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2007 Chevrolet Avalanche LTZ 5.3L Poor Idle Quality
Posted to GM Driveability on 11/8/2012 10 Replies

After active valve lifter replacement(battery disconnected), high idle speed in p/n. If placed in gear idle speed will slowly drop to normal. If placed in p/n idle will remain normal until throttle is depressed. It will then go to 2000 rpm. When this occurrs, ...

10 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Avalanche LTZ

 
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Avalanche LTZ

VIN 3GNEC12087
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle, Intermittently

Trouble Codes

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

car Vehicle Data

2007 Chevrolet Avalanche LTZ

VIN 3GNEC12087
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle, Intermittently

Trouble Codes

P0507Idle Speed Control System Higher Than Expected