Barely idles and bogs when i give it gas

2000 OLDSMOBILE ALERO
164,000 MILES • 4 CYL • 2WD • AUTOMATIC
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SQUARES_BEWARE
  • MEMBER
  • 1 POST
Gets up to about 2000 rpm and wants to shut off. Changed spark plugs, fuel filter.
Jan 18, 2018 at 3:34 PM
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ASEMASTER6371
  • Experienced Mechanic
  • 52,796 POSTS
Good morning.

This could either be low fuel pressure from a failing fuel pump or a clogged catalytic converter not allowing the motor to breathe.
The fuel pressure needs to be checked. if you do not have a tester you can rent one at a parts store.
To check the catalytic converter, you also need a tool called a back pressure tester. you remove the O2 sensor and insert the tool and measure the back pressure.

Roy
Jan 18, 2018 at 7:43 PM
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RENEE L
  • MEMBER
  • 1,260 POSTS
Hi SQUARES_BEWARE,

Here is a helpful link to an article from this site with step by step instructions and pictures explaining the process of checking the fuel-system-pressure-and-regulator.

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

If you need further assistance please come back to the site we are here to help.

Thank you for visiting 2CarPros.com.

Kindest regards,

Renee
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Jan 19, 2018 at 3:29 AM
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