SOURCE: s10 pickup after warming up truck starts missing
You might have computer problems.
Does the check engine light come on when it starts to miss?
SOURCE: hesitates & starts hard after it is warmed up 1992 5.7 gmc truck
You might try checking the timming if it is out depending on the milage you might need to replace the timing chain and guides good luck
SOURCE: chevy 1997 3500 vortec won''t crank in cold
CHECK BATTERY WITH A LOAD TESTER,CHECK CABLE CONNECTIONS,AN STARTER . TRY JUMPING WITH A BOOSTER PAK THAT SHOULD START IT IF NOT REPLACE STARTER.
SOURCE: 1999 chevy blazer wont start
THE FUEL PUMP IS BAD.
if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.
and i doubt that you are seeing enough fuel pressure to run a vortec engine.
low fuel pressure equals a non running vortec
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I cannot see it spraying fuel. The injectors/"spider" are enclosed under the upper intake.
We've added an entire can of Seafoam to 1/4 tank of gas. So far it's started and ran like a champ ever since. After reading about the "poppets" sticking being a failure prone issue, especially with high miles, and there being a TSB out on it. We decided to go with the cleaning before we upgraded the "spider" under the upper intake. So far so good.
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