I put a new alt. and batt. A and vehicle still discharges
Oct 4, 2015 at 5:51 PM
1994 Pontiac Transport discharging
1994 PONTIAC TRANSPORT
ARTNAT42
- MEMBER
- 1 POST
- FOLLOW
Advertisement
OK
DISCHARGING
AS YOU DRIVE? OVERNIGHT?
DO YOU KNOW IF THE ALTERNATOR IS CHARGING THE BATTERY?
HOME TEST
OBTAIN A VOLTMETER (A CHEAP ONE IS FINE) (HARBOR FREIGHT HAS A DIGITAL ONE FOR ABOUT $5)
SET THE VOLTMETER TO "20 VOLTS DC" (IF 20 AIN'T A CHOICE, ANYTHING JUST ABOVE 12 VOLTS DC WILL WORK JUST FINE)
THIS ENTIRE TEST IS AT THE BATTERY TERMINALS
1) TEST BATTERY W/ THE ENGINE OFF- RESULTS SHOULD BE ABOUT 12.5 VOLTS OR SO
2) FIRE IT UP- DO THE SAME TEST- RESULTS SHOULD BE AT LEAST 13.8 VOLTS IF THE BATTERY IS BEING CHARGED
WHAT ARE YOUR RESULTS?
THE MEDIC
DISCHARGING
AS YOU DRIVE? OVERNIGHT?
DO YOU KNOW IF THE ALTERNATOR IS CHARGING THE BATTERY?
HOME TEST
OBTAIN A VOLTMETER (A CHEAP ONE IS FINE) (HARBOR FREIGHT HAS A DIGITAL ONE FOR ABOUT $5)
SET THE VOLTMETER TO "20 VOLTS DC" (IF 20 AIN'T A CHOICE, ANYTHING JUST ABOVE 12 VOLTS DC WILL WORK JUST FINE)
THIS ENTIRE TEST IS AT THE BATTERY TERMINALS
1) TEST BATTERY W/ THE ENGINE OFF- RESULTS SHOULD BE ABOUT 12.5 VOLTS OR SO
2) FIRE IT UP- DO THE SAME TEST- RESULTS SHOULD BE AT LEAST 13.8 VOLTS IF THE BATTERY IS BEING CHARGED
WHAT ARE YOUR RESULTS?
THE MEDIC
Image (Click to enlarge)
Oct 4, 2015 at 7:02 PM