2007 Sprinter Voltage Overcharging

Asked by BarefootBrad May 22, 2018 at 09:30 PM about the 2007 Dodge Sprinter Cargo 2500 144 WB RWD

Question type: Maintenance & Repair

I have a 2007 Sprinter Diesel and have replaced the Alternator 4x's and JUST put another one in 3 days ago.  I finally put a voltage tester on the  battery terminal and when I am at idle the voltage goes from 14.1v to 19-20v and the battery light comes on, along with the seat belt alarm.  When I begin driving again, the volts go back to 14v.

Any ideas?

Thanks ahead of time.

5 Answers

BarefootBrad answered 6 years ago

It is not a Bosch. Rebuilt from O'Reilly. The alternator is working, it is just when I stop at a light or idle the volts go up to 20v.

Mark helpful
34,830

charles answered 6 years ago

Correct,the aftermarket alternators are back feeding,very common, you need to install a OEM alternator.

Mark helpful

BarefootBrad answered 6 years ago

Is it coming back through the starter? I am only getting 7v from the pin on the top of the alternator (the wire from the starter).

Mark helpful

Your Answer:

Related Questions

  • 2007 Sprinter Voltage Overcharging 5 Answers

    I have a 2007 Sprinter Diesel and have replaced the Alternator 4x's and JUST put another one in 3 days ago. I finally put a voltage tester on the battery terminal and when I am at idle the voltage g...

    2007 Dodge Sprinter Cargo 2500 144 WB RWD

    -

    Maintenance & Repair

  • I have a 2007 Sprinter Van that has 167,000 miles... Noise in front end! 3 Answers

    I have a 2007 Sprinter Van that has 167,000 miles on it. It has developed a thud, knock, or whatever were calling and abnormal noise these days, on the drivers side front. I had my local tech check ...

    2007 Dodge Sprinter Cargo 3500 170 WB RWD

    -

    Maintenance & Repair

  • 2008 Sprinter no start 2 Answers

    On my 2008 Sprinter it will only start with starting fluid. After it starts it idles great. Any suggestions on the problem. Thank you

    2008 Dodge Sprinter Cargo 3500 170 WB RWD

    -

    Maintenance & Repair

  • other than Olathe Dodge, who in the Kansas City area can repair a dodge sprinter cargo van????? 3 Answers

    I've had it with Olathe Dodge Dealership! They can't fix a light bulb in my Sprinter! Does anyone know of a repair shop in the Kansas City MO area that repairs these vans?

    2005 Dodge Sprinter Cargo

    -

    Maintenance & Repair

  • How to fix white smoke in my 3500 Sprinter? 1 Answer

    I checked the injectors an all 5 are working good.

    2005 Dodge Sprinter Cargo 3500 140 WB RWD

    -

    Maintenance & Repair

Looking for a Used Sprinter Cargo in your area?

CarGurus has 6 nationwide Sprinter Cargo listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Dodge Sprinter Cargo Questions

CarGurus Experts

  • #1
    SprinterTom
    Reputation
    50
  • #2
    T_S_T
    Reputation
    40
  • #2
    Auto_Centric
    Reputation
    40
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Transit Cargo
49 Great Deals out of 1,279 listings starting at $9,499
Used Mercedes-Benz Sprinter
14 Great Deals out of 949 listings starting at $14,999
Used Chevrolet Express Cargo
13 Great Deals out of 394 listings starting at $989
Used Dodge RAM 1500
5 Great Deals out of 68 listings starting at $3,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.