1999 Isuzu N-Series Service and Repair Manual
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1999 Isuzu N-Series Service and Repair Manual
Big changes arrived for the 1999 Isuzu N-Series. The 4.8-liter 4HE1-TC direct-injection turbodiesel replaced the old 3.9-liter engine, and the Class 5 NQR joined the NPR and NPR HD, broadening the line. A 5.7-liter V8 gasoline engine remained available in the NPR models. With a new diesel, new wiring and a new model, this service and repair manual keeps strictly to 1999 data: procedures, specifications, torque values, wiring diagrams, diagnostics and maintenance schedules for engine, transmission, brakes, steering and cab.
Engines covered
- 4.8L inline-four turbodiesel — SOHC, turbocharged, diesel
- 5.7L V8 — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door tilt cab chassis
Trims covered
- NPR
- NPR HD
- NQR
Known issues on the 1999 N-Series. No recalls are on federal record for this model year. NHTSA lists two owner complaints, one about the suspension and one about tires. The suspension and wheel chapters in this manual give the inspection limits and torque values used when checking those components.