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Engine misfires at 3,000 RPMs?

Tiny
JIM DONOVAN
  • MEMBER
  • 2001 FORD RANGER
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 116,000 MILES
When in Park my engine is fine until I reach 3000 RMP and then it starts to stumble like it is misfiring. What could it be?
Tuesday, May 23rd, 2023 AT 7:39 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
This can be many things such as a broken valve spring bad spark plugs/wire/coil fuel injector, flat camshaft, can you scan the PCM for codes and let me know?

Here are two guides to help us get started:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

and

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over these guides and get back to us.

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Tuesday, May 23rd, 2023 AT 1:43 PM
Tiny
JIM DONOVAN
  • MEMBER
  • 5 POSTS
Hello Ken, I ran a diagnostics check and got no codes. It will be a few days before I can do anything else because I have to go into the hospital for some tests. I will get back to you as soon as I can. Thanks, Jim.
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Tuesday, May 23rd, 2023 AT 2:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Okay, let me know hope things go well for you.
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Thursday, May 25th, 2023 AT 4:30 PM

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