Battery cables - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Oldsmobile When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Thread Tools Search this Thread
Old 06-17-2015, 09:15 AM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
Join Date: Mar 2007
Location: Austin Texas
Posts: 111
Thanks: 0
Thanked 1 Time in 1 Post
57lxi is on a distinguished road
Default Battery cables

Many moons ago I installed a Auto Meter Mini gauge trio. Temp, oil pressure, voltmeter. Rather spiffy install if I do say so myself. Anyway, I noticed sub par charging. In the 12'* at idle and maybe 13.5 at speed. Strange thing was, I would get 14v when it was cold. I suspected the alternator was crapping out. With a 2k road trip looming, I needed to fix it. So, Saturday I warm everything up and load the alternator down so I could take it to Advance and get a warranty replacement. (Needed to be not working to get a replacement.) AC, wipers, blower, headlights on showed a dismal 12.3 at idle, maybe 12.9-13 at high rpm, measured at the battery. Ok, alternator is crapping out. Just for kicks I measured at the alternator, 14.7-14.8 at idle. WTF? My battery cables were clean and tight but they were 20 years old! I quickly fabricated a 8g. wire and piggy backed it along the OEM cable off the alternator to the battery. Boom, 13.7-14 at idle with load. 14+ at higher RPM. Moral to the story, just cause the cables look good and are clean doesn't mean that they are any good. I will be replacing all three this weekend with new ones. Could be why my starter drags *** when it get hot.
57lxi is offline   Reply With Quote
The Following User Says Thank You to 57lxi For This Useful Post:
Soft Ride (06-17-2015)
Old 06-17-2015, 11:19 AM   #2
Senior Member
True Car Nut
Soft Ride's Avatar
Join Date: Jan 2012
Location: BC Canada
Posts: 3,581
Thanked 335 Times in 298 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of

I have experienced this before as well on older rides. It seems fresh copper often does improve flow.
I upgraded to a high output custom alt, ran fresh larger cables and a mega power AGM battery.

It is good piece of mind knowing your battery is charging properly, and supplying enough clean juice though the car!
Attached Thumbnails
Battery cables-buickgroundandaltwires_zpse7fd693a.jpg  
Soft Ride is offline   Reply With Quote
Old 06-18-2015, 03:05 AM   #3
Senior Member
Posts like a 4 Banger
Martinnhs12's Avatar
Join Date: May 2011
Location: Tucson, Arizona
Posts: 124
Thanked 2 Times in 2 Posts
Martinnhs12 is on a distinguished road

Nice cables Soft Ride! Yeah, likewise on getting new copper for better electron flow. Sometimes the stock stuff is just to get by 5, maybe 10 years if you live in a dry environment. Good catch 57lxi!
Martinnhs12 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Replacing the battery cables? where do they go? suctoes Everything Electrical & Electronic 3 12-05-2005 11:50 AM
Battery cables, '99 SLE. Dealer part only? Bob Dillon 1992-1999 11 10-29-2005 02:13 PM
Battery cables padgett 1987-1991 10 07-23-2005 10:57 AM
Battery Cables -THEY CORRODE! Bugsi Everything Electrical & Electronic 3 10-14-2004 03:52 PM
Battery Cables Sol 1992-1999 3 01-25-2003 09:08 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 01:23 PM.

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 and affiliated sites.