Engine Will Not Start: Correction

Check electrical connections.

Check and/or replace air filter.

Check and/or replace glow plugs or controls.

Remove restrictions.

Inspect fuel delivery system.

Replace filter. See SYSTEM/COMPONENT TESTS - 6.5L DIESEL article in the ENGINE PERFORMANCE section.

Remove and replace fuel.

Remove restrictions.

See appropriate TESTS W/CODES - 6.5L DIESEL article below.

TESTS W/CODES - 6.5L DIESEL (for C/K Pickup, Sierra Pickup, Suburban, Tahoe & Yukon)
TESTS W/CODES - 6.5L DIESEL (for "P" & "G" Series Van)