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Old 11-18-2013, 01:28 AM
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vstech vstech is offline
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,389
... 12.9! wow that's high. it should not be over 12.75... but when you turn on the key, the GP relay kicks on, dropping your voltage to around 10.6 then once you start the car, the relay should shut off, letting your alternator bring battery voltage back up. if the relay stays on, it'd take a big alternator to keep from discharging the battery.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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