My headlights and dash lights won't work after replacing alternator and battery...why?

Asked by Dec 14, 2014 at 12:01 AM about the 1987 Jeep Grand Wagoneer

Question type: Maintenance & Repair

I replaced my alternator...twice after the first turned out to be bad. I also replaced the battery. The voltage gauge hovers on the border of red, and the batter terminals only register 11.5V when running. The headlights and dash lights won't turn on. The dome light probably doesn't work either, but it doesn't work when I open the front doors anyway. Any thoughts?

3 Answers

37,665

If you are only registering 11.5 volts then you got an other bad alternator. Start there.

Did you figure it out. I am currently having the same problem.

25

Have you checked the fuses that are under the dash? they may have gotten a power surge at some point depending on what precautions were taken, if that fuse is blown make sure the lights did not go with it.

Your Answer

Grand Wagoneer

Looking for a Used Grand Wagoneer in your area?

CarGurus has 35 nationwide Grand Wagoneer listings and the tools to find you a great deal.

ZIP:

Jeep Grand Wagoneer Experts

  • #1
    Kurt Burton
    Reputation
    970
  • #2
    Tom Demyan
    Reputation
    130
  • #3
    tennisshoes
    Reputation
    60
View All

Related Models For Sale

Used Jeep Wagoneer
10 listings
Used Jeep Cherokee
288 Great Deals out of 67,163 listings starting at $2,795
Used Jeep Wrangler
250 Great Deals out of 19,077 listings starting at $2,500
Used Jeep Comanche
9 listings
Used Ford Bronco
199 listings
Used Toyota Land Cruiser
10 Great Deals out of 1,114 listings starting at $5,000
Used Jeep CJ7
47 listings
Used Jeep CJ8
10 listings

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.