Slow acceleration

Tiny
EVERETT NORMAN
  • MEMBER
  • 1991 CADILLAC FLEETWOOD
  • 4.9L
  • V8
  • 2WD
  • AUTOMATIC
  • 102,784 MILES
When taking off, the transmission, under ride the engine.
Monday, October 28th, 2019 AT 11:01 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Hello,

It sounds like you may have a clogged catalytic converter. To be sure here is a guide to help confirm the issue:

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

This guide can help as well:

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

Please run down these guides and report back.
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Tuesday, October 29th, 2019 AT 11:09 AM

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