Will not start

205,000 MILES • 3.1L • 6 CYL • 2WD • AUTOMATIC
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BLACKLIGHTN
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I was driving my car and it drove fine, later drove it and shut it off and would not crank back up. The car has been sitting for almost three years and cannot seem to figure out what is going on with it. I did at one point get it to start but then heard knocking when push gas, now I cannot get it to start at all. I did hook it up to battery charger for four days and nothing. I do hear fuel pump kick on and battery is good, it is getting gas, checked the pressure. I am really at a loss what to look for. I really like to get it running so I have a work vehicle because my Tahoe (which is good strong and running)is high on miles(293,750) and do not know when something might happen to it. Besides car not running it is a decent car. Any suggestions I know when it was running and heard the knock, I have been told timing. I have also been told that there could be build up in muffler. Any suggestions will help. Thanks
Aug 1, 2018 at 9:04 AM
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ASEMASTER6371
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Good evening.

Did you drop the tank and flush out the fuel tank? Three years and fuel is no good. Also, the pump should be replaced as well.

You may have fuel but it may be bad fuel and low pressure.

Roy
Aug 1, 2018 at 9:54 AM
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BLACKLIGHTN
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I never dropped the tank, but I did add gas about five months ago.
Aug 1, 2018 at 11:12 AM
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ASEMASTER6371
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I would start by checking the fuel pressure. It may be a bad pump.

Roy

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Aug 1, 2018 at 7:19 PM
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BLACKLIGHTN
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The fuel pressure is good. We did check that.
Aug 1, 2018 at 10:04 PM
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ASEMASTER6371
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Okay, what was the pressure reading?
Aug 1, 2018 at 10:28 PM
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BLACKLIGHTN
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I do not remember when we did it it was when it first was not running so close to three years ago.
Aug 2, 2018 at 12:45 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
That where I would start. You need to verify the pressure.

You can rent a tester at a parts store to check. 45 is what you need.

Roy

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Aug 2, 2018 at 1:12 AM
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