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Sputters at 2500 RPM's

Tiny
TRACY L. HARVEY
  • MEMBER
  • 2001 DODGE INTREPID
  • 2.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 124,000 MILES
Car runs great until 2500 rpm's then spits, sputters, jerks and wont go past that point. Replaced cam shaft sensor and crank shaft sensor. That is what code reader said it was but still no change.
Monday, December 30th, 2019 AT 10:52 PM

2 Replies

Tiny
AL514
  • MECHANIC
  • 4,632 POSTS
Hello, it sounds like you may have a bad catalytic converter. A back pressure test should be done at the front oxygen sensor location. 1 1/2-2 psi maximum while the engine is running. If the catalytic converter is okay, doing a fuel pressure test is next, and while driving if that's when the problem occurs.
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Tuesday, December 31st, 2019 AT 3:23 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
If I can chime in. here is a guide that can help you test the catalytic converter:

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

Please run down this guide and report back.
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Tuesday, December 31st, 2019 AT 5:20 PM

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