1998 GMC K2500 Sierra SL 5.7L Poor Fuel Economy
shop says knock sensor is at fault after 2 weeks of testing . no codes, only drivability isssue is noisy(lazy) lifter since engine rebuild . has anyone else ever seen a knock sensor pass all tests and yet cause this problem shop says lifter is not causing this...
Summary posted 10/15/2007
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Vehicle Data1998 GMC K2500 Sierra SL
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Message Closed w/Summary
Vehicle Data
1998 GMC K2500 Sierra SL
VIN | NONE VINR |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / vortec |
Emissions | OBD-II Compliant |
Symptoms | Poor Fuel Economy |
Occurs | Always |
Misc. | Hd Truck New Engine |