if i disconnect battery at night -should i disconnect pos or neg post? or does it matter?

Asked by Apr 21, 2016 at 07:56 AM about the 2000 Ford Mustang Coupe

Question type: Maintenance & Repair

car does not start after sitting 1-2 days without a jump---battery good posts
good  -- maybe starter ou alternator?

1 Answer

113,605

Negative cable is right. But everytime you do,this it resets the computer back to factory, so your loosing fuel mileage and performance until the computer relearns the system all over again. Something you can do fairly easy is but a test light between the battery post and the terminal end on the cable if the light turns on bright then you have a draw big enough to kill a battery quickly, now just electrical disconnect the alternator, if the light goes out or drops to just a faint glow you have found you culprit, replace the alternator. HTH

Your Answer

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,970
  • #2
    F_O_R
    Reputation
    1,490
  • #3
    Bob Beaman
    Reputation
    1,420
View All

Related Models For Sale

Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used Chevrolet Corvette
101 Great Deals out of 15,517 listings starting at $3,900
Used Ford Mustang SVT Cobra
3 Great Deals out of 215 listings starting at $4,900
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used BMW 3 Series
833 Great Deals out of 32,432 listings starting at $995
Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,285 listings starting at $1,495
Used Jeep Wrangler
250 Great Deals out of 19,077 listings starting at $2,500
Used BMW M3
12 Great Deals out of 1,668 listings starting at $6,995
Used Honda Civic
333 Great Deals out of 52,978 listings starting at $1,200

Used Cars For Sale

2018 Ford Mustang For Sale
14,854 listings starting at $19,489
2017 Ford Mustang For Sale
81 Great Deals out of 7,158 listings starting at $16,699
2016 Ford Mustang For Sale
35 Great Deals out of 2,292 listings starting at $12,391
2015 Ford Mustang For Sale
16 Great Deals out of 2,147 listings starting at $11,995
2014 Ford Mustang For Sale
22 Great Deals out of 1,831 listings starting at $9,588

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.