Have a 2005 Dodge Ram 1500 5.7 Hemi, alternator not holding a charge so it is draining the battery. replace alternator 2 times. was told that the regulator is inside the PCM. What can we do?

Asked by Sep 03, 2013 at 05:24 PM about the 2004 Dodge Ram 1500

Question type: Maintenance & Repair

1 Answer

269,515

The alternator doesn't hold a charge, the battery does. With the truck running, what is the voltage across the battery, should be 14v or more. If it is, the alternator is working fine. The voltage Regulator is in the alternator. Seems you have a electrical draw/parasitic drain on your battery. You will need to do some investigative work by pulling fuses, looking for loose, cut wires, corrosion and probing for continuity. I suspect you might be better off having someone who is good with Auto Electrics to diagnose it for you, it can be very time consuming and frustrating if you don't know what you are doing.

1 of 1 people found this helpful.

Your Answer

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,610
  • #2
    pudgybear
    Reputation
    6,470
  • #3
    dandyoun
    Reputation
    5,930
View All

Related Models For Sale

Used Ford F-150
3,237 Great Deals out of 224,156 listings starting at $1,300
Used Chevrolet Silverado 1500
2,930 Great Deals out of 162,627 listings starting at $1,500
Used Dodge Ram 2500
151 Great Deals out of 5,422 listings starting at $2,995
Used GMC Sierra 1500
1,253 Great Deals out of 62,824 listings starting at $1,500
Used Toyota Tundra
678 Great Deals out of 34,241 listings starting at $1,500
Used Toyota Tacoma
678 Great Deals out of 41,046 listings starting at $2,500
Used Ford F-250 Super Duty
465 Great Deals out of 46,740 listings starting at $595
Used Nissan Titan
313 Great Deals out of 19,026 listings starting at $3,298
Used Chevrolet Colorado
399 Great Deals out of 38,665 listings starting at $1,995
Used Dodge Dakota
81 Great Deals out of 3,514 listings starting at $1,499
Used Chevrolet Tahoe
856 Great Deals out of 39,741 listings starting at $1,990
Used Jeep Grand Cherokee
1,086 Great Deals out of 67,197 listings starting at $950

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
66 Great Deals out of 1,405 listings starting at $6,500
2009 Dodge Ram 1500 For Sale
51 Great Deals out of 1,102 listings starting at $4,690
2008 Dodge Ram 1500 For Sale
76 Great Deals out of 1,643 listings starting at $2,499
2007 Dodge Ram 1500 For Sale
61 Great Deals out of 1,432 listings starting at $1,988
2006 Dodge Ram 1500 For Sale
47 Great Deals out of 1,207 listings starting at $2,944

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.