96 GTX, no click, no start

[btkl]

1996 GTX - 5640 GT Won' start.
Had a weak starter, original equip. so I am not dissapointed.
Would beep, crank sometimes fast, mostly slow.
Battery is new and charged.
Disconnected battery, changed starter, now no beeps, no click.
Jumped accross selenoid, cranks like a banchy.
All fuses replaced! Connectors re-seated.
What next?
Is this really a bad solenoid? Anyway to test it by itself?
What could I have done to destroy it?

 

[derek]

no beeps is not solenoid. 720 motor? or 800? if the plug comes loose on front of motor it will do this. sometimes beep-crank 1 second-stop. sometimes no beep nocrank. bad sol will click but not pull down enuff to engage starter. you could try firing the solenoid with a jumper wire, but it isn't easy to hook up. i think you knocked something loose. rule of thumb; if you did something and something else went wrong-you just did it.

 

[kustomkarl]

:agree: Yes, re-check all your connections and double check what ever you removed and re-placed. Let us know what you find.

Karl

 

[btkl]

Plug ok

I checked the plug, it seemed ok, but I took it out and re-seated it anyway.
I don't think I ever got near it when changing the starter.

 

[kustomkarl]

Check the continuity of the Safety Switch Lanyard. It is normally "open". The color codes of the 2 wires are Black and Black/Yellow. These feed back into the electrical module box. The Start /Stop switch is normally "open". The color codes of the 2 wires are Black, that goes direct to ground, (to stop the engine), and the Yellow/Red that goes to the electrical module box. Check the continuity of this switch too. I hope this helps. Keep us posted...

Karl

 

[btkl]

I used to be able to get the solenoid to engage without the saftey lanyard installed.

I tested the start/stop switch by unplugging the harness as it goes into the front storage bin. Meter shows it open and if I push the button the meter shows continuity asd I beleive it should. Still nothing, even if I bypass the start switch with a jumper.

 

[kustomkarl]

Inside the box where the starter solenoid is is a 15 amp fuse from the Module. Check it to be sure it isn't blown. There is also a Yellow/ Red+ wire going to the solenoid to trigger the starter and a Black wire going to ground- on the coil. Check continunity on the wires with a multi meter.

Karl

 

[btkl]

I tested like you said.
Yellow/red wire of solenoid connector to the black ground lug of coil.
This is an open circuit, no continuity.

 

[kustomkarl]

When you push the start button, the Yellow/Red will have power+ going to it to the solenoid. The black wire- allows the circuit to complete. If no power or ground...no start...

Karl

 

[btkl]

Same test as last, no continuity when I depress the start switch, I did it again by jumpering accross the start switch at the harness in front compartment, same result. Same test shows no voltage on the meter.

 

[kustomkarl]

That Yellow /Red wire comes from the Module box. Inside the box is a 5 amp fuse check it. There is also another relay holder that has a 5 amp fuse in it. It has a Red/Black and a Red/Purple, Purple/Black and a Black to ground wire coming out of it. Check this fuse also. If all checks out ok, then it must be the module box is bad. Check the fuses first.

 

[btkl]

I checked them this AM, actually changed them, I check again.
There are two sides to the module box.
Will I need both?

 

[kustomkarl]

I believe yes as the wires feed into each and end up at the solenoid, to roll over the starter from the switch.

 

[btkl]

To test the solenoid
I am going to disconnect the large hot leads
ground to ground, but is the positive 12 volts?
I should hear a click, yes???

 

[kustomkarl]

To test the solenoid just leave the wires attached as they were and jump across the 2 larger wires.use a 14 guage insulated wire and quickly just jump across the solenoid. The starter should rollover.

Karl