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GMC Suburban 1500 Problems

"Hard start" problems due to faulty glow plugs and wiring on GMC Suburban 1500

Problem Description and Possible Solution

Faulty glow plugs and incorrect wiring to the glow plugs have been known to cause "hard start" problems.
(2 people reported this problem)

GMC Suburban 1500 Vehicles With This Problem

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Average mileage: (–)
Engine affected: 6.2L V8 Diesel
2 model years affected: 1990, 1991
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