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Multiple codes and chugging problem

 
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  #1 (permalink)  
Old 13 Sep 2014, 12:11 pm
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Question Multiple codes and chugging problem

Hi all,

My fiance's 2004 PT Cruiser GT 4 4.2L has been having chugging and RPM limit issues lately...she has taken it to a local shop on many occasions for this same problem and it usually seems fixed for about 20 minutes, then it starts back up again.

Codes read from the shop:
1st visit:
P0441 evap emmission control purge flow fault
P0344 camshaft position sensor A-bank 1 ckt intermittent
P0340 camshaft position sensor A-bank 1 circuit malfunction
Actions taken: replaced air filter, cam sensor (aftermarket), timing belt (needed it done anyway)
2nd visit:
P0441 evap system
P0456 evap system small leak detected
P0344 camshaft position sensor circuit
Actions taken: replaced cam sensor with chrysler brand, replaced crank sensor
3rd visit:
P0440 evap system failure
P0300 multiple misfire
P0339 crank position sensor intermittent
Actions taken: fixed vacuum hose leak

Problem still exists after all of these "fixes"

Notes: I looked over the wiring from the cam sensor and it looked okay, removed cam sensor and put it right back on. After clearing the codes, it hasn't started chugging yet but it makes a small popping noise and rumbles a little when I step hard on the gas...no issues when accelerating slowly. Didn't really start having any of the chugging problems until sometime after A/C system was repaired (not sure what repair they did to it)...could it be related to that?


Any information would be extremely helpful! Even if it's a recommendation to sell the car...
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Old 13 Sep 2014, 12:16 pm
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Default Re: Multiple codes and chugging problem

also forgot to mention, the breather hose has a few cracks on it where it attaches to the engine...somebody taped it up with what looks like electrical tape. Not sure if this has anything to do with it, but I thought I'd try to mention any information I have!

Please and thank you on all help!
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Old 13 Sep 2014, 12:51 pm
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Default Re: Multiple codes and chugging problem

Did the engine light come back on after the third fix?
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Old 13 Sep 2014, 04:19 pm
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Default Re: Multiple codes and chugging problem

Yes it did. It flashed when it came on the first time. After turning the car off and turning it back on later, the check engine light was solid.
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Old 13 Sep 2014, 05:28 pm
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Default Re: Multiple codes and chugging problem

Steve

Your DTCs are resembling an intake manifold pulled during a spark plug change and someone turning the engine over. To many not related to normal collective incidences unless the PCM is failing. Which has not been ruled out or determined at this point.

You have way to many DTC's that are not necessarily together unless you recently completely submerged your POT in a lake?

At this point START over!

CLEAR only with a Diagnostic scanning tool ALL the DTC's and also RE_SET the readiness file.

FOLLOW THAT STEP EXACTLY AS SUGGESTED.


Than if you can drive the PT for a few miles (30-50)and re check using a scanning tool ONLY for the DTC's.
If you can not drive than let the engine idle for about 10-15 minutes and re check for DTC.


Than come back and post the DTC numbers.

Anything less than that you are wasting not only our time trying to help you but your own time.
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Old 13 Sep 2014, 05:52 pm
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Default Re: Multiple codes and chugging problem

Nitro,

Thanks. That sounds like a good course of action. I agree, codes all over the place. I thought that might ring a bell for somebody more experienced than me.

Is there a link describing how to clear the DTC with a scanning tool or do you suggest I have a shop/dealer do it? Same question to reset the readiness file.
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Old 13 Sep 2014, 05:58 pm
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Default Re: Multiple codes and chugging problem

Quote:
Originally Posted by stevesz19 View Post
Nitro,

Thanks. That sounds like a good course of action. I agree, codes all over the place. I thought that might ring a bell for somebody more experienced than me.

Is there a link describing how to clear the DTC with a scanning tool or do you suggest I have a shop/dealer do it? Same question to reset the readiness file.
Just talk to a shop prior to bringing it to them. Explain that you want you OBDII Diagnostic port scanned for all codes and than cleared.

You also want to view the readiness file for faults and than re-set.

If they do not understand know what your are talking about or asking why, pass on them IMO are not well trained in Diagnostic work on vehicles.


This thread shows the readiness area often overlooked by many mechanic's.
Even if you clear any and all DTC (engine codes) this area will remain in fault until the effected DTC was correct and verified via a couple of full engine cycles. Re-setting them places all in fault until such engine cycling is done and all DTC are corrected.
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Old 13 Sep 2014, 06:14 pm
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Default Re: Multiple codes and chugging problem

Thanks for the quick replies, Nitro.

I'll tell the mechanics that I want those things done and I'll come back with the codes/readiness file info before they clear/reset them, then I'll drive again and see what happens...

If issues still are present, I'll go back and get the codes from the same place and report them here.

Thanks again! I should post again within the next few days!
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Old 16 Sep 2014, 06:22 pm
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Default Re: Multiple codes and chugging problem

Okay, after all that, now we're only getting one code:

P0339 - Crankshaft Position Sensor 'A' Circuit Intermittent

Crankshaft sensor HAS been replaced (see original post).
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Old 16 Sep 2014, 07:32 pm
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Default Re: Multiple codes and chugging problem

Is the crank sensor you replaced a Chrysler brand?
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