Injection system may need adjustment: GMC V1500 Suburban Engine & Powertrain

Problem overview

The injection system may need to be adjusted more frequently than recommended.

2 people reported this problem

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GMC V1500 Suburban vehicles with this problem

2 model years affected

1991 GMC R1500 Suburban

1990 GMC R1500 Suburban

1991 GMC R1500 Suburban

1990 GMC R1500 Suburban

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Injection system may need adjustment on GMC V1500 Suburban

Problem overview

GMC V1500 Suburban vehicles with this problem

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