Starting and shutting down my 2003 NT 7395

[HenryH001]

I sometimes have problems with my dash gauges and various lights working incorrectly or not working at all. I’ve noticed that when starting the MH if I turn the key on but not to the starter position and wait a full minute I don’t have problems. When shutting it off I make sure everything like the radio, heater and all lights are off before turning the key off. Shutting it off with things on causes problems at start.

Has anyone else experienced this?

[Iceclimber]

After 31 views and no responses I'd say you have a genuine mystery. Never heard of such a thing but I'd likely take my coach to an auto electric specialist if you don't have a good on site guy.

I'd also methodically check all the 12v fuses and relays but I am just guessing. If you have a wiring diagram that can be helpful but hopefully your board is labeled with all the ignition relays...which by the way are not expensive to just replace if they are suspect.

[FusionKing]

Originally Posted by HenryH001

I sometimes have problems with my dash gauges and various lights working incorrectly or not working at all. I’ve noticed that when starting the MH if I turn the key on but not to the starter position and wait a full minute I don’t have problems. When shutting it off I make sure everything like the radio, heater and all lights are off before turning the key off. Shutting it off with things on causes problems at start.

Has anyone else experienced this?

I believe your ignition switch may be giving you a problem.
Mine is a little goofy but I have the wiggling process down pat,
I think I seen a thread or 2 on it in the Freightliner section

[HenryH001]

Originally Posted by Iceclimber

After 31 views and no responses I'd say you have a genuine mystery. Never heard of such a thing but I'd likely take my coach to an auto electric specialist if you don't have a good on site guy.

I'd also methodically check all the 12v fuses and relays but I am just guessing. If you have a wiring diagram that can be helpful but hopefully your board is labeled with all the ignition relays...which by the way are not expensive to just replace if they are suspect.

In the long term that is what I need to do. For now I’m just going to ignore it for two more weeks til I get to my new to me S&B and then deal with it after it warms up. I’m currently in the middle of an ice storm.

I suspect it’s faulty grounds. Or I can compare it to just unplugging a computer as opposed to shutting it down. Most vehicles today have onboard checks that takes a few seconds. This MH just takes a minute rather than a few seconds.

A lot of people with automatic transmissions will stop and put it into park, set the parking brake and think nothing of it. The correct way is to set the parking brake, put it in neutral and then take your foot off the brake to release the pressure. Turbochargers need to idle for a few minutes to cool off before turning off. Starting up an air brake you need to let the pressure build up and then turns the engine off and hold your foot on the brake. I think it’s a minute that it should not drop below the emergency brake pressure. Then you need to pump the brake and make sure the emergency brake pops out. This all takes about two minutes. Airplanes have a definite shutdown procedure. I think the slang aviation term is cutting trim.

So is there anything really wrong? I hear all kinds of stories about how peoples MH have so many electrical problems. I’m not having those problems when I just let it do it’s thing.