losing speed

1990 MITSUBISHI ECLIPSE
230,000 MILES
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PYRO89
  • MEMBER
  • 3 POSTS
While I was driving on the freeway at 65 mph I accelerated to avoid another driver. When I pressed down on the gas pedal the car made some small jerking motions and began to decelerate. While in 5th gear it decelerated all the way down to 55 mph. Since it did go down I tried to put it in 4th gear to compensate. As I did that the car tried to slow even further, so I quickly returned it to 5th gear where it topped out at 55 mph. This has not happened before as I have taken this car as far as 80 mph before.
May 6, 2013 at 5:33 PM
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ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
could be low fuel pressure or bad cat converters.


you only need to post 1 time

roy
May 6, 2013 at 5:35 PM
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PYRO89
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sorry. was having trouble posting. so low fuel pressure or bad cat converters. how can I find out if either or is the problem.
May 6, 2013 at 5:39 PM
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ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
use a fuel pressure tester for the fuel and a back pressure tester for the cats/

roy
May 6, 2013 at 5:42 PM
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PYRO89
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ok. Thank you for the help. I shall try them out and see what happens.
May 6, 2013 at 5:43 PM
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