Battery gauge jump to high side

Asked by Jun 14, 2017 at 09:26 PM about the 2002 Ford Mustang Coupe

Question type: Maintenance & Repair

Battery gauge is jumping to high side

5 Answers

28,095

CHECK ALL BATTERY CABLES..CHECK ALT FOR CHARGING SUCH AS A BAD DIODE

1 of 1 people found this helpful.

New battery and new alt

Battery and alt are brand new

55,465

Test the voltage at the battery with engine running. This voltage should be somewhere between 13.5 and 14.7 volts. If it is higher than that the alternator is overcharging and the cause needs to be found.

76,365

Which would be the voltage regulator in the alternator.

Your Answer

Mustang

Looking for a Used Mustang in your area?

CarGurus has 1,093 nationwide Mustang listings starting at $3,995.

Postal Code:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,720
  • #2
    Bob Beaman
    Reputation
    1,340
  • #3
    F_O_R
    Reputation
    1,310
View All

Related Models For Sale

Used Chevrolet Camaro
928 listings starting at $12,988
Used Chevrolet Corvette
539 listings starting at $7,900
Used Ford F-150
625 Great Deals out of 9,974 listings starting at $2,900
Used BMW 3 Series
180 Great Deals out of 2,031 listings starting at $995
Used Chevrolet Silverado 1500
197 Great Deals out of 10,124 listings starting at $1,779
Used Jeep Wrangler
111 Great Deals out of 2,032 listings starting at $5,888
Used Nissan 350Z
23 listings starting at $7,999
Used BMW M3
4 Great Deals out of 104 listings starting at $14,990
Used Honda Accord
81 Great Deals out of 1,151 listings starting at $2,000

Used Cars For Sale

2018 Ford Mustang For Sale
32 listings starting at $31,662
2017 Ford Mustang For Sale
346 listings starting at $22,994
2016 Ford Mustang For Sale
96 listings starting at $17,995
2015 Ford Mustang For Sale
111 listings starting at $20,000
2014 Ford Mustang For Sale
3 Great Deals out of 145 listings starting at $13,759

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.