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2000 GMC C3500 HD 7.4L Poor Idle Quality
Posted to GM Driveability on 5/21/2007 6 Replies

customer complains of extended crank time. we did major tune and fuel pump. long crank and slight rough idle still present. sent to local dealer, they said replace regulator and so i did. still there. found tsb on crank sensor, tried that too, still there. tru...

6 Replies Received (View Replies)

 
Message Closed w/Summary

car Vehicle Data

2000 GMC C3500 HD

VIN 1GBKC34J5Y
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / multi port
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways
Message Closed w/Summary

car Vehicle Data

2000 GMC C3500 HD

VIN 1GBKC34J5Y
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / multi port
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways