TomBaker Posted April 4, 2015 Report Share Posted April 4, 2015 Hi guys,Got a 1.4 lupo and its been running fine until recently. The car doesn't turn over when the engine is warm, starts up fine once I've left the engine to cool down for a while but just unsure of what the issue could be. Have just changed the starter motor today and that didn't solve the problem! Anyone had this issue before?Cheers,Tom Quote Link to comment Share on other sites More sharing options...
Rich Posted April 5, 2015 Report Share Posted April 5, 2015 ignition circuit is a pretty easy one to diagnose, pretty standard stuff too.bridge the live and the exciter with something when it won't start. Quote Link to comment Share on other sites More sharing options...
Migwell Posted April 5, 2015 Report Share Posted April 5, 2015 Tom. There's lots of possible causes, if you've got a volt meter connect it from battery negitive to the thin wire on the starter motor solenoid . (There will be two connections going to the starter solenoid one direct from batt positive the other from ignition switch) you want to see if to register 12v or battery voltage with key turned to the crank position. If you haven't a volt meter get a 12v bulb and some wire. If you get 12v then check the other wire from the battery to starter, check earth strap before condemning the starter. These wires are larger core and a wiggle check is sometimes all that's needed to find a loose connection.If you don't see 12v be careful but try turning the key to crank position and at the same time gently 'rock' the key in the lock up and down or side to side, I've had many times a burn contact in the ignition switch that can be identified by doing this. But be careful it's small movements don't break the key. Good luck Quote Link to comment Share on other sites More sharing options...
Migwell Posted April 6, 2015 Report Share Posted April 6, 2015 Tom. There's lots of possible causes, if you've got a volt meter connect it from battery negitive to the thin wire on the starter motor solenoid . (There will be two connections going to the starter solenoid one direct from batt positive the other from ignition switch) you want to see if to register 12v or battery voltage with key turned to the crank position. If you haven't a volt meter get a 12v bulb and some wire. If you get 12v then check the other wire from the battery to starter, check earth strap before condemning the starter. These wires are larger core and a wiggle check is sometimes all that's needed to find a loose connection.If you don't see 12v be careful but try turning the key to crank position and at the same time gently 'rock' the key in the lock up and down or side to side, I've had many times a burn contact in the ignition switch that can be identified by doing this. But be careful it's small movements don't break the key. Good luck Quote Link to comment Share on other sites More sharing options...
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