Need Help! 4.7L that can not be fixed! - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 06-16-2014, 05:46 AM
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Re: Need Help! 4.7L that can not be fixed!

Did you solve this problem yet?
If not, did you check the fuel trims? A P0300 is a multiple misfire often due to a too lean mixture.

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  #14  
Old 02-03-2016, 03:02 PM
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Re: Need Help! 4.7L that can not be fixed!

what abou the IAC? that hasn't been mentioned yet. the idle air control valve/solenoid on the throttle body itself or even the tps?
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