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Old 08-06-2003, 08:06 AM   #1
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won't start using the key/no power at all

Help ! !!! i just have had this a whopping 2 weeks and already i have problems with it . it's a 1989 36 ft land yacht 454 chevy

i can start it with the "other" starter button, but when i go to use the key nothing happens no power at all i can't even get the headlights on , and the battery is fully charged and i have no power to the fuse panel, is there a in line fuse on this that i can't find ? any help would be greatfull........kevin
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Old 08-06-2003, 08:38 AM   #2
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There are a number of fusable links. I would look on the engine, just in front of the alternator to see if you have a melted one there (if they used the same configuration I have). You could also check to see if there is ca connection point on the starter that has multiple wires. There may be one there.

The assist button is combining the 2 battery systems together to get you started.

Does the alternator gauge read normal when you get it started?

Do you have power to the fuse panel once it starts?
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Old 08-06-2003, 09:31 AM   #3
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thanks for the reply , i don't know about the power at the fuse box,but after i start it everything works correctly alt gauge wipers headlamps dash ect....and when i go to start it i need to leave the key on the "on" positoin and when i go to shut it off i can use the key and it shuts right off ........but then when i go to use the key nothing no headlamps ect........thanks kevin
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Old 08-06-2003, 09:41 AM   #4
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So correct me if I am wrong here. The headlights will not work with the key off?

If they work with the key off then I would say it is an ignition switch issue, if not then I would start by tracing the leads from the starting battery and verifying voltage down the line. It could be as simple as a bad starter selinoid. Where that is I do not know but you will find it in your search.
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Old 08-06-2003, 09:53 AM   #5
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ok i just went and started it and checked all the fuses and they ALL have power and yes you are correct that the headlights will not work when the key is off ........
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Old 08-06-2003, 03:30 PM   #6
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Unhappy

i'm not getting any power to the key at all i've checked all the wires there , is there a spot where i can get the wiring diagram for just the starting system with the colors?
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Old 08-06-2003, 03:39 PM   #7
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Did you get a set of documentation from GM with the owners manuals?

It should have the wires/colors and their connections. You may be able to request it from a GM manual source for your chassis. I would start with a local GM dealer first. Someone here may have it, but I don't know who.
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Old 08-08-2003, 05:52 AM   #8
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well i think i figured it out the panel by the back door to convert it from 110 to 12 switch seems to be shorting out ......it works when i hear a clicking in the front of the motorhome but there are also 3 silonoids up there , can't wait till the book gets here !!
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Old 08-18-2003, 01:15 PM   #9
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Ok i have gotten the books and they were'nt much help , i have also gotten the convertor switch and have replaced that and still nothing......... i have checked the fuses and thay seem to be fine (as long as i hold the panel power switch on to start it , if i let that go the power to the fuse box is gone )......it does talk about a reset button to reset things and i'll be dammed if i can find it , my god this has been a nightmare.....48 more payments and this thing is all mine .........help.....
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Old 08-18-2003, 01:25 PM   #10
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Check the wiring at the solenoid terminal, power usually feeds from the chassis battery to there and then the rest of the circuits. Sounds like you are getting power from the house battery when you push the button.

John
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Old 08-18-2003, 02:36 PM   #11
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If your coach has a battery isolator to keep the "engine battery" from running down when you're using the house battery, that may be it.

Or, your engine battery may just be croaked. I'd check the engine battery first.
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Old 08-18-2003, 02:51 PM   #12
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Engine battery or wiring problem on the engine battery end of things. Not know how they tied in the house batteries I'm just going from standard GM truck building.

Check the battery cables and that includes the ground to the block and the ground FROM the block to the rest of the coach.
Typical GM way of doing things is main batery cable down to the starter. At the starter the feeds to the main fuse box tie in. There will be Fusable links in that location. Check those.

If you have the book the can probe the main harness wire into the box. Acually there will be two or three main lines into the box.
Verify all have power. On conventional GM trucks there is a terminal block on the fire wall. It's were items like HVAC blow picks up power. It's a nice convient place to tag power for other items. It will have tow terminals with nuts that like to work loose or are left loose by accident when stuff is added. look for that and verify it's tight.

Check all those solonoids. My bet is one of them has main feeds on it for the self jump feature. Make sure all the connections are clean and tight. The fact that you get no head lights and no power to the box leads me to think it's either main feed to box or what ever they did to get that Self jump feature to work. Ifi ti were mine that's were I would be concentrating on looking.
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Old 08-18-2003, 03:58 PM   #13
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thanks toaster.........i'll recheck those .....man i can't beleave the wiring on this thing , jump[er wires to cross over to this to that .

this will be fun when it runs ....right ?
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Old 02-23-2010, 05:40 PM   #14
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I just bought the same RV. 1989 36 foot Land yacht. Same exact problem. Did you ever figure it out?? The motorhome is still in the seller's driveway. Need to get it out and I am stumped.
Thanks in advance!
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