RHKTriton wrote:Start with the simple stuff before ripping out fuel pumps, injectors, etc.
I would have thought an injector stuck open would let some fuel into a cylinder resulting in combustion of some sort.
aids84 wrote:The way CRD injectors work is similar to a quick exhaust valve. Some fuel goes out the pilot which allows fuel pressure to lift up the plunger against spring pressure and inject fuel out the nozzle. If a pilot circuit on just one injector isn't sealing properly the rail pressure won't build to adequate levels to fire the injectors.
Most rail pressure related non-start issues I have seen in the past 10 year working on these things turned out to be a dodgy injector.
DibbyDibbyDJ wrote:The Electronic injectors on a Triton have a positive fuel pressure behind the needle of between 30 and 200 Mpa. With the fuel pressure being so high, and changeable, the injectors are opened and closed by the solenoid, which uses in excess of 100v with high current to control the fuel delivery. Not relying on fuel pressure to lift plunger and control delivery.
Testing these injectors is very simple , using an oscilloscope with an amp clamp, it would be easy to see a fault injector.
Without proper diagnosis the OP could easily be led down a very long, winding and expensive path to fix this problem
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