Hesitation and low power

185,000 MILES • 2.7L • 4 CYL • 2WD • MANUAL
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DENTERO
  • MEMBER
  • 1 POST
My truck usually of a recent experiences low power when accelerated.
My 3rz engine works perfectly on idle.
When accelerated, the engine revs good and fires well but the truck drags.
It looses power to respond to move.
And when on load, is worst. It drags even though one can hear the engine raising normally.
I do not understand this.
What can I do?
Aug 21, 2017 at 3:30 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,604 POSTS
It sounds like a classic plugged catalytic converter which causes low power much like what you have described.

Here are a few guides to confirm the problem and get it fixed:

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

and

https://www.2carpros.com/articles/catalytic-converter-replacement

and

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

Please let us know what happens.

Cheers, Ken

Aug 22, 2017 at 8:18 AM
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