New alternate and battery still killing battery not holding charge

Asked by Jun 03, 2017 at 04:08 PM about the 1993 Ford Thunderbird LX

Question type: Maintenance & Repair

2 Answers

1993 ford thunderbird 5.0 ho has msd new battery and alternate still drain the battery then tale t cable it killed the car

175

Get a clamp meter that is capable of measuring 25 DC amps. With all accessories turned off, and doors and trunk closed, place the clamp meter caliper around the RED battery cable. If the meter measures over 400 milliamps (.4 amps), then there is a "parasitic" load which is draining the battery. Let's say you measure 3.5 amps on the meter. Start pulling fuses until the meter reads .4 amps (or less). You just isolated the short circuit! Look at the fuse panel legend to see whats causing the unwanted load (drain).

Your Answer

Ford Thunderbird Experts

  • #1
    Larry Sturgis
    Reputation
    1,650
  • #2
    Tom Demyan
    Reputation
    1,580
  • #3
    tennisshoes
    Reputation
    1,270
View All

Related Models For Sale

Used Ford Mustang
611 Great Deals out of 36,332 listings starting at $899
Used Chevrolet Corvette
188 Great Deals out of 19,862 listings starting at $2,490
Used Chevrolet Camaro
443 Great Deals out of 30,816 listings starting at $2,495
Used Ford F-150
2,576 Great Deals out of 197,078 listings starting at $1,300
Used Jeep Wrangler
352 Great Deals out of 17,375 listings starting at $2,995
Used Mercedes-Benz SL-Class
70 Great Deals out of 3,026 listings starting at $4,500
Used Mazda MX-5 Miata
73 Great Deals out of 4,414 listings starting at $2,750
Used Mercury Cougar
182 listings
Used Pontiac Firebird
5 Great Deals out of 775 listings starting at $2,500
Used Ford Taurus
188 Great Deals out of 15,897 listings starting at $1,850

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.