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1998 Dodge Avenger P0400 Code Random cylinder misfire

Tiny
HOLLYWOODJT
  • MEMBER
  • 1998 DODGE AVENGER
Engine Performance problem
1998 Dodge Avenger 6 cyl Front Wheel Drive Automatic

New plugs, wires, cap, rotor button, TPS, carb cleaner, injector cleaner. Out of ideas
Wednesday, March 10th, 2010 AT 1:43 PM

8 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Hi, I think you mean p0300, random misfire. There are a few things that can cause this, a bad intake manifold gasket, egr valve, catalytic converter, even several bad injectors can cause this too
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Wednesday, March 10th, 2010 AT 2:31 PM
Tiny
SPEEDPROSHOP
  • MEMBER
  • 12 POSTS
Scan and reading misfire
misfire all plug 97 dodge avenger 2.4l 4cyl..
change coil ,plugs and wire,clean throttle body
same problem all the time
please help


https://www.2carpros.com/forum/automotive_pictures/511957_0921jin_20_1.jpg


https://www.2carpros.com/forum/automotive_pictures/511957_0921jin_20_2.jpg

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Friday, September 24th, 2010 AT 3:52 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Nice car, ok, you've covered all that. Now you should check a couple of simple things, and all these cause a misfire, check/change air filter, pcv valve, and intake manifold gasket, /vacuum leaks.
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Friday, September 24th, 2010 AT 10:03 AM
Tiny
SPEEDPROSHOP
  • MEMBER
  • 12 POSTS
Air filter new. Let you no from your answer thanks
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Friday, September 24th, 2010 AT 10:14 AM
Tiny
SPEEDPROSHOP
  • MEMBER
  • 12 POSTS
Maybe pcv when change plugs I add 2 with bit of oil on them
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Friday, September 24th, 2010 AT 10:17 AM
Tiny
SPEEDPROSHOP
  • MEMBER
  • 12 POSTS
I did lots of stuff spread around intake no leak
change sencor at and of throttle body no change
change one vacum pipe was crack no change
plug air filter coil wire all new added injector clener to gas and throttle body spray can in again no change
again random misfire, clean every part

what is left to do
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Saturday, September 25th, 2010 AT 12:31 PM
Tiny
SPEEDPROSHOP
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Forgot change pcv ok
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Saturday, September 25th, 2010 AT 12:31 PM
Tiny
SPEEDPROSHOP
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  • 12 POSTS
Forgot change pcv ok[/quote:5d592285ae]

only thing left to do is change gas filter and check timing
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Saturday, September 25th, 2010 AT 12:38 PM

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