Question about 2002 Chrysler PT Cruiser

7 Answers

Engine starts and idels perfect after warmup engine stops.

After engine stops, turning the key to restart, the engine will always restart immediately then again after about two minutes engine will stop again, but will restart immediately when key turned to start. If the engine is not restarted and the key is left in the run position you can hear the electric fuel pump running and there is clicking of some of the relays in the engine compartment fuze box. Again, if the key is then turned to start the engine fires off immediately and runs perfectly for another minute or two until it stops again, (same sequence). This condition seems to only occur at RPM levels below 1200(aprox) When driving at road speed the engine does not shut off.

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  • gmerrick Dec 19, 2008

    I HAD ALREADY TRIED THE FIX SUGGESTED BY MR GOODWRECH. OBVIOUSLY SOMETHING ELSE IS CREATING THE PROBLEM. NEED OTHER POSSIBLE SOLUTIONS.

  • gmerrick Dec 19, 2008

    BRAND NEW SPARK PLUGS HAD BEEN INSTALLED AND THE FUEL PUMP TESTED PERFECTLY.

  • gmerrick Dec 24, 2008

    fuel pump relay was ok still have problem

  • gmerrick Jan 06, 2009

    I HAVE TRIED ALL SOLUTIONS SUGGESTED AND STILL HAVE PROBLEM! PLEASE DON'T GIVE UP I NEED AN ANSWER TO GET MY PT CRUISER BACK AND RUNNING RIGHT. THANKS.

  • gmerrick Jan 10, 2009

    I APPRECIATE THE RESPONSES THAT HAVE BEEN SENT. I HAVE TRIED AND/OR CHECKED EACH ONE BUT TO NO AVAIL! I STILL HAVE TH PROBLEM, IT IS UNRESOLVED. DOES ANYONE HAVE A SOLUTION OR DO THEY NEED MORE INFORMATION THAT I CAN GIVE TO HELP THEM WITH THEIR DIAGNOSIS. I REALLY NEED TO GET MY PT BACK ON THE ROAD. THANKING YOU IN ADVANCE.

    GEORGE J.


  • gmerrick Jan 19, 2009

    HAVE TRIED ALL SUGGESTIONS, STILL HAVE PROBLEM. PLEASE HELP ME WITH A SOLUTION!

  • gmerrick May 04, 2009

    Unable to read error codes by switching key on and off, on and off, and on. Could the PCM be locked? If so how to unlock?

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7 Answers

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  • 416 Answers

It might be fuel system problems (filter clogged). Idleing modul problems (damaged, loose, or faulty idle air control valve, idle speed actuator, idle stop solenoid). Also might be faulty mass air flow sensor. But if you can hear some clicking sound it might be faulty electronic spark control module.
Also I would check the distributor cap and rotor
Also you can try self diagnostic as shown here and get the codes
http://www.zianet.com/SLLover/page67i.html
Good Luck

Posted on Dec 24, 2008

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This may be caused by a defective Idle speed air control valve, this is located on the throttle body, the way to test it is pull the air intake hose off and listen when the engine starts to stall u should hear a loud sucking noise as the valve tries to keep the engine running. Another thing I don't see where u have ever run the test on the electronics to see if any trouble codes are present in the system, this is the very 1st thing that should have been done, the electronics of your car can pick up the slightest error in engine operation, Kragen Auto and Auto Zone will do this for free, have the test run and let me know if any codes are present.

Posted on Dec 24, 2008

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  • 306 Answers

Get a readout of any fault codes that may be store in the engine controller which may shed some light. If you have an Autozone parts store nearbe they will do a readout for free, of an independent garage should do it for under $40. Tell me the 4-digit fault code numbers, what you were told they mean, and what they said was the cost to fix. Then we can compare that to the shop manual. 
A common hard start cause that often will not set a fault code is the exhaust gas recirculation valve (egr). The first thing I would do is check the mechanical function of the egr valve which is located along a pipe that runs from the left exhaust manifold (on the side of the engine facing the front of the car) to the intake manifold area (where the incoming air in the large rubber tube enters the throttle). That valve is metal and has a round fitting with a vacuum hose attached, mounted on the top of the valve, and the round part is attached to the main body of the valve by a sort of saddle.  Inside the open saddle you will see a metal rod (with a slot) that connects the round top fitting to to the valve body. That rod is a stem on the valve and it is supposed to go in and out in response to the engine vacuum which varies with RPM and throttle opening (gas pedal position). Take a spray can of WD-40 or other penetrating lubricant and spray the stem where it enters the valve body and then use a regular screwdriver blade tip inserted in the slot to lever the valve in and out to try and free up its motion. Also check all the rubber vacuum hoses associated with the valve and a nearby vacuum solenoid valve. If the valve seems to open (against the action of a spring) and close firmly by the spring action when using the screwdriver blade to facilitate the motion, then you should be able to now start the engine. You can, once it is idling, check that the valve stem moves when you rev the engine from idle to 2500 rpm and back to idle. If it still won't start, then removing and cleaning the interior of the valve, or buying a new one if it seems too crudy and corroded inside, is the next step to getting the engine to start.

Posted on Dec 24, 2008

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  • 916 Answers

Look for unplugged or broken vacuum lines also check your fuel filter look for unplugged sensors and corroded wires, is there a check engine light on? if so try to get a OBDII scanner (some stores loan them for free)

This problem could also be caused by your fuel injection.
Try replacing the fuel filter and any broken or unplugged vacuum lines and if this does not help clean the fuel injection and check the Oxygen sensor as it can have the same effect.

If not of these help check the fuel pressure and post the results

Posted on Dec 24, 2008

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  • 740 Answers

A bad fuel pump relay. Good Luck

Posted on Dec 19, 2008

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  • 479 Answers

Check out the spark plugs.and fuel pump 

Posted on Dec 19, 2008

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  • 12 Answers

Check the throttle body if it is all black in side its choking at idle clean throttle and iac motor

Posted on Dec 19, 2008

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