| Author |
Message |
captain ron (Captain_ron)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 20, 2006 - 12:25 pm: | |
I have a few gremlins in my bus. My cruise quit working, my marker lights now come on with headlights I believe they were only woorking before on the marker light switch. my bay lights quit working also. some times I have one brake light some times I have two. I just replaced the bulb. |
Ed Jewett (Kristinsgrandpa)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 20, 2006 - 12:52 pm: | |
Ron, start checking your ground connections for corrosion etc. When something doesn't make sense it is usually the gnd/neutral.
Ed |
Kevin Hatch
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 20, 2006 - 8:38 pm: | |
I also have a gremlin. My headlights intermittantly just turn off, but it's just occasionally. I haven't had it happen while driving and I hope it never does. Don't know where to begin! |
Casper4104
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, April 20, 2006 - 10:18 pm: | |
Hey there Cap,
Maybe you need a Gremlin Bell,,, look here:
http://www.gremlinbells.com/
(No I don't get a cut, I just thought they were cute).
Please order one and let us know if they work.
Casper4104 |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 12:05 am: | |
Ditto Ed's comment regarding the ground. Weird things abound,
with a faulty ground! (holy carp, that rhymes! I hate that!!)
With the headlights, Kevin.... Is it a 12 or 24v bus? Some of
the MCI series used a voltage converter to go from 24 to
12 volts for the headlights. If that converter is overheating,
it can cause intermittent outages.
Ed's offering is very valid. The ground lead(s) can become
corroded and lose contact intermittently. The symptoms
can be anything going weird, since the ground is common
to the entire circuit, and can affect everything in that circuit.
Happy hunting! |
Kevin Hatch
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 12:12 am: | |
Yeah you're probably right on the ground issue. I haven't had a chance to investigate yet. Hopefully this weekend. The bus is a GM 4905 with 24v lamps. |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 12:18 am: | |
You might want to check the light switch also. Corrosion can
cause the switch to open after it's heated through use, killing
the circiut. |
TomNPat
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 5:01 am: | |
On our 9 the marker/tail lights come on with their switch, also come on with the headlight switch. I think they're working like they were designed.
TomNPat |
Ed Jewett (Kristinsgrandpa)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 10:08 am: | |
Kevin, some circuit breakers, on essential items, have an auto reset function, when they trip they reset automatically to keep the lights on.
If they get old and weak it doesn't take as much load to trip them, thus the cycling of the lights, try switching circuit breakers with another of the same size.
Also check your voltage when they trip off, with the engine off or at idle you may have lower voltage and low voltages raises the current on a load which would cause a weak breaker to trip.
HTH Ed. |
Kevin Hatch
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 12:34 pm: | |
Great info! Where can I find wiring diagrams for my 4905? I have pulled off the fuse panel cover, and the switch plates, and there is a lot of rust and crap on everything. Is there a semi painless way to re-work all of that? |
Kevin Hatch
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 12:36 pm: | |
BTW Capt. Ron, sorry, I didn't mean to hijack your thread. |
Craig (Ceieio)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 1:09 pm: | |
Ron - the marker lights on my MC-7 come on with the headlights, or can be turned on separately via the marker light switch. Sounds like your 8 is working the same way.
Craig - MC7 Oregon
|
Gary Stadler (Boogiethecat)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, April 21, 2006 - 1:23 pm: | |
Ed's suggestion is a good one. I had exactly that problem in my Crown... headlights going off at the most inopportune moments, just to come back on 'by themselves"... and they weren't flickering as they would with a bad wire, ground, or connection.
Drove me nuts until I figured out that almost all of my 1962 auto-resetting breakers now tripped at about 2/3 of their rated current, simply due to old age. Replacing them fixed all the gremlins in a heartbeat!! |
John Jewett (Jayjay)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, April 24, 2006 - 9:28 pm: | |
Kevin, on a 4905 the self reseting circuit breakers for the headlights are on the front wall of the small storage compartment under the drivers feet. If you have replaced headlamps recently the newer ones draw slightly more amperage than old ones. They get old and weak and need replaced. Mine failed at night while eastboud off the face of the Great Divide on I-90. The only thing saved my life was the tail lights of the 18 wheeler ahead of me. They came back on in a few minutes, but cycled several times before I got to the next truck stop. SCARY! ...JJ |