Voltage readings

515

Asked by Aug 24, 2008 at 02:06 PM about the 1992 Mercury Cougar 2 Dr LS Coupe

Question type: Maintenance & Repair

Ok heres the deal, I have a 92 couger that is starting to be real tempermental.  the voltage reading in the car can go from 9-14.  it all just depends on the mood of the car.  i have checked the voltage regulator, the altinator, the starter regulator(fender mounted) and all the wires inbetween.  WHAT DO I DO NOW????????

1 Answer

205

Do you have a voltmeter? If you don't you should get one. You can find a cheap one at a Harbor Freight store and it will work just fine. With a voltmeter check your battery, while the car is turned off. The voltage from one terminal to the other should be around 12.6V. If it is less than 12.4V the battery is probably no good. Check to make sure the battery is clean, and that there is no corrosion on the battery or battery cables and ensure good connections. Can you describe what circumstances produce the different voltage readings? I.E. driving at night with the lights on, hot weather, cold weather, etc.

Your Answer

Mercury Cougar Experts

  • #1
    lisagayle
    Reputation
    2,200
  • #2
    Tom Demyan
    Reputation
    820
  • #3
    Jessica Cornelison
    Reputation
    610
View All

Related Models For Sale

Used Ford Thunderbird
23 Great Deals out of 1,056 listings starting at $7,500
Used Ford F-150
3,178 Great Deals out of 223,024 listings starting at $1,000
Used Ford Mustang
425 Great Deals out of 41,427 listings starting at $1,488
Used Chevrolet Camaro
495 Great Deals out of 30,908 listings starting at $995
Used Chevrolet Corvette
130 Great Deals out of 16,109 listings starting at $3,000
Used Mercury Grand Marquis
18 Great Deals out of 1,563 listings starting at $1,000
Used Pontiac Firebird
8 Great Deals out of 723 listings starting at $1,649
Used Mitsubishi Eclipse
16 Great Deals out of 1,125 listings starting at $1,999

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.