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Chrysler PT Cruiser likely cause of engine code p0304, #4

 
Mopar Certified's Avatar
  • Answered by:Mopar Certified
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Customer Question

likely cause of: engine code p0304, #4 cyl misfire; plugs & wires were replaced 2 months ago. vehicle passed an emissions test (Ontario Canada) last month (4,000 km ago) with readings of "0"!

 

Country: Canada
Make: Chrysler
Model: PT Cruiser
Year: 2006
Engine: 2.4L

Already Tried:
check plug wire connections

Submitted: 919 days and 5 hours ago.
Category: Chrysler
Value: $13
Status: CLOSED

Accepted Answer

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Expert:  Mopar Certified replied919 days and 5 hours ago.

Welcome to Just Answer Chrysler my name is Mark.

If we assume the plugs and wires are still ok..........although they should be checked and tested.........then a misfire isolated to one cylinder will most likely mean either a compression problem with the #4 cylinder or a fuel delivery issue because of a bad injector.

So. A compression test would need to be done, and then you can swap the #4 injector with another cylinder and then see if the misfire moves to the new cylinder, or stays with #4.

Expert TypeTechnician
Category: Chrysler
Pos. Feedback: 97.9 %
Accepts: 2339
Answered: 12/13/2010

Experience: 24 Year Factory Trained and Certified

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