71 F100 Lights Issue
10

Asked by Jeff Feb 24, 2018 at 09:11 PM about the 1971 Ford F-100

Question type: Maintenance & Repair

I have a 71 F100 and the all lights are working except the rear running lights
and the now the Headlights Surge.   I had all working yesterday after buying
the truck and replacing the bulbs in the tail lights and now all I have on the rear
are Brake Lights and Turn Signal.  Then the headlights and cab lights starting
blinking or surging.   I would greatly appreciate any help on this matter.

3 Answers
505

Dan answered 6 years ago

Sounds to me like your having a grounding issue with lights

1 people found this helpful.
Mark helpful
10

GuruYQ5JY answered 6 years ago

I have the same issue with my truck. My brake lights work and back blinkers. Every time a fuse is put in the fuse box it blows the fuse. I'm thinking it's like Dan said. I took back lights out cleaned the connectors oiled the team springs and everything work for a day or two. So Im probably going to do a full wire inspection if I can't find the problem I'm going to just rewire the whole truck. I believe it's are only option. But that's just my opinion. Hope you figure it out

Mark helpful
10

Jeff answered 6 years ago

I replaced the voltage regulator and cleaned all the grounds. This took care of the issue I was having with losing the running lights in the rear and the other lights going on and off.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 71 F100 Lights Issue 3 Answers

    I have a 71 F100 and the all lights are working except the rear running lights and the now the Headlights Surge. I had all working yesterday after buying the truck and replacing the bulbs in the t...

    1971 Ford F-100

    -

    Maintenance & Repair

  • 71 Ford f100 3 Answers

    Have a 71 ford f100 with a 5.9 8 cyl. replaced the whole ignition system besides the distributor itself, rebuilt the carb, new fuel tank, new fuel pump. idles well, revs up fine in park and neutral...

    1971 Ford F-100

    -

    Maintenance & Repair

  • F100 1 Answer

    Restoring 54 F100 using 84 351 Windor need wiring help

    1954 Ford F-100

    -

    Maintenance & Repair

  • 1971 f100 2 Answers

    Recently my 71 F1 hundred was driving down the road and acted as if it ran out of gas. I had accidentally put about 8 gallons of gas regular unleaded with ethanol in it and thought that would b...

    1971 Ford F-100

    -

    Maintenance & Repair

  • 1971 F100 manual transmission 1 Answer

    I'm replacing the 3 speed manual trans in my 1971 F100. Before I install the replacement trans I'd like to put fresh fluid in. What is the best fluid to use for a manual 3 speed trans of that age?

    1971 Ford F-100

    -

    Maintenance & Repair

F-100

Looking for a Used F-100 in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Ford F-100 Questions

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    810
  • #2
    MrBlueOval
    Reputation
    510
  • #3
    Rowefast
    Reputation
    460
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet C/K 10
1 listing
Used Ford F-250
4 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. Content will be removed if CarGurus becomes aware that it violates our policies.