Maintenance oil changes, what fluids, tires etc...ask your general manitenance questions in here or look up the answer before you post.

Question about changing alternator/battery

Old 30-Nov-2011, 11:37 AM
  #1  
Senior Member
Thread Starter
 
Join Date: Jan 2004
Location: Tdot
Posts: 441
Question about changing alternator/battery

Hey guys,

I couldn't find anyone asking this specifically online so thought I'd ask here...

I'm getting my alternator changed today since it crapped out. The shop says the battery's voltage is showing 12.78 or so, below the recommended 13ish and recommends to change the battery.

Is this needed? or should I see if the new alternator will re-charge or increase the voltage back up? Not sure if this is even possible, but just wondering... the battery in the car is one of those "no maintenance" batteries...

car is a 2001 Acura 1.7EL if that makes a difference...
l2iceman is offline  
Old 30-Nov-2011, 01:44 PM
  #2  
MPR
Senior Member
 
MPR's Avatar
 
Join Date: Sep 2007
Location: Where my car is.
Posts: 5,460
Change the alt and see if the charge comes back up in the battery. It should read 13-14 volts with engine running. And 12-13 with the engine off if I remember correctly.
MPR is offline  
Old 30-Nov-2011, 03:33 PM
  #3  
Senior Member
 
PurpleStuff's Avatar
 
Join Date: Jan 2009
Location: Pick. er. ing.
Posts: 1,870
Originally Posted by MPR View Post
Change the alt and see if the charge comes back up in the battery. It should read 13-14 volts with engine running. And 12-13 with the engine off if I remember correctly.
alternators arent cheap mike. even 12.78 sounds alright... does it sound like its having trouble starting up? or if you listen to the radio for 30mins with the engine off and then try to start it back, does it start up right away or is it still slower to start than before?

the rest of your sounds about right, i +1 it.
PurpleStuff is offline  
Old 30-Nov-2011, 04:27 PM
  #4  
MPR
Senior Member
 
MPR's Avatar
 
Join Date: Sep 2007
Location: Where my car is.
Posts: 5,460
yeah, 12-13v is ok with engine off. Engine running, should be over 13v
MPR is offline  
Old 30-Nov-2011, 06:36 PM
  #5  
Senior Member
Thread Starter
 
Join Date: Jan 2004
Location: Tdot
Posts: 441
Hey guys, so the battery shows 12.78 volts when shut off, I haven't tested it loaded yet but went to crappy tire and they checked the battery in which the device said the battery was good...I haven't gone home yet but will look for a meter to test under load
l2iceman is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
iTaLiAn_vIrUs
Engine
10
23-Jun-2010 10:22 AM
ekhatch
Honda Civic Performance - JDM Discussion
12
04-Aug-2008 06:56 PM
90celica
Honda Civic Performance - JDM Discussion
20
16-Nov-2005 10:34 AM
imported_hdave
Interior - Audio - Security
36
04-May-2005 09:15 PM
1c9r8x8
Honda Civic Performance - JDM Discussion
5
11-Apr-2004 06:06 PM


Thread Tools
Search this Thread
Quick Reply: Question about changing alternator/battery


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.