1987 k5 Blazer wont start.
It ran fine, and have been driving it arund with no issues. I parked it and the next day it wouldn't start, cranks over fine, but I noticed I'm not getting any fuel out the injectors. Its a 350 TBI, can hear fuel pump (pump is only a year old and is an AC Delco pump), checked filter it isn't clogged, have fuel at the throttle body, any there is power going to the injectors. Anyone have any other ideas what it could be?
Last edited by moseph78; Jul 7, 2011 at 11:30 AM. Reason: put in wrong forum
*Moved to Full Size K5 Tech*
Have you tested the injector harness with a noid light? This light, when fitted into the injector harness will blink in relation to the command from the PCM to open/close the injector which is accomplished through pulsed grounds to the injector.
Also, you need to have ~10psi of fuel pressure at the throttle body. Have you tested the actual pressure?
Have you tested the injector harness with a noid light? This light, when fitted into the injector harness will blink in relation to the command from the PCM to open/close the injector which is accomplished through pulsed grounds to the injector.
Also, you need to have ~10psi of fuel pressure at the throttle body. Have you tested the actual pressure?
Thanks for all your help but I got it figured out. Took me a long time to find the specs I was looking for. It was a bad ignition module and pickup coil. A signal goes from the ignition module to tell the ECM when to pulse the injectors which is why I had no fuel.
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