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Still getting a P0304 Fault Code?????

 
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Old 24 Jan 2011, 03:39 pm
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Default Still getting a P0304 Fault Code?????

Hopefully someone can help me out. I have a 2008 Cruiser and the check engine light came on so I took it to my local Chrysler Dealer and they said I need a tune up(change plugs, wire) and the code was P0304 and they wanted to charge me $480!!! I told them I can do this myself, well took the car home and changed the spark plugs and wires and erased the code. Well drove the car again later on the next day and check engine light comes on again so I took it to the auto parts store so they could let me know the code and again it was P0304. So I decided to change the coil also hoping this would solve the problem, well it didn't. Light keeps coming on and I have erased the code each time I make a change by removing the battery out of the circuit for at least 10 minutes. I have change the intake manifold gaskets and the MAP sensor also, but the P0304 codes keeps coming back like a scarey night mare.

Does anyone know whats going on with my PT???
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Old 24 Jan 2011, 03:50 pm
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Default Re: Still getting a P0304 Fault Code?????

isnt a 304 the cam sensor???
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Old 24 Jan 2011, 04:25 pm
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Default Re: Still getting a P0304 Fault Code?????

P0304 is an engine missfire in the 4th cylinder.
it could be poor fuel quality what kind of fuel are you using?
Bad Injector
Bad EGR valve
and low compression
just some ideas.
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Old 24 Jan 2011, 04:50 pm
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Default Re: Still getting a P0304 Fault Code?????

Compression test?
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Old 24 Jan 2011, 05:01 pm
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Default Re: Still getting a P0304 Fault Code?????

Quote:
Originally Posted by Kawizx9r View Post
Compression test?
compression/leakdown test because of the fact that it is a misfire on cylinder 4 only it could be a bad/burned valve
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Old 24 Jan 2011, 09:32 pm
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Default Re: Still getting a P0304 Fault Code?????

Quote:
Originally Posted by turbosnail7 View Post
compression/leakdown test because of the fact that it is a misfire on cylinder 4 only it could be a bad/burned valve
I meant to the OP.

Didn't read your post or any other post before saying anything

Carry on!
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Old 24 Jan 2011, 11:20 pm
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Default Re: Still getting a P0304 Fault Code?????

Quote:
Originally Posted by caballero77 View Post
Hopefully someone can help me out. I have a 2008 Cruiser and the check engine light came on so I took it to my local Chrysler Dealer and they said I need a tune up(change plugs, wire) and the code was P0304 and they wanted to charge me $480!!! I told them I can do this myself, well took the car home and changed the spark plugs and wires and erased the code. Well drove the car again later on the next day and check engine light comes on again so I took it to the auto parts store so they could let me know the code and again it was P0304. So I decided to change the coil also hoping this would solve the problem, well it didn't. Light keeps coming on and I have erased the code each time I make a change by removing the battery out of the circuit for at least 10 minutes. I have change the intake manifold gaskets and the MAP sensor also, but the P0304 codes keeps coming back like a scarey night mare.

Does anyone know whats going on with my PT???

..you can buy a $99 'code checker' and plug it in and get the code yourself.
Amazon.com: Actron CP9125 PocketScan Code Reader: Automotive
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Old 25 Jan 2011, 01:47 pm
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Default Re: Still getting a P0304 Fault Code?????

Changed injector #4 also. Still having issue.

Guy did a compression test and he said it was ok. I wasn't too pleased with him though. I may have to just take it in to the dealer and have them figure it out. Still under warranty till 72,000 miles, already at 69,000. Hopefully my extended warranty will cover it since it seems to be a bad/burnt valve. May just have to eat the $100 deductible.

Thanks for all the input!
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Old 26 Jan 2011, 02:34 pm
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Default Re: Still getting a P0304 Fault Code?????

Swap wire and plug with another cylinder and see if it moves. Possible you got a bad plug/wire - happened to me once.
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Old 28 Jan 2011, 07:24 pm
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Default Re: Still getting a P0304 Fault Code?????

It could be a burnt valve my 06 had one @42000 miles ,code PO303 paid almost 900.00 dollars. Runs great now.
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