Starting System: Description

1995 GMC Forward Control 4.3 Z, StandardSECTION Description

Five types of starters are used: SD-210/250/260, PG-260 and 28MT series. The first series is designated SD (Straight Drive) because the pinion is driven directly by the armature shaft. Wound field coils energize pole pieces that are arranged around the armature. These are used on gasoline engines.

The PG-260 and 28MT starters have a pinion that is driven by a gear reduction system. These starters are used on diesel or large displacement gasoline engines. The PG-260 starter should not be dissembled for any reason and is serviceable only by complete replacement.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.