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Chevrolet chevy express 3500: I was reading about 99 chevy

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I was reading about 99...
I was reading about 99 chevy express 3500 getting fuel but not starting I am having the exact same issue with my 99 also everything is to the tee but the conversation stopped ....did u ever figure out what it was?
Submitted: 2 years ago.Category: Chevy
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Customer reply replied 2 years ago
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 2 years ago
That's all ivegot
Answered in 23 minutes by:
7/24/2015
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
Jerry Newton
Jerry Newton, Chevy Technician
Category: Chevy
Satisfied Customers: 4,832
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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Do you have a scan tool that can read live data?
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Customer reply replied 2 years ago
No
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
OK. We can work around that, probably. How do you know it's getting fuel?
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Customer reply replied 2 years ago
It comes out fuel rail
Customer reply replied 2 years ago
Plus I can smell it flooding
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
OK. This engine needs 55psi to start, the fact that there is fuel present at the fuel rail doesn't mean it has enough pressure. If you smell fuel, however, perhaps we can assume that you have fuel delivery. How about spark, have you tested for spark yet?
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Customer reply replied 2 years ago
When I shut it off after cranking ...it kinda tries to too start ...turns over then stops and yes I have spark
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
Where are you testing for spark, at the coil wire or at the spark plug?
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Customer reply replied 2 years ago
End of plug wires
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
OK. If it tries to start after you release the key, typically this means there is some weakness in the ignition system. I don't know how the spark looks where you're testing it, but it should be fat and blue, not weak and orange. Distributor caps and rotors are particularly troublesome on these, you get a crack in either of those items and you can lose the spark intensity. Again, you'll just have to gauge this for yourself, replace if you feel it's necessary. If you think it's flooded, have you tried holding the gas pedal to the floor and cranking it?
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Customer reply replied 2 years ago
It's got strong heft blue spark and yes I've tried pushing to floor but what's crazy is I may go out 2 days from now and it will start right up then run for a week everyday then just like that it starts doing this again
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
OK. You're going to have to check the fuel pressure with a gauge, because the pressure is critical. We just have to "know" what the fuel pressure is. You can borrow a fuel pressure gauge from Autozone, Advance, etc at no charge, and it's important. I don't want you to gloss past it because it's probably the number one reason for a 99 van that won't start. If it has spark, then the crank sensor, etc. is working the way it should.
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Customer reply replied 2 years ago
Ok I'll try and c
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
Let me know what you find out, and we can continue from there.
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Customer reply replied 2 years ago
Ok
Chevy Mechanic: Jerry Newton, Chevy Technician replied 2 years ago
.
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