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New engine or what

Tiny
TAMIA JAY
  • MEMBER
  • 2005 CHRYSLER SEBRING
  • 2.4L
  • 4 CYL
  • AUTOMATIC
  • 154,600 MILES
I had a code p4091 on my car so I took it to the car shop. The mechanic changed my spark plugs and oil, reset the computer and said that should fix the problem. It did not of course, the light came back on this time he said sounded like my fuel pump was the only problem. Reset again this time the light came back on, but the car would not crank. Got it back to the shop this time he says oil is in my muffler so I need an engine. I am no mechanic, but I know something is really crazy with this story.
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Tuesday, September 26th, 2017 AT 7:41 PM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
That code does not come up. Can you double check the code and get back to me please?

Here is a guide to get us started:

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

Please let us know what you find.

Cheers, Ken
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Wednesday, September 27th, 2017 AT 2:07 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,578 POSTS
Did you by chance mean - P0491-AIR INJECTION SYSTEM PERFORMANCE, that would be a valid code.

It relates to the air injection pump that sends extra air into the exhaust system to help the converter work.

I would probably look for a different shop.
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Wednesday, September 27th, 2017 AT 6:23 PM
Tiny
TAMIA JAY
  • MEMBER
  • 3 POSTS
Yes you had the right code and thanks a lot for your advise.
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Wednesday, September 27th, 2017 AT 6:27 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,578 POSTS
Okay, That code is saying that the air pump is not working properly. They put that pump basically under the car and they get water in them and fail, very common.

What it is supposed to do is pull air from the air cleaner and pump it to the exhaust so the converter can burn off the bad chemicals and give cleaner emissions.
My thoughts are to open the air intake ducts and see if you have oil in them from a bad PCV system, it is also common.

If the engine runs okay and that is the only item wrong, it should not need an engine. Probably needs a replacement pump and cleaning of the air intake system. Plus testing the PCV parts.
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Thursday, September 28th, 2017 AT 7:44 AM
Tiny
TAMIA JAY
  • MEMBER
  • 3 POSTS
Thank you!Your advise was right on point.I cant thank you enough.
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Thursday, September 28th, 2017 AT 7:19 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,578 POSTS
Your welcome. Please let us know what you end up doing with it as it might help others if they have a similar problem.
Thank you for using 2carpros. Com Please return with any automotive questions.
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Friday, September 29th, 2017 AT 9:22 AM

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