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2003 Chevrolet Express 3500 6.0L High Idle
Posted to GM Driveability on 12/6/2006 8 Replies

Vehicle came in with high idle. When started the idle is fine for less than 1 minute then it starts to raise. It gets to @ 2100 then stays there. I have fixed a vacuum leak at the fuel pressure regulator hose. While smoke testing for vacuum leaks I found the i...

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  Related Documents & Media  2003 Chevrolet Express 3500

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Express 3500

VIN 1GDJG31U13
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsNot OBD-II Compliant
SymptomsHigh Idle
OccursHot
Misc.Box Van

Trouble Codes

P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Express 3500

VIN 1GDJG31U13
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsNot OBD-II Compliant
SymptomsHigh Idle
OccursHot
Misc.Box Van

Trouble Codes

P0507Idle Speed Control System Higher Than Expected