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i have a 1999 chevy s10 starts and runs fine then after i drive about 1 hr and shut it off it wont start again for several hrs or till next day it cranks and it get fuel and spark security light is on but no checkegine light please help


garr, Does the security light

garr,

Does the security light go off? The security system could be a factor here, on the other hand it could be a number of other different things. Since it starts hours later and the next day, I'm thinking a failing "Check Valve" at the fuel pump. Using a "Fuel Pressure Gauge", post the "Static" fuel pressure when the truck (WON'T) start. Static pressure is fuel pressure with the "Key on and engine (NOT) running. Also when the truck (WON'T) start, crank the engine and let us know if spark is reaching the plugs.

do it get spark and fuel

do it get spark and fuel during its' "will not crank" period? be sure to check for these when the engine doesn't start.

okay will check, it always

okay will check, it always cranks though just won't start ...Thanks

is it a vortech engin?

is it a vortech engin?

no just a 4 cyl 2.

no just a 4 cyl 2.

well, that one is easyer to

well, that one is easyer to check fuel pressure.

garr, First is "Static Fuel

garr,

First is "Static Fuel Pressure" (KOEO). (MUST BE) 41-47 PSI. Are you reading that on your "Fuel Pressure Gauge"?

did you get a chance to check

did you get a chance to check for a spark yet?

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