Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi, my name is ***** ***** is caused by a bad injector, and is common, when they go bd, they return too much fuel and this drops the rail pressure in all of them, how many miles do you have on this?
No, all the fuel return is done by the injectors,there is no chck valve, now you also mention the lift pump pressure is 14 lbs, but when you start it it drops to zero, is this correct?
and its the lift pump pressure that is dropping, not the rail pressure,correct?
are you losing power on the orange/red wire at the fuel pump module, once it is started?
if you have power to the pump and the prssure out of the pump drops to zero, then it can only be a bad pump, nothing else,Tim
No, it should not drop to zero, the only thing that can cause this is a bad lift pump, or a bad filter, but the filter is unlikely if it comes up to 14 when the key is on, then when it need the fuel pressure, the lift pump cany keep up with demand, Tim
Yes, the desired and actual pressure should be very close,Tim
within 500 psi of each other,Tim