In article >,
aRKay > wrote:

> In article >,
> gn643202 > wrote:
>
> > On 04/20/2012 01:20 PM, aRKay wrote:
> > > The battery was removed for about an hour. I reinstalled it last night
> > > and it still would not start. This morning I got up and it is starting
> > > perfect.
> > >
> > > My guess (or wishful thinking) is disconnecting the battery may have
> > > forced a reset and maybe this is why it is starting today
> >
> > Was the connection good. Did you clean the contact points real
> > good between the battery and the cable?

Very interesting and Jerry's comment got me to thinking. If you recall
from my first posting I have had a delay for some time from when I put
the key to START until the the starter does its thing. I have assumed
this 3 to 5 second delay is normal for one of the computers to run the
starting sequence to check everything before commanding the starter to
do its thing. I am still not clear if the BCM controls the starting
sequence.

Today the C5 is starting better than ever and there is NO delay in the
starting sequence. The starter is working perfect.

My revised (wishful thinking) is two things may have fixed the starting
issue. One is the Dad comment that removing the battery forces the
computer to reset. I had the battery out of the car for at least an hour
taking back to Wallmart for test. The other item is making sure the
negative terminal is connected good to the battery. There is little room
to get a wrench on the side terminal and something tells me the
installer at Wallmart last year may not have made a good connection.
When I removed it I was surprised at how easy it was to remove the side
terminals. I know my connection was good because I used a small special
side terminal wrench that I keep in the car at all times. I picked it
up at Wallmart when I purchase the battery in Aug 2011.

A half-assed negative battery terminal connection could cause or
contribute to the starting issues.

Stay tuned to see if the fix really works. It is working perfect today.