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1990 GMC Suburban 2500 Questions

Get answers to questions about your 1990 GMC Suburban 2500 at RepairPal. Find solutions, diagnose problems and get back on the road.

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My 1990 GMC suburban just quit while driving it. It lost electrical power and the only thing that works is the head lights. Is there a fuse or fuse link some where that has blown.

Rough idle under no load, and roughacceleration.