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2000 GMC Savana 3500 7.4L Poor Idle Quality, Cuts out
Posted to GM Driveability on 3/16/2010 6 Replies

poor idle quality,misfire,scanner shows all ok,runs good for a month or two then back to rough idle,egr/purge sol bypassed no change. injector balance test good. good compression and relative [...] test intake for leak none found. vac. with pcv disconnected,go...

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Message Closed w/Summary

car Vehicle Data

2000 GMC Savana 3500

VIN 1GTHG35JXY
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out
OccursAlways
Message Closed w/Summary

car Vehicle Data

2000 GMC Savana 3500

VIN 1GTHG35JXY
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out
OccursAlways