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2011 Chrysler 300 Engine problem

Tiny
JOHNNYCWWILLIAMS
  • MEMBER
  • 2011 CHRYSLER 300
  • 5.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
No. 7 coil still showing problem, Have repace it, still having a misfire. Code read 300 and p300. Dealer stated they have to tear down engine to find out problem. Is this true? The vehicle is not making noise.
Wednesday, December 18th, 2013 AT 8:27 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try checking the compression, injector and sparkplug for that cylinder
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Wednesday, December 18th, 2013 AT 9:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Are you sure it is the #7 cylinder? A PO300 is a random misfire. Have you done the things that the last tech has recommended? As far as tearing down the engine, usually a mechanic can get a good idea what the problem is by doing some general testing that doesn't require the engine to be taken apart.
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Thursday, December 19th, 2013 AT 5:29 AM

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