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1997 Chrysler Concorde Misfire Detected

Tiny
TSHEHAN
  • MEMBER
  • 1997 CHRYSLER CONCORDE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 181,296 MILES
I have a 1997 Chrysler Conorde what idles low and has a cylinder misfire detected- Cylinder # 5. I have replaced the EGR value about four weeks ago. - Because I received that code and than about two weeks later I keep getting the misfire detected. I have replaced the Spark plugs, wires, and coil. After two to three days the code will come up again. What I'm I missing.
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Sunday, February 22nd, 2009 AT 9:34 PM

13 Replies

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Give the actual code numbers that you receive from the scan tool. In the mean time, here is the diagnostic for engine misfire.


https://www.2carpros.com/forum/automotive_pictures/55316_97concordetc107a_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_97concordetc107a2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_97concordetc107a3_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_97concordetc107a4_1.jpg

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Sunday, February 22nd, 2009 AT 11:55 PM
Tiny
TSHEHAN
  • MEMBER
  • 2 POSTS
The Code is P0305.

Thanks
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Monday, February 23rd, 2009 AT 9:15 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
The diagnostic works for P0300 through P0306. I kind of figured the code was P0305, for cylinder 5. So perform the diagnostic, concentrating on cylinder 5.
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Monday, February 23rd, 2009 AT 9:18 PM
Tiny
ROSSICONSULT
  • MEMBER
  • 6 POSTS
I have the exact same problem. 70,000 miles. Replaced all above. No luck.?
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Tuesday, March 3rd, 2009 AT 6:16 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Have you followed the diagnostic steps?
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Tuesday, March 3rd, 2009 AT 9:54 PM
Tiny
ROSSICONSULT
  • MEMBER
  • 6 POSTS
Thank you for your response Zackman. Actually, my mechanic has done the following. Replaced the wires, plugs, injector, and tested compression. The engine light stays on and the engine idle is rough, although plenty of power with smooth acceleration. I am assuming both the engine light and rough idle are related, which may not be the case. I am also assuming P0305 is the trouble code as he indicated #5 was the issue. The diagnostic steps above are out of my competence since I lack the equipment although I was once a fair wrench. One thing I did notice is that the idle smoothed and the light went out when I filled the tank full with fuel. This happened two times. The rough idle and light returned when the fuel indicator reached the half way mark. I am thinking of having the fuel filter changed. My mechanic is thinking an intake manifold check. Again, thank you for your suggestions.
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Wednesday, March 4th, 2009 AT 5:21 AM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Tell your mechanic, before he performs the intake manifold, replace the fuel filter and check fuel pressure at the rail at the fuel rail.
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Wednesday, March 4th, 2009 AT 9:13 PM
Tiny
ROSSICONSULT
  • MEMBER
  • 6 POSTS
Yup, sounds good. Thanks.
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Thursday, March 5th, 2009 AT 8:45 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Sure thing.
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Thursday, March 5th, 2009 AT 9:32 PM
Tiny
ROSSICONSULT
  • MEMBER
  • 6 POSTS
I want to replace the fuel filter on my own. Will removing the fuel cap be enough to release the fuel pressure so I can replace the filter?
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Wednesday, March 11th, 2009 AT 5:33 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Gas cap removal is OK to release the tank pressure but not enough to remove the pressure in the line. Here is the instruction.


https://www.2carpros.com/forum/automotive_pictures/55316_97concordefp_1.jpg

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Wednesday, March 11th, 2009 AT 8:19 PM
Tiny
ROSSICONSULT
  • MEMBER
  • 6 POSTS
Okay. Thank you very much. I do appreciate your help.
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+1
Thursday, March 12th, 2009 AT 6:40 AM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
No problemo.
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Thursday, March 12th, 2009 AT 10:45 AM

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