Car starts, doesn't start depending on whim

ignition
electrical-wiring

#1

I have a 1999 Saturn SW2. Last month when the weather was extremely cold, the radio, door bells and ignition quit working. Only for a moment and then it worked. 6 times in two days. then no more problems until…



this week weather is extremely cold, door bell and ignition and radio quit for two days. Today it did not work at 1 p.m., then at 2 p.m. it cranks right up and goes.



All other electrical things continue to work even when problem is present, power windows, horn, dash lights, headlights, all okay throughout.


#2

Start with a thorough cleaning of the battery terminals and cables. Clean the cables not only at the battery end, but follow them to all contact points on the car and check/clean/tighten all of those as well.