1987 GMC Astro Service and Repair Manual
This factory service and repair manual for the 1987 GMC Astro covers three diesel engines — the turbocharged 14.0L inline-six, the 9.0L V6 and the 12.1L V8 — in a truck offered as a low tilt or high tilt tractor and as a high tilt straight truck, under four designations. With three engines and three body configurations, most of a shop's questions are about which figures apply, and the manual answers that by separating engine specifications, torque values and diagnostics from the chassis and cab material.
Engines covered
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 9.0L V6 (552 cu in) — diesel
- 12.1L V8 (736 cu in) — diesel
Body styles covered
- Tractor truck, low tilt
- Tractor truck, high tilt
- Straight truck, high tilt
Trims covered
- D9K042
- D9K064
- D9L042
- D9L064
Known issues on the 1987 Astro. The federal record for this truck is empty in both columns — no recall action, and not one owner complaint at NHTSA. The manual's coverage runs instead to the mechanical detail a working truck needs. The 9.0L V6, the 12.1L V8 and the turbocharged 14.0L inline-six are each given procedures and specifications, the torque values that go with them, wiring diagrams and diagnostics, while the cab, frame, driveline and electrical sections cover both tilt arrangements and both truck configurations in one book.
