I have a 2001 7.3 powerstroke at an idle truck runs smooth after driving about maybe 15 or 20 miles truck losses acceleration. I have pulled tank and clean all screens and filters I have done fuell pressure tests at idle and under load pressure doesn't drop at all or raise at all it's running 64 psi I'm new to the deisel world and would love some help figuring this out I've put new idm new accelerator I'm also getting a series of beeps from.under dash 5 sets of 5 and my blower for heater won't shut off after truck.is off cam some one please help

 

What mods (if any) do you have or is your rig completely stock? Any codes? Check engine light on?

 

there are no mods and as far as I know its stock the light is on but can't get any codes

 

That's odd...… Have a scanner/ code reader im assuming? If not, drive it (if you can) to an autozone or oreilly auto parts house and see if they can scan it for you. its free!

 

I have taken to both and there scanners get same results no codes but engine light still on

 

Well ****.....Im stumped :hum: