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Q:

No power on 1990 Ford Crown Victoria

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
When driving, car decelerates at 40mph to practically 0 before picking up speed again
(1) Answer
(1) Comments
could be a cat converter plugged up. could be low fuel pressure too.
you should have a shop check it out and give you a bid.

Roy