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Chevrolet Repair/1990 chevy silverado pick up

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Question
I have a wiring issue. center bulb on both taillight assys burns bright and hot with or without the parking or headlamp lights on. they burn out and smoke within minutes of install. upper and lower bulbs work fine. where in harness is the best place to  begin troubleshoot? I just bought the truck. battery was dead and looks like alternator has been replaced. under hood wiring looks good. Battery has been replaced. has sat for a week without being started or driven and battery is still good. so I believe there is no draw on circuit. Brake pedal switch? sensor in master cylinder reservoir? everything else works correctly except the wipers which will run in the wash setting and stop in the middle of the window without parking.
thanks

Answer
GOOD MORNG CHRIS,THIS IS VERY STRANGE,BECAUSE A LIGHT BULB IS MENT TO HAVE BATTERY VOLTAGE TO LIGHT. THE ONLY WAY THIS BULB COULD BURN OUT LIKE THIS IS DEFECTIVE BULB OR WRONG VOLTAGE BULB.
WHAT DOES THIS BULB RUN PARKING LIGHTS ONLY OR BRAKE OR BOTH ??? DOES THE BRAKE LIGHT WORK WHEN BRAKE PEDAL IS DEPRESSED ?? THE FACT THAT THE BULBS BURN BRIGHT LIKE THIS TELLS ME THAT THE WRONG BULB IS IN THE PLACE OF THIS SOCKET,SUCH AS MAYBE THIS BULB SHOULD ONLY BE FOR PARKING LIGHTS ONLY AND YOU GOT A 2 FILIMENT BULB IN THE SOCKET..HOW MANY CONTACTS ARE IN THE SOCKET,IF THERE ARE 2 THEN THERE SHOULD BE A 2 FILIMENT BULB,IF ONLY ONE THERE SHOULD BE A 1 FILIMENT BULB..[[[BUT]]] THE BULB SHOULD NOT BLOW OUT NO WAY..THE ONLY WAY THIS BULB COULD BLOW OUT LIKE THIS IS AS I SAID ABOVE OR THE BATTERY IS PUTTING OUT 18 OR MORE VOLTS,,HOW COULD THAT BE ??? IF OTHER BULBS WERE GOING BAD I WOULD SAY THE ALTERNATOR IS OVERCHARGING..AS FAR AS THE WIPER PROBLEM THIS SOUNDS LIKE A BAD SWITCH... GET BACK TO ME ON THIS BULB PROBLEM OR IF YOU HAVE MORE INFO...THIS IS GOO,,,,.TOM..

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TOM SHEETS

Expertise

PLEASE READ ALL OF THIS BEFORE ASKING ANY QUESTIONS. IF THIS CHEVY SECTION IS MAXED OUT.YOU CAN REACH ME IN THE OLDS/BUICK SECTION. Will answer questions from 6:00am to 10:00pm all days [EST][[[ NO DIESEL OR PAINT QUESTIONS]]] will answer all 1965 to present QUESTIONS ON ALL GM'S on mechanics of these cars. Keep in mind i am not there in person i am going on what you are telling me !! PLEASE IF ASKING A QUESTION GIVE ME AS MUCH INFO AS POSSIBLE. THE MORE THE BETTER. SUCH AS YEAR,MAKE,MODEL,ENGINE SIZE. THIS WILL HELP ME HELP YOU. I will not be able to answer all questions because of some situations that i would really need to be there and see things for myself,such as electrical issues. In many cases i would need wiring diagrams. I can also give you an estimate on what the cost would be at our repair shop as an idea to help you. Keep in mind that my answer is ONLY MY ADVICE,ck with your mechanic as well.. >> THANK YOU, TOM..

Experience

I have been a ASE certified master mechanic for over 30 years and certified IN ALL 8 CATEGORIES,[engine repair,engine performance,auto trans,manual trans,clutches,steering and suspension,brakes,electrical systems,heating and air/cond. I am also a state CERTIFIED inspector for over 30 years. I do computer work [pcm]fault codes,pcm flashing,state inspection monitor readiness,repairs on exhaust,fuel service,[injection and carburetor,] charging system problems, running issues,alignments,frame problems,tire balance,struts and of course standard and anti-lock brakes.

Organizations
nys state auto repair industry and ase group.

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N/A

Education/Credentials
high school,4 years of tech school,and many many hours of auto training with many gm classes and aftermarket training classes..

Awards and Honors
ASE MASTER TECH CERTIFIED IN ALL 8 CATEGORIES.NYS INSP LICENSE AND A/C CERTIFIED

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MANY CUSTOMERS IN OUR BUSY SHOP.

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