Low power

1992 GMC VANDURA
170,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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SCOTTSANDS197892
  • MEMBER
  • 1 POST
My van keeps stalling cutting out when driving no power.
Sep 15, 2019 at 8:59 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Hello,

It sounds like you may have a clogged catalytic converter. here are two guides you can go over to confirm the issue:

https://www.2carpros.com/articles/engine-has-low-power-output

and

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

Please run down these guides and report back.

Sep 16, 2019 at 12:10 PM
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