put old battery back in checked all fuses and as many important connections as I could find. Still nothing. Then left it a while tried again and ignition switch returned to life but on starting just got a tink tink and it went dead again. Now back to nothing electrical working. Have checked both batteries which are fully charged. Link to comment Share on other sites More sharing options...
dougbgt6 Posted September 24, 2016 Report Share Posted September 24, 2016 Got any jump leads? Take engine out of gear! Battery +ve to starter motor terminal. If starter turns, battery OK, starter OK, earth OK. If no joy, check engine to battery earth. Try second jump lead, battery -ve to engine and try again. Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 24, 2016 Report Share Posted September 24, 2016 also give the inside of the terminal clamps a good clean to remove back to shiny lead, not the dull lacquered finish which is good at insulating check the wires to the solenoid , the brown feed to everything apart from the starter comes off this terminal post then stick a screwdriver cross the solenoid terminals ,, should geta good spark and the starter should burst into life if it doesnt suspect a starter fault the ignition brown to white wires are not fused pete Link to comment Share on other sites More sharing options...
JohnD Posted September 24, 2016 Report Share Posted September 24, 2016 DrKai, As you will know, diagnosis is not a matter of inspiration but investigation. And for electrical problems what you need is a multimeter! And a circuit diagram. Start at the battery and work along the circuit that has failed, testing for Volts. There will be a very slight drop as you move away from the battery, due to the small resistances in wires and connectors, but somewhere you will find a sudden drop or no Volts. Between the last good test point and now is your fault. The symptoms and history (see the similarity to medical diagnosis?) you have given us. Now a differential, that either a fuse has blown, or a connection failed. There are no fuses on the starter circuit, or the ignition, but the ignition switch has a live feed from the battery, a thick brown wire. Is it live, 12V or the same as battery, at the switch, with your multimeter? If not work back from there, according to your GT6 model. JOhn Link to comment Share on other sites More sharing options...
DrKai Posted September 24, 2016 Author Report Share Posted September 24, 2016 Thanks guys. Particularly enjoy the medical analogy. I'm going to pick up a multi meter tomorrow and have at it. Link to comment Share on other sites More sharing options...
DrKai Posted September 26, 2016 Author Report Share Posted September 26, 2016 Ok so initial diagnostic session complete. The following things happened in chronological order Battery back in Ignition switch on- ignition light on, everything functioning Press start button- immediate life and runs perfectly. Turn off Ignition switch on- ignition light on everything functioning Press start- 1 click and dead as before This repeats Start measuring voltages big drop over the solenoid. Ignition switch on- nothing Short solenoid- ignition light on, everything functioning. Press start button- perfect start From then on car starts fine with ignition switch and start button a further 10 times. Intermittent solenoid problem? Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 26, 2016 Report Share Posted September 26, 2016 They do go green and mouldy inside, some you can strip others are mend to destruction A malfunction of the solenoid should not affect the ignition lightsas these feed off the heavy brown on the battery side of the sol. Have you removed and cleaned the cable eyelets and cleaned the sol posts and nuts . pete Link to comment Share on other sites More sharing options...
DrKai Posted September 26, 2016 Author Report Share Posted September 26, 2016 This is what didn't really make sense to me but I assure you that's what happened. Light gone now a cleanup is tomorrows job ???? Link to comment Share on other sites More sharing options...
JohnD Posted September 26, 2016 Report Share Posted September 26, 2016 Quote "Start measuring voltages big drop over the solenoid." Is this between the two big terminals with big cables going to them to battery and starter? There should be NO volts to the starter unless the solenoid is activated. Or is it between the White wire with a red stripe going to the solenoid, and earth? That's the actuating wire, from the ignition switch, and should have no volts unless you actuate it with the ignition switch. JOhn Link to comment Share on other sites More sharing options...
DrKai Posted September 26, 2016 Author Report Share Posted September 26, 2016 Well in that case then the solenoid is perfectly normal. I was talking about the 2 main terminals. Which begs the question why does shorting it turn the ignition on:S Link to comment Share on other sites More sharing options...
dougbgt6 Posted September 26, 2016 Report Share Posted September 26, 2016 If the ignition won't start it, but shorting the two main terminals will, the solenoid unit is faulty. I've had one last 40 years and one fail in 2 years! Link to comment Share on other sites More sharing options...
DrKai Posted September 27, 2016 Author Report Share Posted September 27, 2016 I may have explained this poorly. It's push button start. The issue wasn't that it wasn't starting and shorting the solenoid made the engine turn it was that the ignition switch wasnt producing an ignition light or any electrical activity to allow the push button to be used. When I put the ignition switch on then shorted the solenoid the light came on allowing me to then use the push start. Hope that makes sense? Link to comment Share on other sites More sharing options...
DrKai Posted September 27, 2016 Author Report Share Posted September 27, 2016 I may have explained this poorly. It's push button start. The issue wasn't that it wasn't starting and shorting the solenoid made the engine turn it was that the ignition switch wasnt producing an ignition light or any electrical activity to allow the push button to be used. When I put the ignition switch on then shorted the solenoid the light came on allowing me to then use the push start. Hope that makes sense? Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 27, 2016 Report Share Posted September 27, 2016 thats ok we understand more now, i dont see why shorting the sol. produces feed to the ignition , its not related ....unless the burst of amps cranking current is making a poor connection work for a while Pete Link to comment Share on other sites More sharing options...
DrKai Posted November 14, 2016 Author Report Share Posted November 14, 2016 So after a while faffing around trying to find a fault I did the bad thing and started part swapping. A solenoid change seems to have fixed the issue so I'm a happy if slightly confused boy. Link to comment Share on other sites More sharing options...
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