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04 quest wont rev above 2000 rpm Forums > > 04 quest wont rev above 2000 rpm 04 quest wont rev above 2000 rpm
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  #1  
Old 04-29-2010, 06:43 PM
redmon
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Default 04 quest wont rev above 2000 rpm

i have an 04 quest that ran perfect until the battery shot and replaced with new one and now it will idle perfect and revs up to 2000 rpm great, but after that, i dont remember exact rpm, but it acts like fuel starts shutting down and lifters start rattling. i noticed a CEL light on but dont have a code reader, but will soon. I was wondering what you guys thought about where to start? thanks, jeff.
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  #2  
Old 04-30-2010, 02:31 AM
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Sounds as if the engine had gone into fail safe mode. You really need to pull the codes and let us know what you find.
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Old 04-30-2010, 04:02 AM
redmon
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K. thanks, i will try and do that this afternoon and get back to ya. jeff.
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Old 04-30-2010, 01:37 PM
redmon
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ok, i scanned for codes and a P0300 code which is cylinder misfiring. could it be a coil going bad? if its a coil, why would it run fine until over 2500 rpm? thanks, jeff.
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Old 05-02-2010, 02:58 AM
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Refer to the service manual chapter EC to diagnosis the miss fire code.Sorry i'am unable to open my Quest file.
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