1991 mercury cougar Ls voltage regulator wire is preventing charging, What to do?

Asked by Apr 18, 2017 at 09:44 PM about the 1991 Mercury Cougar LS Coupe RWD

Question type: Maintenance & Repair

The car will not charge unless the light green/red wire is in direct contact with
the battery. Once off, the alternator stops. If i leave the wire their the battery
dies after 2 hrs. So what can i do to fix it. (name tools or methods)

7 Answers

32,665

TRY AND ADD A DIODE IN THE WIRE..THAT ONLY ALLOWS POWER/VOLTS TO FLOW ONE WSY ...TO THE BATTERY

1 people found this helpful.

Do you think it could also be the charger indicator on the dashboard?

Yeah the wire gets power only at run position of the ignition.

My alternator is new mate. Its just the light green/red wire that attaches and everything is back to normal until you turn it off and drains the battery

Should i try taking out the dash and seeing if the charge indicator light is blown or burnt because i only have one light that shows up on the dash and its the check engine light. PS: the car has been sitting for 3 yrs

alright

back to the corroded connection. Where could a corroded connection be at alternator or what?

Your Answer:

Cougar

Looking for a Used Cougar in your area?

CarGurus has 141 nationwide Cougar listings and the tools to find you a great deal.

ZIP:

Mercury Cougar Experts

  • #1
    lisagayle
    Reputation
    2,250
  • #2
    Jessica Cornelison
    Reputation
    610
  • #3
    dandyoun
    Reputation
    310
View All

Related Models For Sale

Used Ford Mustang
387 Great Deals out of 39,640 listings starting at $1,995
Used Ford Thunderbird
20 Great Deals out of 1,068 listings starting at $3,900
Used Chevrolet Camaro
314 Great Deals out of 27,184 listings starting at $2,700
Used Chevrolet Corvette
110 Great Deals out of 14,561 listings starting at $3,900
Used Mercury Grand Marquis
20 Great Deals out of 1,296 listings starting at $1,250
Used Pontiac Firebird
3 Great Deals out of 685 listings starting at $2,995
Used Mitsubishi Eclipse
10 Great Deals out of 786 listings starting at $1,350
Used Ford Crown Victoria
756 listings starting at $1,796
Used Ford F-150
2,281 Great Deals out of 188,639 listings starting at $1,200

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.