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2004 Chevrolet Express 1500 5.3L Poor Idle Quality, Surge,
Posted to GM Driveability on 4/20/2009 4 Replies

We have a problem with this van jumping about 900rpm randomly at idle. It will jump up randomly if sitting at a light. It does not happen all the time and the fuel trims are about -3 so Im ruling out vaccum leak. On the scan tool the only pid out of spec is TP...

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  Related Documents & Media  2004 Chevrolet Express 1500

 
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car Vehicle Data

2004 Chevrolet Express 1500

VIN 1GCFH15T84
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge,
OccursIdle

Trouble Codes

P0507Idle Speed Control System Higher Than Expected
Message Closed

car Vehicle Data

2004 Chevrolet Express 1500

VIN 1GCFH15T84
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge,
OccursIdle

Trouble Codes

P0507Idle Speed Control System Higher Than Expected