2002 Chevy S-10 Wion't start

WINDOWACE

MEMBER
2002 CHEVROLET S-10
4 CYL
2WD
MANUAL
70,000 MILES

Car was fine. Sat for several weeks maybe a couple of months. Would crank but not start. It would just catch for a second or two and then die. Finally got it started. Let it run for 15 minutes or so. Shut it off. Tried to start it again but it would not. Would only turn over. I noticed the engine was most likely to catch for a second or two if the key was turned all the way off before cranking again. Towed it to a garage, they said the fuel pressure was 30 something and it needed a new fuel pump and filter. I changed both, the condition still exists. Engine turns over, will catch "maybe", for a second or two but will not run. My gut says it catches for a second because of some kind of priming that goes on when the key is turned on, but something other than the fuel pump and filter is limiting or stopping the fuel from flowing. Any ideas? Thanks.

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Do below to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.