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2011 Dodge Grand Caravan 3.6L. it is misfiring on cylinder

1,2,5,6. it has a insufficient...
2011 Dodge Grand Caravan 3.6L. it is misfiring on cylinder 1,2,5,6. it has a insufficient ionization on ignition coil 2...codes that are present are: P0302, P2305, P0113, P000d, P0420, P0430, P0300, P0305, P0306, P0301. I tried new spark plugs but with same misfiring result. i tried 2 new Coil packs on cylinder 5 & 6 with new spark plugs and still same misfiring result. i did a compression test on all cylinders: 1,2,3,4 are a little over 150 psi...cylinder 6 was 130 psi...and cylinder 6 was a little over 240 psi...the engine is receiving fuel so no fuel problem there....any help will be greatly appreciated.
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Answered in 43 minutes by:
2/29/2016
Robert R
Robert R, ASE Certified Master
Category: Dodge
Satisfied Customers: 4,598
Experience: Dodge Master Certified, Dodge Sprinter Certified
Verified

Hello, welcome and thanks for asking your question. My name is*****'m a Certified Auto Technician with 28+ years experience. I will do my best to assist you. please keep in mind that I may need to ask questions of you before I can answer. When you reply please feel free to add as much detailed information as possible pertaining to your concern.

How many miles are on your 2011 Caravan? Can you post the last 8 digits of the VIN so I can research this for you?

Keep me posted...

Thank you,

Robert

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Customer reply replied 1 year ago
i believe it has 210,000..and vin# ***** *****

I've seen problems with valve guides wearing out causing intermittent issues with valves sealing. Compression test normally results in good readings with this issue. At this time, I would recommend to pull the heads for inspection of the valve guides, if worn out. New heads are recommended unless you can find a machine shop that can replace the valve guides and perform a valve job...

On insufficient ionization code, I recommend to carefully check the wiring, if all ok and coils are ok, you may need to replace the PCM..

Keep me posted and let me know if you have any additional questions...

Thank you,

Robert

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Customer reply replied 1 year ago
i will check everything today

sounds good, keep me posted and don't hesitate to ask any additional questions you may have..

Thank you,

Robert

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Robert R
Robert R, ASE Certified Master
Category: Dodge
Satisfied Customers: 4,598
Experience: Dodge Master Certified, Dodge Sprinter Certified
Verified
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Wow. Thanks for the positive rating.

Wasn't expecting anything on this question after this amount of time elapsed from my last response...

Thank you,

Robert

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Robert R
Robert R
Robert R, ASE Certified Master
Category: Dodge
Satisfied Customers: 4,598
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