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Chevrolet Repair/2007 silverado classic 2500

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Question
I have this whining noise , which I think is coming from around  the transmission , it appears to shifting normal and trans gauge appears normal range, however I did have the torque converter go in it last year which was still under warranty . It is a 07 Chevy Silverado with a 6 litre 4 speed trans

Answer
HI DALE, THE ONLY WAY YOU WILL KNOW FOR SURE IS TO REMOVE THE TORQUE CONVERTOR BOLTS TO THE FLYWHEEL. YOU CAN GET AT THEM TROUGH INSPECTION COVER UNDER THE FRONT SIDE OF THE TRANS JUST BEHIND THE ENG..REMOVE THIS COVER AND YOU WILL NEED TO TURN THE FLYWHEEL BY HAND USING A TOOL LIKE A SCREW DRIVER,UNLESS YOU HAVE A FLYWHEEL TOOL TO MOVE IT TO GET AT THE 3 OR 4 BOLTS THAT HOLD IT IN PLACE. JUST ROTATE IT UNTILL ALL THE BOLTS ARE REMOVED,NOW THE TORQUE WILL SPIN FREE OF THE ENGINE BY HAND..NOW START THE ENG UP LIKE THIS,IF THE NOISE IS GONE MORE THEN LIKELY THE FRONT TRANSMISSION PUMP IS MAKING THIS NOISE..IF THE NOISE IS STILL THERE THE ENG IS MAKING THIS NOISE..IF IN DOUBT REMOVE THE DRIVE BELT FIRST,START IT AND SEE IF THE NOISE IS GONE. MAYBE A PULLEY NOISE AND NOT IN THE TRANSMISSION..HOPE THIS HELPS YOU AND IF NOT GET BACK TO ME..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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