isuzu 6hk1x manual diesel manuals46hobsonjuicepluscom Check for clogged air filters, fuel filter issues, or turbocharger malfunctions. Excessive Smoke: Might indicate injector problems, poor fuel quality, or turbocharger faults. Starting Difficulties: Inspect battery health, glow plugs, and fuel supply. Transmission I Sep 5, 2025 Read more →