| Re: Battery and/or starting issues [message #189060 is a reply to message #189043] |
Sat, 03 November 2012 10:59   |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma:
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I'm with George on this one - everything I read points to a weak chassis battery (and yes, five years CAN be a lot for a battery, and is an eternity for a battery that's been overcharged dramatically by the standard GMC buzzbox). I've got a feeling that'll fix what ails your coach without doing anything else. Bigger starter cables are nice enough, but the original ones should do a fine job spinning any healthy V8, so this mod would have to go down as "nice but not necessary". This is coming from a guy who's going to be installing a length of 0 gauge wire from the house batteries up front back to the distribution and inverter today!.
My coach had a similar problem when I bought it. It would start fine on the "chassis battery". It turns out that the PO had cobbled the wiring together to "hide" a VERY bad chassis battery and it was actually one of the house deep-cycle 12V batteries that was hooked up to the starter, with the chassis battery paralleled with the other house battery. As a result, the house battery circuit would drain itself overnight (with the old chassis battery sucking the good house battery down to under 10 volts). A new chassis battery, some restorative wiring and things were all great again.
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
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