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International Automotive Technicians Network
2003 GMC Savana 3500 6.0L Poor Idle Quality, Surge, MIL Lamp on
Posted to GM Driveability on 3/9/2007 8 Replies

hey techs. got this gmc box van that runs great most of the time. every once in a blue moon.(twice in the last three weeeks this idle will flare up to 900 to 1000 rpm and hang up there. i thought i had bad iac motor. replaced it and then relearned idle . iac s...

8 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Savana 3500

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Savana 3500

VIN 1GDJG31U73
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursIntermittently
Misc.Boxvan

Trouble Codes

P
P0300Multiple Misfire Detected
P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

2003 GMC Savana 3500

VIN 1GDJG31U73
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursIntermittently
Misc.Boxvan

Trouble Codes

P
P0300Multiple Misfire Detected
P0507Idle Speed Control System Higher Than Expected