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2000 Chevrolet Malibu LS 3.1L Surge, Poor Fuel Economy
Posted to GM Driveability on 7/25/2005 3 Replies

My customer brought in a 2000 Malibu with really bad fuel economy, no codes and a surge at cruise. Fuel trims look good, cat looks good, EGR is functioning and the car runs out great EXCEPT I can watch the knock retard ramp up to as high as -13 degrees at ligh...

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car Vehicle Data

2000 Chevrolet Malibu LS

VIN 1G1NE52J6Y
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsSurge, Poor Fuel Economy
OccursAlways, Under Load, Cruise
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Malibu LS

VIN 1G1NE52J6Y
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsSurge, Poor Fuel Economy
OccursAlways, Under Load, Cruise