surging when traveling up a hill

2007 BUICK LA CROSSE
150,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC
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SMILEYTOM
  • MEMBER
  • 2 POSTS
Car is surging when you go up a hill, can give it gas and it smooths out.
Fuel pressure is 58 so we do not think it is the fuel pump.

Reviewed question emailed and this is correct.
Thank you

No video or image
Apr 17, 2018 at 12:19 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good evening.

It could be the catalytic converter partially clogged. that is a common issue.

Roy

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/engine-surges
Apr 17, 2018 at 5:25 PM
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SMILEYTOM
  • MEMBER
  • 2 POSTS
Thank you very much for your help. We will check this.
Apr 18, 2018 at 8:47 AM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Keep us updated.

Roy
Apr 18, 2018 at 10:15 AM
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