Engine sputtering

1993 CADILLAC FLEETWOOD
200,000 MILES • 5.7L • RWD • AUTOMATIC
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JOHNNY TELLEZ
  • MEMBER
  • 1 POST
When I start the car it starts off fine and as I drive it and when going up hill it feels like it takes a while to pick up speed.
Jun 13, 2017 at 6:23 PM
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MHPAUTOS
  • CAR REPAIR CONTRIBUTOR
  • 31,937 POSTS
start with a tune up, plugs filters, leads and do a compression test as well just to make sure there is no hidden problem internally.
Jun 14, 2017 at 4:23 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Hello,

If I can add it could be a plugged catalytic converter.

Here is a test that can confirm the problem.

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

and

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

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

Jun 14, 2017 at 3:31 PM