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2003 Cadillac DeVille 4.6L Poor Idle Quality, Stall, Misfire
Posted to GM Driveability on 10/15/2008 10 Replies

G.M. Techs your knowledge is needed.I have lost my --- on this one. Did have a bad vaccum leak,quick bucks, yea right 5 days later,1-3-5-7 missing randomly,compression chk. all above 140. Found T.S.B. on reprogram called dealer been done, hoping to pawn it on ...

10 Replies Received (View Replies)

  Related Documents & Media  2003 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

2003 Cadillac DeVille

VIN 1G6KD54Y83
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, Misfire
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected
P0506Idle Speed Control System Lower Than Expected
P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

2003 Cadillac DeVille

VIN 1G6KD54Y83
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, Misfire
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected
P0506Idle Speed Control System Lower Than Expected
P0507Idle Speed Control System Higher Than Expected