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Chevrolet Repair/91 chevy dies and has poor acceleration

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Question
I have a 91 Chevy with a 4.3 V6. My truck dies after 10 to 20 seconds after I start it. When driving has over poor acceleration and still wants to die when I dealing. Any answers to this?

Answer
HI JORY, THIS COULD BE ALOT OF THINGS BUT THE FIRST THING I WOULD DO IS CHECK THE FUEL PRESSURE.
DO YOU HAVE A PRESSURE GAUGE ??? IF SO WHEN IT DIES SEE IF THERE IS FUEL PRESSURE. WOULD LIKE TO SEE ABOUT 40 LBS  OR SO...IF YOU DO NOT HAVE A GAUGE FIND THE CK PORT ON THE FUEL RAIL AND REMOVE THE CAP,WILL LOOK LIKE A TIRE VALVE STEM CAP,REMOVE THE CAP AND WHILE SOMEONE IS CRANKING THE ENG OVER YOU PUSH DOWN ON THE SHRADER VALVE THE ENTIRE TIME THE ENG IS CRANKING OVER YOU SHOULD HAVE FUEL COMING OUT OF THE CK PORT WITH THE VALVE PUSHED DOWN..IF NOT THE FUEL PUMP IS MORE THEN LIKELY BAD, OR NO POWER TO THE PUMP.[WE WILL GET TO THAT LATER].IF SO IT IS NOT A FUEL PROBLEM. WHEN YOU CK THIS MAKE SURE THE ENG IS CRANKING OVER FOR 25 TO 30 SECONDS AND A GOOD FLOW OF FUEL IS COMING OUT OF THE CK VALVE. NOT JUST FOR THE FIRST 2 TO 3 SECONDS. THIS IS CALLED RESIDUAL PRESSURE, THIS WILL FOOL YOU ALL THE TIME..GET BACK TO ME AFTER YOU HAVE CHECKED THIS AND WE WILL GO ON FROM THERE..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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