Why are tail lights staying on constantly?

5

Asked by May 09, 2013 at 09:47 AM about the 1965 Ford Thunderbird

Question type: Maintenance & Repair

1965 Thunderbird (standard model)...
The TAIL LIGHTS are on constantly even when all light switches are in the "off" position.
Probable cause or repair suggestions?????

6 Answers

5,005

the 65 has the sequential taillights and if you have the original module it may be shorted out. The unit is in the trunk by the back seat. Check it first. If it is bad, you may be able to find an original but there are third party solid state units today that eliminate this problem.

25

"Short to power" somewhere in the tail-light circuit, Start at the tail-lights in the rear and if you can trace the wires back to the fuse or relay looking for burnt or open spots along the wire.

5,005

Sorry, if they were shorted, they would not work at all and blow a fuse. It is more than likely in the flasher assy.

25

If it was in the flasher assy then wouldn't the tail-lights flash with the turn signals? And i mean short the power not short to ground, like feedback from another power source along the wire somewhere. But you could just as well be right so i would check that too.

5,005

I don't know if you have ever seen an original 65 Bird flasher unit but it is NOT solid state and is actually a good piece of electronic engineering. It is possible that the flasher circuit could have an open circuit and not flash but just keep the lights on.

if the brake lights are on and only the brake lights not running lights check the brake pedal the switch underneath it is staying on you have to adjust it back it off a little until it goes off and comes on when the brake pedal is applyed.and off when it is let off.

Your Answer

Add photo

Related Questions

Thunderbird

Looking for a Used Thunderbird in your area?

CarGurus has 1,048 nationwide Thunderbird listings starting at $6,499.

ZIP:

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 Larry Sturgis
Larry Sturgis
Reputation 1,540
#2 Tom Demyan
Tom Demyan
Reputation 1,490
#3 tennisshoes
tennisshoes
Reputation 1,210
View All

Related Models For Sale

Used Ford Mustang
388 Great Deals out of 47,511 listings starting at $1,800
Used Chevrolet Corvette
99 Great Deals out of 20,456 listings starting at $3,495
Used Mercedes-Benz SL-Class
33 Great Deals out of 2,951 listings starting at $2,900
Used Chevrolet Impala
523 Great Deals out of 29,877 listings starting at $799
Used Lincoln Continental
4,151 listings starting at $41,448
Used Dodge Charger
282 Great Deals out of 27,348 listings starting at $2,250

Used Cars For Sale

2005 Ford Thunderbird For Sale
71 listings starting at $9,495
2004 Ford Thunderbird For Sale
143 listings starting at $8,500
2003 Ford Thunderbird For Sale
4 Great Deals out of 157 listings starting at $8,500
2002 Ford Thunderbird For Sale
6 Great Deals out of 317 listings starting at $6,499