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Which is which?

 
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  #1 (permalink)  
Old 25 Mar 2015, 09:43 am
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Default Which is which?

So, my wife's CEL came on, she sent me a picture of it and asked why it came on. Not being Kreskin, I checked it when she got home.
The code wa a p0304, misfire on cyclinder 4.
The part I need help with is, which cylinder is no. 4.
Is it on the drivers side, or passenger side?
Dumb question, feel free to flame.

04 turbo.
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Old 25 Mar 2015, 10:08 am
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Location: Thousand Oaks, CA
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Default Re: Which is which?

It would be good to get more information first.
How many miles on the PT Cruiser?
When was the last time the spark plugs and spark plug wires were replaced?
You might want to check and make sure the hose going from the PCV to the intake manifold is not cracking or leaking. The hose is known for leaking next to the intake manifold where you can't see it very well.

Last edited by ptcruisersteve; 25 Mar 2015 at 10:18 am.
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Old 25 Mar 2015, 10:18 am
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Location: Central Florida
Posts: 4,371
Default Re: Which is which?

Quote:
Originally Posted by Leob1 View Post
So, my wife's CEL came on, she sent me a picture of it and asked why it came on. Not being Kreskin, I checked it when she got home.
The code wa a p0304, misfire on cyclinder 4.
The part I need help with is, which cylinder is no. 4.
Is it on the drivers side, or passenger side?
Dumb question, feel free to flame.

04 turbo.
2009-10-21_222346_8008a549.jpg
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Old 25 Mar 2015, 11:41 am
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Default Re: Which is which?

PERFECT!
I going to print that to refer to during my next brain cramp!
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Old 25 Mar 2015, 12:42 pm
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Default Re: Which is which?

found this on a post from 2010.

I had some other threads on this code but thought I'd share the final resolution....

I did the following over the past months...
1) Replaced Valve Cover Gaskets / Spark Plug Well Gaskets as the plugs were very wet (on top near boot) - Code did NOT clear.
2) Replaced Intake Manifold Gasket (upper) Code did NOT clear.
3) Replaced Plugs and Wires - Code did NOT clear.
4) Replace the Coil - Code did NOT clear
5) Replaced the injector (#4) - Code did NOT clear.
6) Replaced the Intake Manifold Gasket (Lower). The gasket was broken for sure - Code CLEARED!!!!

I can tell you with certainty that I now know how to take everything apart and what sizes those nuts and bolts are. Off all the things I did, #1 and #6 were the hardest.
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Old 25 Mar 2015, 01:03 pm
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Default Re: Which is which?

You are the beginning stages of solving what may or may not be a problem.

First using a OBDII Scanning Tool access the Diagnostic Connector and check for all DTC. Note them and clear them.

IF the light does not reactivate you may have simply had an anomaly. If the light returns before you worry re-check the Diagnostic connector with a scanning tool note the DTC and clear again and then return to this thread you started and report.

Going on a random problem mystery "HUNT" like the previous member posted IMO unless some parts were up for preventive or normal replacement is waste of your time and money.

You should take the time to read this.

Car Repair Advice Forum= at your own risk
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Old 25 Mar 2015, 01:15 pm
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Default Re: Which is which?

Quote:
Originally Posted by soyomb View Post
found this on a post from 2010.

I had some other threads on this code but thought I'd share the final resolution....

I did the following over the past months...
1) Replaced Valve Cover Gaskets / Spark Plug Well Gaskets as the plugs were very wet (on top near boot) - Code did NOT clear.
2) Replaced Intake Manifold Gasket (upper) Code did NOT clear.
3) Replaced Plugs and Wires - Code did NOT clear.
4) Replace the Coil - Code did NOT clear
5) Replaced the injector (#4) - Code did NOT clear.
6) Replaced the Intake Manifold Gasket (Lower). The gasket was broken for sure - Code CLEARED!!!!

I can tell you with certainty that I now know how to take everything apart and what sizes those nuts and bolts are. Off all the things I did, #1 and #6 were the hardest.
Covers all the possibilities except for lack of compression.
It is also not in order of likelihood of causing the problem.
Some diagnostics, like swapping ignition wires/plugs and see if problem moves, could've saved some parts.
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Old 25 Mar 2015, 02:09 pm
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Default Re: Which is which?

I only posted that so the op could pretty much eliminate steps 1 through 5, therefore saving him time and money.

if only step 6 remained, it would hardly be a "hunt".

for the op:

try spraying something like starter fluid around your intake manifold while the car is running. if there's an increase in idle, there's a good chance of a gasket leak.
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Old 25 Mar 2015, 03:27 pm
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Default Re: Which is which?

It does not cover all the possibilities and the original post really gives little to go on. So this is another thread that responses from some members IMO re not really helpful unless.

There just is a sound method of solving problems on vehicles that should be provided. Guessing and what other did to solve their own specific issues reall at this early point don't belong on the thread yet?

But hey what do I know right? laughing:

Let me provide this thread.


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Old 25 Mar 2015, 03:38 pm
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Default Re: Which is which?

Quote:
Originally Posted by NitroPT View Post
You are the beginning stages of solving what may or may not be a problem.

First using a OBDII Scanning Tool access the Diagnostic Connector and check for all DTC. Note them and clear them.

IF the light does not reactivate you may have simply had an anomaly. If the light returns before you worry re-check the Diagnostic connector with a scanning tool note the DTC and clear again and then return to this thread you started and report.

Going on a random problem mystery "HUNT" like the previous member posted IMO unless some parts were up for preventive or normal replacement is waste of your time and money.

You should take the time to read this.

Car Repair Advice Forum= at your own risk
NitroPT is right on the mark with that one.

It may just be a random event that threw the code. Anytime I get a code, I first check the code number and then clear it. Then I run the car and see if the code returns. Sometimes they never do. And sometimes they will stick around for a while if I don't clear them even if I know the problem has already been fixed.
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