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Case Study: Troubleshooting VOLVO Diesel Injector 1661060 (Series DAF) with Cross Reference Numbers 1725282, 1742535
A fleet operator reported operational issues with their long-haul trucks equipped with VOLVO diesel injector 1661060. The equipment exhibited hard starting, rough idle, reduced fuel efficiency. After inspection, the problem was traced to the DAF series injectors, which have cross-reference numbers 1725282 and 1742535 for different VOLVO engine models.
· Primary issue: nozzle coking and carbon deposits affecting fuel delivery and atomization
· Secondary issue: poor quality fuel
· Secondary issue: air leaks in fuel lines
· replace injectors and implement fuel quality control
· Clean fuel tank and fuel lines
· Replace primary and secondary fuel filters
· Perform fuel system pressure test
After repair: fuel efficiency improved by 10%. The fleet now maintains inventory of 1725282 and 1742535 as backup units to minimize downtime when 1661060 is not immediately available.
