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1995 GMC Jimmy 4.3L Excessive Emissions
Posted to GM Driveability on 6/10/2002 11 Replies

Truck came in, failed emissions test. HC and NOX good. CO is 20.44 gpm and 20.00 is allowed. Egr valve was sticking and setting a code 32. Replaced valve and cleaned top end. It has failed two more times always CO and always close. Scan data looks good. Fuel p...

11 Replies Received (View Replies)

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Message Closed w/FIX

car Vehicle Data

1995 GMC Jimmy

VIN 1GKDT13W75
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
OccursAlways
Message Closed w/FIX

car Vehicle Data

1995 GMC Jimmy

VIN 1GKDT13W75
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
OccursAlways