Lexurf IV.

[gwh200]

OK, I've sorted it!

Nothing to do with my additional wiring, it was a wire that I forgot to snip.

There's the STA wire (Crank signal) at the ECU that I connect to when wiring my own start circuit relay. Turns out I er......forgot to snip this wire to isolate it from the original start circuit, thus sending a constant 12v feed to the starter solenoid when the engine starts.

Am I a TWONK or what!!!

Certainly not!!
Good bit of discoveryering sir.

[Diezel Weazel]

OK, I've sorted it!

Nothing to do with my additional wiring, it was a wire that I forgot to snip.

There's the STA wire (Crank signal) at the ECU that I connect to when wiring my own start circuit relay. Turns out I er......forgot to snip this wire to isolate it from the original start circuit, thus sending a constant 12v feed to the starter solenoid when the engine starts.

Am I a TWONK or what!!!

Well done Proffessor

Jess
"Cos short cuts can cost more in the long run"

[Albannach]

Am I a TWONK or what!!!

Only if you do it again.

[BUSHWHACKER]

OK, I've sorted it!

Nothing to do with my additional wiring, it was a wire that I forgot to snip.

There's the STA wire (Crank signal) at the ECU that I connect to when wiring my own start circuit relay. Turns out I er......forgot to snip this wire to isolate it from the original start circuit, thus sending a constant 12v feed to the starter solenoid when the engine starts.

Am I a TWONK or what!!!

[Vagrant No2]

Not the control relay Vince, the actual solenoid on the starter itself. Could also be the return spring on the starter dog is weak. That would hold the plunger in and make the contact until you disconnect the battery, then it would probably release.

Ign switch contacts buggered? you need to check for volts on the solenoid coil feed (without wishing to state the bleedin obvious - the small wire )when you release the key back to the ign on position after starting. If there's still volts there its a wiring issue. If there isn't, its the solenoid contacts sticking / welding themselves. Assuming its a conventional system, it cant be anything else.

Check the feed to the solenoid first - easier than getting the starter out.

Thats wot I was trying to say , but you typed more then me .
I only suggested it as had it happen before .

[Apache]

Not the control relay Vince, the actual solenoid on the starter itself. Could also be the return spring on the starter dog is weak. That would hold the plunger in and make the contact until you disconnect the battery, then it would probably release.

Ign switch contacts buggered? you need to check for volts on the solenoid coil feed (without wishing to state the bleedin obvious - the small wire )when you release the key back to the ign on position after starting. If there's still volts there its a wiring issue. If there isn't, its the solenoid contacts sticking / welding themselves. Assuming its a conventional system, it cant be anything else.

Check the feed to the solenoid first - easier than getting the starter out.

[gwh200]

Noble sentiments sir. meanwhile tintin is coming to pick me up and transport me to a while evening of knuckle skinning lunacy. Yup...it's hummer time...well gearbox out and rebuild and transfer case etc etc,

[BUSHWHACKER]

Sticking solenoid by the sound of things. If it sticks in, switching ignition off wont stop it. The connection to the starter goes from battery, thru solenoid contacts to starter. The only thing the ign key does is provide power to the solenoid coil itself. If it sticks, it matters not whether there's power to the coil.

I cant think of anything else it could be.

S'what I/we thought too, but tried a new relay, still the same.
Disconnecting the battery stops it, but when you crank the engine again the starter stays running......again!
I think it's a starter out job anyway, as I'll want to check for any damage and inspect the contacts. Wouldn't want Graham to have to do it, his job is to drive it.

[Apache]

This is a weird one though.
Crank engine, engine starts, starter won't disengage.
Switch off, remove key, starter still trying to start engine!!!!!

Jump out, rip earth cable off battery!

Splinters in finger tips from mucho head scratching.

Sticking solenoid by the sound of things. If it sticks in, switching ignition off wont stop it. The connection to the starter goes from battery, thru solenoid contacts to starter. The only thing the ign key does is provide power to the solenoid coil itself. If it sticks, it matters not whether there's power to the coil.

I cant think of anything else it could be.

[gwh200]

Bypass stock circuit and rewire with a start button, job done..done this a few times on the old fords for different reasons though

It is a whole new starter circuit, that's why it's weird.

[an1mal_69]

Bypass stock circuit and rewire with a start button, job done..done this a few times on the old fords for different reasons though

[gwh200]

If it was stuck, wouldn't it run all the time?. As Soon as you take the feed away it stops turning and it resets for the next try.

[Vagrant No2]

Sticky starter solinoid happened to me on a vehicle before . Starter contacts stick together and need a slap on starter to release . That or the soliniod actuator is sticking in the housing causing same thing .

[gary-r]

sounds like a stuck relay or a permanent feed - just throw the starter away vince and fit a starting handle - hehehe itll keep you fit

[gwh200]

It's almost as if the starter circuit has something wired into it, which keeps it open(obviously). But there's nothing on the starter circuit except starter, battery, relay and ecu. Maybe old immobiliser or something in the original starter circuit ?