i have a 1986 98 regency broughm by olds.


Asked by Aug 27, 2013 at 11:50 AM about the 1986 Oldsmobile Ninety-Eight

Question type: Maintenance & Repair

this is an elec. question..i have a wire that has melted on this car and cant figure it out what it controls.. the car will crank and drive. but all the lights in the dash throw a hissy some times..need help plz..

6 Answers

probably the cigarette lighter...have seen plug into the cigarette lighter, toasters, coffee pots, irons....those truckers need their 12 volts~ this is probably the melty thing....think about it? what would be drawing Melt current?...one thing comes to mind...take a look at your fuseblock...use a little tester so you don't have to pull each and every fuse to look at it, there are little "tester" openings on the back of each fuse~ take a look at the relay block...perhaps your headlight relay is going bad (if equipped)~

1 of 1 people found this helpful.

You know your chassis will "come alive" if you took the big 1/0 black battery cable....find the end that attaches to ground, and coarse wirebrush the spot where the lug attaches...brush the lug...re-attach....this will insure 300 cold cranking amps can get through and still serve the dashboard, illumination, Fuel Pump....IGNITION~~! is an important one and will actually "weld" itself and CREATE the corrosion.....kinda shoots itself in the foot....and hey, I needed that foot~


ok thanks for the info... one more question...this wire is in the bundle behind the batt. inside this RED box..

RED=positive....we are only concerned with the black wire's connection to the frame here~....tho you could chase the connections with a small wirebrush, just don't catch fire...maybe pull of the cables to do this, but the NEGATIVE (ground to the brain) is Important...okie dokie~?

2 of 2 people found this helpful.

not really certain about the "red box" sounds like a cover for the main Positive Electrical...you could open the box to see some electrical connections to probably the alternator, the ignition, the fuel pump and anyone else who needs to be powered not necessarily with the help of the ECU~


Tried lookin up a wiring diagram for your car. It will not help. I need to know exactly what the burnt wire is. Where does it run from and what does it run to. May be a pick.

Your Answer


Looking for a Used Ninety-Eight in your area?

CarGurus has 45 nationwide Ninety-Eight listings and the tools to find you a great deal.


Oldsmobile Ninety-Eight Experts

  • #1
    Travis Willard
  • #1
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Buick Electra
17 listings
Used Cadillac DeVille
6 Great Deals out of 1,498 listings starting at $1,999
Used Buick Regal
158 Great Deals out of 7,514 listings starting at $3,995
Used Chevrolet Impala
579 Great Deals out of 34,490 listings starting at $900
Used Buick LeSabre
6 Great Deals out of 1,700 listings starting at $899
Used Pontiac Bonneville
482 listings starting at $2,995

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.