Charging problem

Asked by Mar 27, 2018 at 11:34 AM about the 1981 Ford F-100

Question type: Maintenance & Repair

I bought this truck and it died on me on the way
home but not when I test drove it. I have changed
the battery, the alternator, the voltage regulator, a
couple plugs and wires that deal with the alternator
and voltage regulator. Now it charges but only
when the truck is accelerating. When truck is at
idle it doesn't charge. All parts changed are brand
new and tested good. Would anyone happen to
know what direction I should go in to find my
problem?

2 Answers

39,715

Check the fusible link between alternator and starter solenoid. If it's bad alternator can't charge. Also check ground from voltage regulator, it grounds to the sheet metal body (usually fender) which grounds to the cab, the cab grounds to the engine block with a braided (usually) ground strap. If grounds are bad, alternator/voltage regulator can't properly charge battery.

Well thank you for ur thought but neither of those were the problem....just gonna keep searching around until I find the problem

Your Answer:

Ford F-100 Experts

  • #1
    tennisshoes
    Reputation
    550
  • #2
    MrBlueOval
    Reputation
    330
  • #3
    Rowefast
    Reputation
    300
View All

Related Models For Sale

Used Ford F-150
2,546 Great Deals out of 185,638 listings starting at $549
Used Ford F-250
380 listings starting at $5,995
Used Ford Mustang
476 Great Deals out of 38,167 listings starting at $1,100
Used Chevrolet C/K 10
311 listings
Used Ford Bronco
211 listings
Used Chevrolet Camaro
484 Great Deals out of 26,877 listings starting at $1,400
Used Chevrolet Corvette
226 Great Deals out of 14,590 listings starting at $3,000

Used Cars for Sale

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.