Mci 102c3 6v92TA Mechanical no power main switch

[Jcparmley]

Hello

I thought I would start a new thread rather than resurrect an old one from a few years ago.  I have no power at my master switch or dash.  I have no power to the rear engine start panel.  So this is what I know so far

I have 24 volts at the battery disconnect
I have both 24 volts and 12 volts at the vanner
I have 24 volts on the buss bar in the electric junction box under the drivers window
I have 12 volts on the 12 volt buss bar in the junction box under the drivers window
batteries are fully charged
When I switch the master switch on there is no low air buzzer
The engine start button does not work
The voltage gauge does not show any life.

I don't have accurate manuals because MCI says my bus was a prototype for the early 102c3 and they don't have a accurate manual.  My bus has some parts from various different models.  Very frustrating.

[Glennman]

You probably don't have the modules and computer style cables going from front to rear junction boxes like mine does (2002 MCI). I had the exact same problem and it took several months to figure it out (due to my own lack of time to work on it mainly). What I found by isolating the front to rear cables, I had nicked a cable (8 pair plus shielding). Once I fixed that, it all came to life again. I sure hope you figure this out.

[chessie4905]

Not quite in neutral on shifter or does it have push bottons?? Maybe some switch on dash turned off? You have voltage at bus bars. Did you measure when in start position? Clean battery posts. Could show voltage, but drops to zero with any load.

[Jcparmley]

I cleaned all battery posts.  My dash has the micro switches. 

Not quite in neutral on shifter or does it have push bottons?? Maybe some switch on dash turned off? You have voltage at bus bars. Did you measure when in start position? Clean battery posts. Could show voltage, but drops to zero with any load.

[Van]

I'd double check the cables and conectors at the batt and the batt cutoff switch first.

[Jcparmley]

I cleaned and tightened all the connections at the battery.  All are tight and clean. 

I'd double check the cables and conectors at the batt and the batt cutoff switch first.

[Bill Gerrie]

Did you clean the ground connections on the frame? Just as important as at the battery.

[buswarrior]

What bus are we working on? The one in your tag line, a 96DL or an early C model, as described in the opening post?

Who gave you that line about no manuals?

'96 is not an early model.

Happy coaching!
Buswarrior

[Dave5Cs]

Hook up a push button start button to the starter to see if it starts without all the stuff between the start switch and the starter,

[Jcparmley]

The bus I am working on is the 89 102c3 with a 6v92TA mechanical.  The parts people at MCI are the ones that told me about the manuals and that my bus was a prototype bus.  They couldn't even look it up by the vin because it wasn't in their system.  I did check the chassis grounds as well.  All are tight and clean. 

What bus are we working on? The one in your tag line, a 96DL or an early C model, as described in the opening post?

Who gave you that line about no manuals?

'96 is not an early model.

Happy coaching!
Buswarrior

[Jcparmley]

Yes, I did that and that is the only way I can start the bus now.  It's a mystery. 

Hook up a push button start button to the starter to see if it starts without all the stuff between the start switch and the starter,

[buswarrior]

For the love of GAWD, put it in your tag line, your head is spinning, and so are ours...

Mechanical, electronic, i think i fell and struck my head...

Happy coaching!
Buswarrior

The bus I am working on is the 89 102c3 with a 6v92TA mechanical.  The parts people at MCI are the ones that told me about the manuals and that my bus was a prototype bus.  They couldn't even look it up by the vin because it wasn't in their system.  I did check the chassis grounds as well.  All are tight and clean.

[Jcparmley]

I don't understand what you mean. 

I am selling the 102dl3 this week and I am trying to get the 102c3 to run so I can sell it as well.  I am unable to continue my build due to a spine disease.  I am looking at purchasing a 97 Monaco motorhome so I can at least take my kids on some trips ASAP. 

For the love of GAWD, put it in your tag line, your head is spinning, and so are ours...

Mechanical, electronic, i think i fell and struck my head...

Happy coaching!
Buswarrior

[buswarrior]

At the bottom of your posts, your tag line misinforms those who aren't memorizing every thread.

Go into your profile and make an adjustment that lets those of us older demented readers not assume its all about the DL3

I don't understand what you mean. 

I am selling the 102dl3 this week and I am trying to get the 102c3 to run so I can sell it as well.  I am unable to continue my build due to a spine disease.  I am looking at purchasing a 97 Monaco motorhome so I can at least take my kids on some trips ASAP.

[Busted Knuckle]

Check the step light and chimes switch. If it was ever a hound it needs to be on to start the bus! (sort of a anti-theft trick they did!)
  BK