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International Automotive Technicians Network
2004 Jeep Wrangler Rubicon 4.0L Low Power
Posted to Chrysler Driveability on 7/21/2010 5 Replies

Had codes po300,po303,[...] sparkplugs & checked [...] syncronizer test-showed [...] timing according to scanner,was very [...] fuel pressure test,49 lbs at idle & under [...] runs very good until warm & driving at higway [...] has enough power to pull any hil...

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car Vehicle Data

2004 Jeep Wrangler Rubicon

VIN 1F4FA69S04
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsLow Power
OccursUnder Load
Message Closed

car Vehicle Data

2004 Jeep Wrangler Rubicon

VIN 1F4FA69S04
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsLow Power
OccursUnder Load