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Chevrolet Repair/1989 Chevy Silverado k3500

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Question
My 1989 Chevy Silverado k3500 won't shift into 4 wheel drive. It has an automatic transmission and when I try to put the truck into 4 high the indicator light doesn't come on at all, when I try to put it into 4 low it won't shift at all. What could be the problem and how do I fix it?

Answer
HI JOHN,,WE I AM NOT AT WORK SO I HAVE NO INFO AT MY DISPOSAL..BUT ARE YOU SAYING THAT WHEN YOU PUT THE TRANSFERCASE IN FOUR LOW THE TRNAMSISSION WILL NOT GO INTO GEAR AT ALL..IF THIS IS THE CASE IT SOUNDS LIKE YOU ARE IN NUETRAL ON THE TRANSFERCASE LIKE IT IS IN THE PTO MODE AND YOU THINK IT IS IN LOW..TRY PUTTING THE TRANS IN NEUTRAL AND THEN TRY TO PUT THIS IN LOW RANGE.THE ONLY WAY THE TRANSMISSION WOULD BE AFFECTED BY THIS IS IF THE TRANSFER CASE IS IN NEUTRAL.IF THIS IS THE CASE IT SOUNDS LIKE THERE IS A PROBLEM OIN THE FRONT AXLES NOT ENGAGING...ALSO GET BACK TO ME IF THIS IS A SHIFT LEVER ON THE FLOOR OR ELECTRICAL SWITCH TO ENGAGE THE 4WD..CHEVY CHANGED FROM LEVER TO ELECTRIC AROUND 88 TO 90 I FORGOT ..SORRY..GET BACK TO ME IF YOU CAN.....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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