Low power

2003 SUBARU IMPREZA
175,800 MILES • 2.5L • 4 CYL • 4WD • AUTOMATIC
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STEVEN8200
  • MEMBER
  • 1 POST
Hello, I have recently bought the car listed above RS model used. It started having a problem with the rpm's jumping down anywhere from 500 rpm to 2,000 rpm depending on how much I press the gas pedal past a certain point as long as I only press the gas far enough to hold about 35-40 mph on a straight away it's fine but any farther or going uphill with the pedal pressed to maintain any more than about 20 mph the rpm's drop. There's also a white smoke coming from under the car where what seems to be near the start of the exhaust system. I was wondering if you know what the problem is and/or a way to fix it? please and thank you.
Aug 4, 2019 at 12:13 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Hello,

This sounds like you have a clogged catalytic converter. To be sure this guide will show you how to test it:

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.

Aug 5, 2019 at 4:15 PM
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