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1992 Geo Metro 1.0L Poor Fuel Economy, spark knock
Posted to GM Driveability on 8/30/2007 7 Replies

Hello all, This old Geo spark knocks always on hills and hard acceleration. Egr passages have been cleaned and the egr valve is funtional as well. Timing has been set according to emissions label and advances properly. Checked for a knock sensor and the vehicl...

FIX posted 9/5/2007

7 Replies Received (View Replies)

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car Vehicle Data

1992 Geo Metro

VIN 2C1MR6462N
Engine1.0 L / 3 cyl / GAS
Trans3-speed Automatic (Electronic)
DeliveryFI
SymptomsPoor Fuel Economy, Spark Knock
OccursAlways