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Chevrolet Repair/its frank with the 1997 cevy 3500 7.4 l dually

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Question
hi tom its me again so i check fuel pressure its good i think it was 50-60. i can get it running once in a while it will stay on.Also this when I hold down the gas pedal it will not even try to start. when i turn the key with out pressing the gas pedal it fires up but dies wont stay running.I have replaced the fuel filter and the fuel pump.When i spray ether in the air filter it stays running till thers no more ether in the air filter box. if you need more info please let me know thank

Answer
HI FRANK, OK SO WE KNOW THE FUEL PRESSURE IS GOOD. WE CAN RULE OUT A FUEL PROBLEM. THE FUEL PRESSURE IS NOT JUST RESIDUAL CORRECT ??? WHAT I WOULD LIKE YOU TO DO NEXT IS REMOVE THE HARNESS GOING TO THE MASS AIR FLOW SENSOR..START IT UP LIKE THIS,IF IT STAYS RUNNING LIKE THIS  MORE THEN LIKELY THE MASS AIR FLOW IS BAD. IT WILL NOT RUN REAL GOOD, BUT BETTER THEN IT HAS. ALSO CK THE WIRING HARNHESS GOING TO THE MASS AIR FLOW SENSOR AND MAKE SURE THERE ARE NO BROKEN WIRES. ALSO HAVE YOU CHECKED FOR ANY CODES IN THE SYSTEM SINCE THIS HAS BEEN HAPPENING ??? IF NOT YOU MAY WANT TO DO SO..SO CK THE MASS AIR FLOW SENSOR FIRST AND THEN IF THAT DOES NOT WORK CK FOR CODES IN THE SYSTEM AND GET BACK TO ME. GOOD LUCK TO YOU,,,TOM..
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HI FRANK AGAIN,,I HAVE TO SAY IAM SORRY BUT I DID NOT READ YOUR PAST QUESTIONS AND MY PAST ANSWERS TO YOUR QUESTION. IF YOU READ THIS ANSWER IT IS ALMOST THE SAME AS THE LAST ANSWER I GAVE TO YOU..DID YOU REMOVE THE MASS AIR FLOW SENSOR HARNESS ??? IF SO WHAT HAPPENED ??? I GET ALOT OF QUESTIONS AND I CANT REMEMBER WHAT I SAID TO DO FROM EACH QUESTION..BUT I DO FEEL THIS ENG HAS A MASS AIR FLOW PROBLEM,FROM THE CODES YOU GAVE TO ME...CK THIS OUT AND LET ME KNOW.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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