RETURN LINE FUEL PRESSURE

[7.3 powerstrok]

moved to psd

 

[aaklingler]

There should not be pressure at the return line to the tank. I'm not sure what the second part of your question is, try to reword it.

 

[Dieselcrawler]

you got other issues. fuel will not cool an engine THAT much.

 

[79jasper]

Something is not right with that. Wmo needs a hotter burn to lessen coking. Maybe you aren't firing on all cylinders? May wanna check your thermostat also.

 

[OLDBULL8]

That's kind of a loaded question. Ambient temp, towing, hilly terrain, speed, all those things effect engine temp. The normal running temp is from 180 to 195 with the OEM t'stat.