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Chevrolet Repair/1991 k1500 5.7l Clutch problems

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Question
how do you tell if it is master cyl or slave cyl. that goes bad.about a week ago it was hard like normal to push clutch pedal in even harder for it to engage the starter.while starting to take off on day it had/made a pop feel/sound and became easier to push in but then the pedal started to shutter when 3/4 engaged not its smooth but only getting engagement at the bottom of the stroke.ive seen recent fluid in both locations but never have had to add fluid to it either...its cheap enough to replace either but not wanting to buy one install it and find i needed the other..any help would be greatly appreciated

Answer
HI JEFF,I DO NOT FEEL THE PROBLEM IS IN THE MASTER CYLINDER OR SLAVE. THIS SOUNDS TO ME LIKE THE PRESSURE PLATE IS BAD OR THE THROW OUT BEARING IS BINDING ON THE TRANSMISSION INPUT SHAFT...I WOULD SUGGEST REMOVING THE SLAVE CYLINDER FROM THE TRANS HOUSING AND PUSH VERY SLOWLY ON THE CLUTCH PEDAL WHILE SOMEONE WATCHES THE MOVEMENT OF THE SLAVE CYLINDER. IF THIS MOVES OK LIKE THIS THE CLUTCH IS THE PROBLEM..DO NOT PUSH DOWN REAL HARD OR FAST ON THE CLUTCH PEDAL WHEN THE LAVE CYLINDER IS REMOVED.YOU WILL ALSO NEED TO PUSH THE SLAVE CYLINDER BACK INTO ITS BORE AFTER DOING THIS..DO NOT LET IT BLOW OUT...OR YOU WILL NEED ONE FOR SURE THEN..IF THE PROBLEM IS IN THE CLUTCH I WOULD REPLACE THE SLAVE CYLINDER ANYWAY.. GOOD LUCK TO YOU,,, AND I HOPE THIS HELPS YOU...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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