Engine sputtering

1993 CADILLAC FLEETWOOD
200,000 MILES • 5.7L • RWD • AUTOMATIC
Avatar
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
Advertisement
Avatar
MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
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
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
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
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.