Reply
 
Thread Tools Display Modes
 
Old 07-21-2019, 07:32 PM   #1
New Member
 
Join Date: May 2019
Posts: 3
Momentary electrical loss

Anyone ever had their bus just lose electrical power, momentarily, but long enough for the engine to stop? Diesel. 5.9 12 valve Cummins.

Found a loose cable on the battery but that wasn't the issue.

Always happens when slowing to stop or turn. Hasn't happened when accelerating or over about 25 mph. Even when stopped, electric will click on and off. When it clicks on I start the engine and quickly get rolling and off I go. When it shuts off, entire dash is losing power as if you turned key off. Bad ignition switch maybe?

Chassis ground appears to be good.

I'm baffled. Thanks!
RussMarlowe is offline   Reply With Quote
Old 07-21-2019, 07:51 PM   #2
Bus Nut
 
Join Date: Sep 2018
Posts: 339
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
When you are running with the lights off do they go off too? You probably have more than one ground. You could also have a bad cable inside the insulation. You probably have a primary wire from the battery the underhood fuse panel. You might try having someone sit in the driver’s seat watching the dash while you jiggle wires.

If you think it’s the ignition switch, jiggle that.
Danjo is offline   Reply With Quote
Old 07-21-2019, 08:35 PM   #3
Bus Crazy
 
turf's Avatar
 
Join Date: Apr 2013
Location: Colorado
Posts: 1,597
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison AT1545
Rated Cap: 2
to the best of my knowledge, a 12 valve will run with or without any electricity. at least my '93 will.

i have 2 hot leads from the battery. one goes to the starter, the other powers the dash. check that second hot wire.

perhaps its your fuel shut off solenoid. I'm not sure of the polarity but it the power is holding it open, it sure might shut down the motor.

i disconnected my fuel shut off solenoid and switched to an old fashion pull knob to shut the engine down. now once in a while i'll stop for a rest stop and turn the key off and keep the engine idling. i forget to key back on when i start up and driving down the road i see dead gauges, which is my reminder to key on again. they run fine without electricity.
__________________
.
Turfmobile Build Thread
turf is offline   Reply With Quote
Reply

Tags
electical, loss of power

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 02:45 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.