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Hi all r51 battery drain on start up
Posted: Fri Mar 27, 2020 2:31 am
by bemqld
Hey all got a problem 2006 pathfinder r51 battery fully charged even tried with new battery starts at 12.8v then turn key drops straight to 9.2v-9.5v and sluggish start but does start any ideas
Posted: Fri Mar 27, 2020 9:23 am
by HiBRiD109
If yourve tried a new battery, its most likely either cables/connection or starter going out.
Posted: Sun Mar 29, 2020 7:33 pm
by jhg120
I have the same problem. 12.20v, tested all night, put on meter in the morning, still 12.20v, but when I go to start, mine drops to 8.8v and is very very sluggish to start. Mine is 2011. I've taken off all connections, cleaned up really nice, did not solve it. Batter is 1.5 years old.
If it's the starter, how do you go about diagnosing that??
Sorry to hijack, maybe we figure both out together.
Thanks
Posted: Thu Apr 02, 2020 9:57 am
by BullDozer
Sounds like its dropping before even starting the car? Or while cranking? Not sure what should be the voltage after key in ignition to start postition. Does it stay at 8.8 for over a minute? Maybe parasttic draw. Do you hear anything like fuel pump? Maybe try pulling fuses ?
SMJ need your help
Very good channel, might help you out...
Posted: Sun May 03, 2020 11:38 am
by TooMuchControl
https://www.youtube.com/watch?v=2gR7SJ0uDZQ
Not sure if yu every figured it out, but this channel is worth a look for many things...
Posted: Sun May 03, 2020 3:09 pm
by palmerwmd
I recently had a battery that went bad within 14 months or so.
No parasitic drag (checked via meter)
I think it may have been weak from Day 1 ..