Quantcast




All times are UTC - 6 hours [ DST ]




Ask A Question Reply   
Author Message
 
the battery discharge in the night , i have to disconnect it every night
always there is some thing wrong , stop working , and come back again
normally in the morning when I attach the battery , or after restarting , but some times while running ,
some times together , some times separately
whippers
dashboard lights
fuel gauge
radio
heater
battery red light comes on


Share on FacebookShare on DiggShare on DeliciousShare on TechnoratiShare on TumblrShare on Google+
   
Reply with quote  
* Search   
 
User avatar

contributions: 1931
Images: 37
Location: Oregon
I would start with having your battery, starter and charging system checked. you may have to take it to a shop and have those tests done. If that all checks out good then you will need a battery draw test. If it goes dead every "over night" then you may have to leave it with the shop. They will have to let the car sit with everything off for an hour for the computers to go into sleep mode and see what the battery draw is. If it is excessive they will need to try and find what circuit the draw is coming from.


   
Reply with quote  
 

contributions: 1
thanks
how can I do the test myself ?


   
Reply with quote  
 
User avatar

contributions: 1931
Images: 37
Location: Oregon
you would need an inductive amp clamp and appropriate meter to read the amps being used by the vehicle while the vehicle has everything turned off. Put the clamp around the positive or negative cable to the battery. Since the current has to complete a circuit to cause a draw, the polarity on the battery doesn't make a difference, it has to get from one side of the battery to the other side to complete a circuit draw. The draw after all systems have gone into sleep mode should be .03 amps or less.

if the draw is more, then you have to start searching what circuit is causing the draw. The alternator could have some bad diodes that allow current to be drawn backwards through the alternator. There could be a computer relay stuck in the on position, or just not turning off. You could have a courtesy light that isn't turning off. You have to look for anything that could complete a circuit to the battery. Without and inductive amp clamp you would need a good ammeter. One that measures in actual amps but you can scale it to match what you are checking. Don't use a meter that says it measures mAmps because that's milli-amps and you will burn up the meter with the draws in a normal vehicle.


   
Reply with quote  
Ask A Question Reply   


   Similar Topics   Author   Replies   Views   Most Recent 
New Articles View the first driver side headlights dont work. wiring problem i think

in Chevy Trucks

Joshp

1

838

Wed Oct 07, 2015 11:20 pm

carriedi View the latest

New Articles View the first Attachment(s) broken connection wire

in Chevy Suburban

kwest1168

1

549

Mon Jun 15, 2015 2:28 am

carriedi View the latest

New Articles View the first Attachment(s) New battery leakage or overheat on a 2002 GMC ENVOY

in GMC Trucks

sedar59

5

1035

Sun Dec 07, 2014 8:45 pm

carriedi View the latest

New Articles View the first 2003 GMC Envoy battery not charging light

in GMC Trucks

skcross

1

1259

Sat Aug 16, 2014 11:40 pm

carriedi View the latest

New Articles View the first 1993 chevy 1500 battery light on

in Chevy Silverado

redneck63

1

1167

Mon Apr 06, 2015 5:38 pm

carriedi View the latest

New Articles View the first 4 wheeldrive problem

in Chevy Blazer

stillfishing

1

618

Thu Jul 17, 2014 11:50 pm

carriedi View the latest

New Articles View the first 06 envoy idle problem

in GMC Trucks

Beginnermechanic

1

758

Wed Mar 23, 2016 10:17 am

carriedi View the latest


All times are UTC - 6 hours [ DST ]



Search for:
Jump to:  
Contact Us