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Ask Tim's Auto Repair Your Own Question
Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 15486
Experience:  Have owned a repair shop for 25 yrs.
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What if the engine does not start? when I turn the ignition

Customer Question

What if the engine does not start? when I turn the ignition the engine starts for a moment backfires and dies out.
Submitted: 1 year ago.
Category: Chevy
Expert:  Tim's Auto Repair replied 1 year ago.
Hi,My name is Tim,
I will do my best to assist you
what is the year make AND MODEL?
WHAT ENGINE DO YOU HAVE?
tell me all you can
thanks
Customer: replied 1 year ago.
1999 chevy express 1500 5.7 liter engine and I have put a fuel pump and fuel filter and it will start for a few seconds then backfire and engine will die.
Customer: replied 1 year ago.
That is all. I can't start the van.
Customer: replied 1 year ago.
Are you going to help me or not.
Expert:  Tim's Auto Repair replied 1 year ago.
ok..tell me,,,does the security light stay on?
Customer: replied 1 year ago.
no
Customer: replied 1 year ago.
what does the security light have to do with my engine not starting. Are you a mechanic?
Customer: replied 1 year ago.
you are not giving me any answers.
Expert:  Tim's Auto Repair replied 1 year ago.
ok
it has everything to do with it.
so the security light doesnt come on at all?..it should come on for a few seconds when you first turn the key on,then go off,,and,,it doesnt stay on with the key on,,correct?
[please give me time to respond,it is a little slower on this end.thanks]
Customer: replied 1 year ago.
I am just frustrated because I can't get it started. Yes it goes on when I first turn on the key, but it doesn't stay on after that.
Expert:  Tim's Auto Repair replied 1 year ago.
ok
i know you have installed a new fuelpump,,can you tell me how much fuel pressure you have now?.why did you install the pump?tell me what originally happen
Customer: replied 1 year ago.
Well the engine wouldn't start it would turn and backfire once in a while. A mechanic told me it was the fuel pump so I replaced it and the fuel filter as well.
Expert:  Tim's Auto Repair replied 1 year ago.
so,,you replaced the pump without checking the fuel pressure first??.
tell me,,will it start with a prime[starting fluid or a little fuel into the throttle body]?
Customer: replied 1 year ago.
It will start for a little while and then die.
Expert:  Tim's Auto Repair replied 1 year ago.
now,,tell me,,does the engine light stay on?if so,can you give me the computer trouble codes?
Customer: replied 1 year ago.
I will get back to you later. Some came up and I can't stay online.
Expert:  Tim's Auto Repair replied 1 year ago.
ok
just let me know when you can..i will answer and give you my thoughts when i am back on line
thanks
Customer: replied 1 year ago.
well send me your thoughts and I will be back on line later on today. Thank you
Expert:  Tim's Auto Repair replied 1 year ago.
here is my thoughts[without codes] first,you need to check the fuel pressure,,these must have no less than 60psi at all times,,it is common to get a bad new pump..
also,your problem may just be the distributer cap,these will go bad on the inside where they are wormed and there is no good way to test them,,replace the distributer cap and rotor if the pressure is good
thanks
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