Good point Pat. Here that makes sense. Here we'd Stand up for the Part" but on DP there actually like 10 posters in that whole thread that actually have had there heads off there block, lol. and on the DP it seems more about the name or the person rather than the part all together. Hell if you...
Maybe I shouldnt have posted this lol, cause heres what i saw:
FUEL HEATER
OPERATION
The element inside the heater assembly is made of a Positive Temperature Coefficient (PTC) material, and has power applied to it by the fuel heater relay anytime the ignition key is in the ON position...
In my research for my issue I found this. Thought it might be good to post in case anyone needs some help.
FUEL SYSTEM
A Robert Bosch high-pressure fuel injection pump is used.
DESCRIPTION
The fuel system on the 6.6L Common Rail Diesel Engine uses a rotary mechanical fuel...
Well it was not the regulator.
The fuel heater stays on all the time.
I need to find out what commands it, because it always has power to it to keep it on, even when truck is off.
looks like problem solved.
Fuel heater never shuts off.
I need to figure out what commands it to stay on because its not the heater itself, the plug has 12v to it all the time, hot, cold, on, and off....
Ya know, if they synchronized stop lights, we would spend less time idling our vehicles and reduce emissions, and we'd get to where we want quicker and be less stressed.....
I agree Mike, I think my truck goes into hot mode around 180*.... I am only experiencing this condition when fuel temp reaches 180*ish.
So far un hooking the fuel heater has droped my temps to 120*, I am thinking heater is stuck on because it should shut off after the fuel temp is 70*.
Heres the wierd part dan. The fuel temp is measured on low pressure side. When I unplugged my fuel heater the temp would not go above 130*. It seems the the problem I'm having the fuel goes up to +180ish* and then I get the problem and the fuel temp climbs to 205*.
I am thinking the high temp...
Ill do a DIY but I am still not sure thats the problem. Also I have purchased a box of torx-25 for the job, I twisted 2 already changing the reg. in my 2nd cp3 :D
I unpluged the fuel filter assembly heater and now fue is hanging around 120*.
School Me: What would too hot of fuel do to our trucks? Think thats whats causing my issue? Maybe fuel gets hot, reg opens up fully to move fuel through...???
Normal around town driving in 65* weather?
My temp when my truck is normal is 150ish
but when I have my high rail pressure (29,000psi) condition, the fuel temp is at 205*
(*F), not Celsius.
hahah, come on up Tommy! was gonna do it today but the part didnt show up last night, it got here this morning, I gotta go pick it up, Prolly try to knock it out tonight, or tomorrow now, lol.