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International Automotive Technicians Network
2003 Chevrolet Impala LS 3.8L Hesitation, lack of power
Posted to GM Driveability on 11/30/2007 31 Replies

Hello everyone, Thanks now for the advice. I am the third tech to attemp repair on this vehicle and am stumped. Vehicle came in with a P0401 code and a lack of power. They replaced to EGR valve which cleared the code. When running at light throttle vehicle run...

31 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Impala LS

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Impala LS

VIN 2G1WH52K13
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpi
EmissionsOBD-II Compliant
SymptomsHesitation, Lack of Power
OccursCold, Hot, Under Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0401EGR System Insufficient Flow Detected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Impala LS

VIN 2G1WH52K13
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpi
EmissionsOBD-II Compliant
SymptomsHesitation, Lack of Power
OccursCold, Hot, Under Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0401EGR System Insufficient Flow Detected