What causes a hard start on a diesel engine?
What causes a hard start on a diesel engine?
You state a leak, the position you say may be one of the outlet high pressure oil lines at the pump. It is common to destroy the threads if tightened too much, very common leak, lets air in the system and causes hard start warm. If your pressure sensor is fine, then your pump may be bad.
How to test hard starting 7.3L diesel engine?
Check the wires. Also plug in the block heater a couple hours before you start it to see if that will make a difference. You can do an injector buzz test with an OBD-II blue tooth plug in device which links to your phone. Look on you tube for it. Diesel tech Ron does the best job explaining how to do it. My 2cents…
Why does my Ford 7.3L start hard after sitting?
When it does start after sitting, it pukes out a large puff of what I take to be raw diesel (white vaorpish-smoke). While in for other repairs a local mechanic told her that fuel is most likely leaking in to one or more cylinders past or through the injectors, which is causing this startup issue.
What should IPR be at idle on 2002 F350?
The diagnosis for IPR is at 64.84 % at WOT. It drops to 11+% at idle. I’m thinking the IPR is bad but don’t know if the indicated 64.84 percentage is what the ECU is calling for or if that’s the actual duty cycle ???? I’m unclear as to what values the FORSCAN software is telling me.
What causes a 7.3 power stroke engine to not start?
7.3 Power Stroke Diesel Common Problem #1 : Causes No Start : Injection Pressure Regulator (IPR) Valve, located in the valley on the High Pressure Oil Pump (HPOP). These can stick, seals get damaged, have the sensor go bad or the wires get damaged.
You state a leak, the position you say may be one of the outlet high pressure oil lines at the pump. It is common to destroy the threads if tightened too much, very common leak, lets air in the system and causes hard start warm. If your pressure sensor is fine, then your pump may be bad.
What causes a 7.3L diesel engine to overheat?
7) Ford 7.3 Power Stroke Diesel Overheating Overheating is a general issue the 7.3L Ford Power Stroke engine runs into. This could be related to the radiator, thermostat, water pump, cooling fan or bad coolant. Signs of overheating should be easy to pick up on.
The diagnosis for IPR is at 64.84 % at WOT. It drops to 11+% at idle. I’m thinking the IPR is bad but don’t know if the indicated 64.84 percentage is what the ECU is calling for or if that’s the actual duty cycle ???? I’m unclear as to what values the FORSCAN software is telling me.
