Question about 2004 Chrysler PT Cruiser

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2004 turbo 2.4 PT. 16,800 miles.running rough. Codes 0300 and 2302. Replaced plugs and plug wires. No help

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  • mjor767 Aug 24, 2010

    Also changed the coil. still no help. 0300 code gone but 2302 remains

  • mjor767 Aug 26, 2010

    Also replaced the coil, still no help. Turned out to be the wire from the PCM to the coil. It had gone high resistive. For some reason Chrysler routed this wire over the head and shielded it, but naturally it still went bad. When it was replaced, everything worked fine and no more codes

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: 06 PT Cruiser - Stalling - Rough Idle

HI;

I AM A CHRYSLER PARTS/SERVICE MANAGER AND HAVE SEEN THESE TURBOS BLOW INTAKE TO PLENUM GASKETS. WE ARE A SMALL DEALER AND HAVE SEEN 3 HAPPEN AND ALSO WAS VERY DIFFICULT TO DIAGNOSE. WE WERE ABOUT TO PULL THE HEAD ON ONE WHEN WE FOUND THE GASKET SUCKED IN. PART IS CHEAP AND REPAIR NOT TERRIBLE .HAVE YOUR TECH SPRAY CLEANER AROUND SEAM BETWEEN INTAKE AND PLENUM ENGINE SHOULD DIE DOWN WHEN YOU HIT THE LEAK

Posted on Oct 22, 2008

  • 1 Answer

SOURCE: P0302 Engine Code

Acroding to the codes it is a # 2 cylinder miss fire , sounds to me like there is a lot of carbon build up

Posted on Dec 06, 2008

MrScary66613
  • 1990 Answers

SOURCE: pt cruiser rough idling

Replace your Fuel Filter and see if it does not Help. Even a Partially Clogged Fuel Filter will cause this Problem.

Posted on Jan 24, 2009

  • 744 Answers

SOURCE: 2.7 l misfire after changing plugs

From karjunkie:

If the plugs get wet, then you have a spark problem somewhere in the ignition system. Pull a spark plug and hold it against a ground while you turn the engine over. You need to see a fat blue spark. If not, check the distributor, spark plug wires and coils. An easy way to test for spark is with an inexpensive spark tester. This is a device that is readily available at most auto supply stores. If the plugs do not fire properly, check the spark plug wires for fraying or cracking. Next, you need to check the coil(s). If firing voltage is low (weak spark), measure the coil primary and secondary resistance with an ohmmeter. If it is out of specifications, replace the coil. Also, make sure the coil is receiving normal voltage from the PCM or ignition module. If it is low, check the charging system for anything that may be reducing alternator output (battery and alternator cable connections, ground connections and voltage output).

Posted on Mar 22, 2009

jgwhomeequip
  • 1902 Answers

SOURCE: This is a contnuation of

P0300 is
Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly.
A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.
A code P0300 may mean that one or more of the following has happened:

  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective computer
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic convertermag-glass_10x10.gif has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

P0032 and P0038 are both of your Oxygen sensors that have gone bad and need replacing, make sure that you go OEM on these parts. Parts houses usually have something different and they sometimes work and sometimes dont.

Posted on May 20, 2011

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