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2005 GMC Savana 2500 4.8L Poor Idle Quality, Stall
Posted to GM Driveability on 10/5/2017 11 Replies

Van came in a few months ago with a very high idle. Cleaned maf, tb, iac, checked for intake leaks etc. Nothing i did helped, so i got a new iac, didn't change, so i start messing with the old one. Plugged it in with it out of the tb and it was moving fine, so...

11 Replies Received (View Replies)

  Related Documents & Media  2005 GMC Savana 2500

 
Message Closed w/FIX

car Vehicle Data

2005 GMC Savana 2500

VIN 1GTGG25V55
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursCold, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0506Idle Speed Control System Lower Than Expected
Message Closed w/FIX

car Vehicle Data

2005 GMC Savana 2500

VIN 1GTGG25V55
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursCold, Idle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0506Idle Speed Control System Lower Than Expected