Patrick Grounding

[marilyn & arden sniffen]

Patrick: you metioned grounding the other day. Well I went out to start her
up the other day and "click". All bats are full charge. Where are the best
places to start checking? It sounded as if you might know exactly where to
look first.Ca.tips its hat to Fl. Arden

 

[patrick flowers]

>
> Patrick: you metioned grounding the other day. Well I went out to
> start her up the other day and "click". All bats are full charge.
> Where are the best places to start checking? It sounded as if you
> might know exactly where to look first.Ca.tips its hat to Fl.

Arden,

Well, once again I'm at work without benefit of manuals or a wiring
diagram, but I'll give it a shot.

This could still be a bad starter or solenoid. Or even a bad positive
cable. You can hook a booster cable from the battery negative terminal
to the engine block(the a/c compressor mount is probably the easiest
place to reach) to verify that it's a bad ground. If the starter spins
with the booster cable in place, then it probably is a bad ground.
Check the negative cable from the battery first(both ends! - I've seen
factory cable terminals just pull off!) and clean the connections.

Also, if you have both coach and house batteries up front, be sure
they're connected properly. In searching for my grounding problem, I
discovered that the PO had connected the house negative cable to the
coach battery. My solution was to tie the negative side of both
batteries together with another cable.

As always, the rest of you folks feel free to jump in where I've messed
up.

Good luck!
Patrick
- --
Patrick Flowers
Mailtoatri63

The GMC Motorhome Page
http://www.gmcmotorhome.com

 

[russ bethel]

I have found that old battery cables, including grounding straps, tend to
corrode and should be replaced after several years. Storage seems to make
corrosion worse. I would change all the battery cables, except the long one
that runs from the rear to the front.

 

[jim bounds1]

>
> I have found that old battery cables, including grounding straps, tend to
> corrode and should be replaced after several years. Storage seems to make
> corrosion worse. I would change all the battery cables, except the long one
> that runs from the rear to the front.

Dear Replace that wire,

Not only do I agree, but I would tell you to replace the 2 ga. wire to
the rear as well. It gets chaffed and you find out why they put in the
80amp. sure power circuit breaker in line if that happens.

Sitting does tend to make the wire corrosion more pronounced, I found a
weak generator start problem today was caused by no ground wire at all
to the generator. I would check to see if you have a 4 ga. or larger
ground cable to the chassis from the generator. This would not only aid
in starting of the unit but also would help the alternator to charge the
battery.

There are other modifications I would make to the primary power circuit,
give me and we can discuss them. 1-877-275-4462

Jim Bounds