SPONSORED LINKS

Alternator Issues

Tiny
SWARTZSGT
  • MEMBER
  • DODGE RAM
Hi gang, just a quick question, I have an 03' Dodge Ram 1500 (2 wheel drive)with the 5.7 liter Hemi engine and the amperage drops when I go over 2500 RPM and it will go back up when I let off the gas and get back to a lower RPM (2000 or so). It doesn't do it while hitting the gas in park in neutral. I took it to a local auto store and they tested the alternator and battery and said it was "good" Any help would be appreciated, thanks!
SPONSORED LINKS
Saturday, September 22nd, 2007 AT 9:08 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I took it to a local auto store and they tested the alternator and battery and said it was "good". Did they use the VAT machine or just the old fast way the voltmeter.

Have them full field the alternator meaning bypassing the regulator to let it throw everything its got. If it continues the alternator has internal defects if it stops the regulator has a problem.

Could also be the computer not controlling the regulator depends on the charging system design.

Double check all the connections at the battery and alternator.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, September 23rd, 2007 AT 4:53 AM

Please login or register to post a reply.

Related Alternator Test Content

How to Test an Alternator
VIDEO
How to Test an Alternator
Instructional repair video
Alternator Test
GUIDE
Alternator Test
The alternator in your car is designed to generate voltage at prescribed amperage which is designated by a voltage regulator or vehicle computer. This electrical energy...
VIEW MORE

Sponsored links