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Chevrolet Repair/chevy silverado z71 ext cab 4 wheel drive

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Question
i have been trying to help my sister find the problem with her brake lights!  When she applies her brakes the brake light on the back window comes on, but the ones on her tail gate does not! she has checked the fuses and bulbs. she works until 6 pm which then drives 45 minutes to get home and is about to have her 3rd child. I really need help on what to do ...I have read your history and i believe you are the one to trust! also i am thankful it is free. I have told many people about your website/ thanks
jennifer  

Answer
HI JEENIFER, THANKS FOR THE VOTE OF CONFIDENCE !!! THIS IS A VERY COMMON PROBLEM..DO YOU HAVE A TEST LIGHT ??? WE WANT TO CK FOR 12 VOLTS..TAKE ONE OF THE TAIL LIGHT LENS OFF THE BACK OF THE TRUCK,UNPLUG THE HARNESS AND CK FOR POWER ON THIS HARNESS..YOU WILL HAVE 3 TO 5 WIRES GOING TO THIS, TURN SIGNAL,REVERSE LIGHT, PARKING LIGHT, AND BRAKE LIGHT AND A GROUND..USE YOUR TEST LIGHT OR A 12 VOLT METER TO CK FOR POWER GOING TO THE PARKING LIGHT WHICH YOU KNOW WORKS AND HAVE TURNED THEM ON FOR THIS TEST, JUST TO CK FOR A GOOD GROUND ON YOUR TEST LIGHT OR METER. ONCE YOU KNOW THE TEST LIGHT HAS A GOOD GROUND BY THE PARKING LIGHT WIRE NOW YOU CAN TURN OFF THE PARKING LIGHTS AND HAVE SOMEONE PUSH DOWN ON THE BRAKE PEDAL AND CK FOR 12 VOLTS ON THIS WIRE. IF POWER IS TO THIS POINT THEN THE PRINTED CIRCUIT TO THE LIGHT HOUSING IS BAD..BUT CK FIRST..IF THERE IS NO POWER TO THE BRAKE LIGHT WIRE AT THE HARNESS YOU WILL NEED TO CK UNDER THE TRUCK DRIVERS SIDE AROUND THE FRAME AREA TOWARDS THE REAR AND YOU WILL SEE A PLUG CONNECTOR AT THIS POINT..UNPLUG THIS CONNECTOR AND YOU SHOULD FIND YOUR PROBLEM HERE AT THIS CONNECTION..THESE WILL CORRODE..CK FOR ANY GREEN CORRODED WIRES OR BROKEN WIRES. REPAIR AS NECESSARY. POSS NEW PLUG OR JUST BYPASS THE PLUG WITH BUTT CONNECTORS TO THE WIRE THAT IS BAD AND USE  [VERY IMPORTANT SHRINK TUBING]THIS WILL SEAL THE WIRE FROM WATER. CAN BUY THE BUTT CONNECTORS AND SHRINK TUBING AT ANY PART STORES..JUST SLIDE THE CORRECT SIZE OF TUBING OVER THE WIRE BEFORE YOU REPAIR IT..ONCE CONNECTED SLIDE THE SHRINK TUBING OVER THE REPAIR AND HEAT IT WITH A HEAT GUN IF YOU HAVE ONE OR USE A SMALL LIGHTER BEING CAREFULL NOT TO BURN THE SHRINK TUBE..ONCE IT IS WARMED YOU WILL SEE IT SHRINK AROUND THE WIRE FOR A TIGHT SEAL..I HOPE THIS HELPS YOU AND GOOD LUCK,,,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.

Publications
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

Past/Present Clients
MANY CUSTOMERS IN OUR BUSY SHOP.

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