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1987 Chevrolet R30 Custom Deluxe 7.4L Excessive Emissions, Poor Fuel Economy
Posted to GM Driveability on 8/22/2005 7 Replies

after trk is warm if u start to drive the idle will start to increase until u are at approx [...] bdm on veh u can watch the iac motor start to increase slowly until it is wide [...] only happens sometimes not [...] after test drive and cycle key on and off an...

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Message Closed w/FIX

car Vehicle Data

1987 Chevrolet R30 Custom Deluxe

VIN 1GCHR33N7H
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / tbi
Emissionsobd1
SymptomsExcessive Emissions, Poor Fuel Economy
OccursUnder Load, Cruise, Idle
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet R30 Custom Deluxe

VIN 1GCHR33N7H
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / tbi
Emissionsobd1
SymptomsExcessive Emissions, Poor Fuel Economy
OccursUnder Load, Cruise, Idle