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

85

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
    1,640
  • #2
    Tom Demyan
    Reputation
    1,550
  • #3
    tennisshoes
    Reputation
    1,240
View All

Related Models For Sale

Used Ford Mustang
742 Great Deals out of 42,157 listings starting at $1,300
Used Chevrolet Corvette
253 Great Deals out of 22,069 listings starting at $2,500
Used Chevrolet Camaro
408 Great Deals out of 31,584 listings starting at $2,395
Used Ford F-150
2,129 Great Deals out of 181,967 listings starting at $1,000
Used Mazda MX-5 Miata
71 Great Deals out of 4,237 listings starting at $2,000
Used Mercury Cougar
213 listings starting at $1,421
Used Mercedes-Benz SL-Class
56 Great Deals out of 2,707 listings starting at $3,950
Used Pontiac Firebird
9 Great Deals out of 810 listings starting at $1,900
Used Chevrolet Impala
589 Great Deals out of 34,530 listings starting at $1,250
Used Jeep Wrangler
280 Great Deals out of 15,911 listings starting at $2,997
Used Porsche 911
104 Great Deals out of 4,906 listings starting at $11,500

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.