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2005 GMC W3500 Forward W3S042 6.0L Excessive Emissions, Hesitation, Misfire
Posted to GM Driveability on 3/18/2010 3 Replies

1st this is an npr with all gm comp. 6.0 gas 4l80e trany, anyway truck will p0300 misfire and p0171. 135 and 7 only misfire. my book says app 1 should be .4-.9 volts at idle and app2 4.1-4.5 volts at idle. i have .5 on app 1 and 0 on app2. a few days ago i had...

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car Vehicle Data

2005 GMC W3500 Forward W3S042

VIN 4KLB4B1U85
Engine6.0 L / 8 cyl / GAS
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, Misfire
OccursIdle
Misc.Npr
Message Closed w/FIX

car Vehicle Data

2005 GMC W3500 Forward W3S042

VIN 4KLB4B1U85
Engine6.0 L / 8 cyl / GAS
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, Misfire
OccursIdle
Misc.Npr