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That happened in my 1999 Buicke Century. Replaced the bulb 4 times kept burning out all within a week. Finally replaced the blinker socket and no more issues.
The brake light bulbs could be at fault....They are designed to work with the brake pedal and the night running lights....The bulbs work as a two way light....This means they have 2 small wires inside the bulb...Some bulbs only have one wire but they only serve one purpose...In cases like that the bulbs are at fault normally or you have a bad wiring issue ...,there is also a brake light switch connected to the brake pedal but if your brake lights work it should be ok..but don't rule it out...anything is possible with older vehicles...Only one wire inside the bulb can burn out and cause one light not to work but the other light will work because the bulb still has one of the wires connected inside...One 1157 bulb works 2 lights,,,the brake light and the running light....It is common for them to blow only half way leaving the other light working ....Look at the difference between a 1156 bulb and a 1157 bulb and you will see what I am trying to describe..An 1156 is for only a one way light because it only has one wire....look at the difference between the two.....If you have never replaced them change them anyway...Sometimes you can't tell when they are blown....Normally the bulbs cause the problem you are having....Thanks
HI Matt, Your issue sounds like a fault, most likely in the rear lights. Current is feeding from the brake light circuit, into the running light circuit. The most common causes are a bulb filament broken and touching the running light circuit, and loss of ground. observe the rear lights closely and you should get a clue as to which light is failing....but if not, just pick one.... I would run a temporary ground and test again, if no results, pull the brake light bulbs... Transient current is often difficult to wrap your mind around, until you understand what can happen. Doc
make sure the previously replaced bulb was the correct one and is installed correctly. it is a short between the tail light circuit and brake light circuit, this could even be a faulty bulb or bulb holder, the cruise will cut out if the brake light comes on, even if you dont touch the brakes
It may sound silly, but check your brake light bulbs to see if they have been installed incorrectly. Brake light bulbs have two filaments, one for tail light, and a brighter one for brake lights. On some cars if the bulb is installed wrong, the brighter filament will stay on for tail lights. The only other thing I can think of is the wrong bulbs have been installed.
There is a shortage some where at the brake bulb and low beam holder. Take off the bulbs and inspect carefully those losing wires attached to the ends can cause the problem. Good luck.
Probably either a bad ground (broken wire, rust) or a bad headlight switch. The brake light circuit goes from the stop switch (Located up above the brake pedal) through the headlight switch, through the light bulbs to ground. The tail light circuit goes through the headlight switch, through the bulbs and to ground. The only things that are in common are the headlight switch (Is this the switch you replaced?) and ground. Not much, but hope this helps. Have a super day! Ron
There should be at least 2 bulbs in the light assembly. One light is the light that is on when you turn on your headlights with out the brake pressed, the other light only lights up while you press on the brake. Make sure you are replacing the correct bulb. You may have been replacing the bulb that stays on. Your lights may be set up to turn off the light that stays on when the headlights are on while pressing the brakes.
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