Help me diagnose this please ... Turned the key and the starter worked for about one second, but then the entire electrical system blacked out. After a few seconds of trying again, the car simply started. The clock was now flashing indicating that indeed we lost full power to everything. All seamed well. Strong cranking, battery appears strong, etc... Days went by since that first occurrence, but then last night it happened again. In a similar fashion I turned the key and the starter kicks in for a second then .... electrical blackout. This time it did not come back. Just for the sake of it I tried to boost the car. It worked, car started and I drove away. But within 100 yards the car stalled and could not be started again. At this point the battery does appear drawn. I try to boost it again but this time the starter is sluggish, even when boosted, and the car is not able to start.
I’m thinking a loose ground wire somewhere that is making intermittent contact. Or maybe a loose battery post terminal. Sent from my iPhone using FerrariChat
Are you boosting the battery at the battery itself or at the battery terminals in the engine bay? Image Unavailable, Please Login Check the tightness of the nuts on the engine bay terminals. Sometimes they are not tightned properly after an engine change. Intermittent terminals here will affect battery charging, starter, etc.
I tested the battery first thing. While 7 years old, it appears to be good, holding a charge and cranking out 700 amps. I was sure it was that as well, but now that I tested it I am not convinced. May buy a new one anyways.
It is front battery. I am going to start the diagnostics today and will be checking this area near the switch for sure!
Hmmm, not sure what that is but I assume it is close to the battery and part of the wire routing. I will disconnect all such plugs clean them. The fact that the entire electrical system blacks out indicates an open circuit on either the positive or ground somewhere "near" the source.
