GMC C2500 OBD1 Codes

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OBD1 CodesP Codes (Powertrain)

    1993 GMC C2500 Code 26?????

    1993 GMC C2500
    1 ANSWER
    Asked by thirdeyetemple

    1991 GMC C2500 Obd1 Code 85 - Prom Error

    1991 GMC C2500
    1 ANSWER
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    Asked by ray_carson
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