Have a 2001 sierra 4 x 4 5.3 liter.My problem is when the temp. drops below 10 degrees & the truck sits for 6-8 hrs the truck will not turn over or make any sounds to turn over on the first attempt.After turning the key back off I can turn key & the truck starts up fine.I just replaced the battery & still does the same thing. Does anyone have any ideas. Thanks in advance