Fuel problem or possibly a sensor

1999 CHEVROLET BLAZER
180,000 MILES • 4.3L • V6 • 4WD • AUTOMATIC
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LEROY CARL VANHOFF
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Okay, bought the vehicle the guy said it had small issue with starting. well after it turned over he pumped gas and it started. so I drove it home it ran great no noises or hesitations. Parked it for couple months because it wouldn't start after it was shutoff. So I replaced pump the wiring was all messed up to that got that fixed got new tank leak in old one the new tank was missing nipple to vent on front of tank so I blocked it and the hose now I have fuel going to rail up front I have spark but no fire just cranks I'm thinking sensor? But not sure if it's much worse or not. If it ran before just fine I wouldn't think it would be anything serious. Would the vent prevent it from starting? Please help I'm going insane trying to figure this out.
Jun 17, 2019 at 12:48 AM
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ASEMASTER6371
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Good morning,

What is the actual fuel pressure? That is critical.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

If you spray starter fluid in the air filter, does it start and stall?

Roy
Jun 17, 2019 at 2:56 AM
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LEROY CARL VANHOFF
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Yes it does and I'm not sure of pressure yet, but there's a lot coming from shrader valve tester I'm going to but pressure gauge soon.
Jun 17, 2019 at 7:04 AM
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ASEMASTER6371
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Sounds good.

Keep me updated.

Roy
Jun 17, 2019 at 8:40 AM