How Do I Perform An Injector Leak Back Test? uniteddiesel.co.uk/diesel-injector-pump-repairs/faqs Pressure loss within a common rail fuel system can often result in one or more of the following symptoms, Hard or difficult starting Erratic or uneven tick over or idle Lumpy running and hesitation on acceleration Smoke on tick over or acceleration Lack of power or even a total shut down of the system One of the main reasons for pressure loss is due to excessive fuel being returned to the fuel tank, also known as back leakage. Once the injector/s suffers from excessive back leakage, the fuel pump cannot generate enough pressure to enable the system to operate. This is more pronounced at starting or tick over due to the fact that the pressure generated by the pump is directly related to the engines revolutions, which are lower at, start and tick over. In a colder climate the engine rotates slightly slower thus lowering pump pressure whilst with warmer fuel the viscosity is thinner thus allowing worn injector parts to leak more, increasing back leakage. See more at uniteddiesel.co.uk/docs/faqs/bosch-common-rail-diesel-injectors-checking-back-leakage-1398762965-1401121695.pdf
Posted on: Sun, 09 Nov 2014 19:33:41 +0000
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