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Chevrolet Repair/1997 Chevy Astro 4.3

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Question
When I turn the key, it tries to start but won't fire. I usually can get it started with a spray of starting fluid. Once I get the engine running, it continues to run just fine. As long as I start it up again within 8-9 hours, it starts with no problems. But if I wait much longer than that, I have to use the starting fluid spray to get it going again. I was told it could be the fuel pressure regulator. Is that correct?

Answer
HI LINNEA,YES IT COULD BE THE FUEL PUMP REGULATOR, BUT USUALLY IF YOU KEEP CRANKING THE ENGINE LONG ENOUGH IT SHOULD STILL START AFTER CRANKING AWHILE..RESON BEING IS IF THE REGULATOR IS BAD IT WILL BLEED OFF THE PRESSURE IN THE MAIN SUPPLY LINE TO THE INJECTORS..BUT ONCE BUILD BACK UP AGAIN AS I SAID IT SHOULD START..THE OTHER PROBLEM IS POSSIBLE BAD FUEL PUMP STARTING TO ACT UP..YOU REALLY NEED A FUEL PRESSURE GAUGE TO CK THIS..WOULD LIKE TO SEE ABOUT 40 TO 45 LBS WHEN CRANKING..IF REAL LOW TIME FOR A NEW PUMP..ONLY REPLACE WITH A GM PUMP..HAVE HAD MANY PROBLEMS WITH AFTERMARKET PUMPS.SO TRY TO CRANK THIS FOR A WHILE AND SEE IF IT WILL START,IF SO REGULATOR IS BAD,FOR THE HECK OF IT, REPALCE THE FUEL PUMP RELAY WITH ANOTHER RELAY IN THE MAIN FUSE BOX WITH THE SAME KIND OF RELAY..SOMETIMES THESE RELAY'S WILL DO THIS AS WELL.. IF NOT MAYBE TIME FOR A PUMP. NEED MORE INFO GET BACK TO ME...GOOD LUCK TO 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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