Air heater Problems

DID YOU CHECK THE GRIDE HEATER OR SELENIODE
CUMMINS USE GRIDE HEATER (INTAKE HEATER) TO REPLACE GLOW PLUGS
SELENOIDE IS SPECIAL FOR THAT JOB MAY LOOK LIKE REGULAR BUT ITS NOT
CHECK WITH KEY ON EARLY IN AM TO SEE IF HEATER IS GETTING POWER
USED AT 12 VOLT TEST LIGHT AT HEATER INPUT MAKE SURE GROUND IS GOOD
IF NO POWER CHECK SELENOIDE TO SEE IF POWER IS THERE IF NO POWER
CHECK LIVE SIDE OF SELENIDE THEN CHECK SIGNAL SIDE (KEY ACTIVATED SMALL WIRE) IF NO SIGNAL POWER CHECK FUSE IF NO MAIN POWER BACK TRACK TO BATTERY

DTC P0113 is Intake Air / Charge Temperature Sensor High,
Check wiring to the sensor and if that is good then the sensor may be dirty or bad.

the link below shows what it looks like and has a price for the sensor.

http://www.genosgarage.com/prodinfo.asp?number=4984570

Go to pdftown.com and download the service manual for free. I think the 2005 one is corrupt tho......so get the 03 or the 06. Otherwise go on the Dodge or the Cummins forums and they have all kinds of help and advice and often photo walk-thru's of all kinds of repairs.

Well, Hate to say this to you but your Cummins 24v turbo diesel does not have glow plugs. The fuel temperature necessary for proper ignition is heated by an element inside your fuel filter housing.

I'm no 'expert' but it sounds like possibly 2 different problems. Your heat comes from warm/hot coolant circulating through the heater core, and the fan blowing air through/over it. If your thermostat is not opening the coolant won't circulate. Thermostat is a not too difficult or costly starting place. No air flow leads me to think you have a blower motor issue, perhaps start with the fuse. Hope this helps.

I had a 2001 Dodge 3500 with the same issue. In my case, the "air blend door motor" failed. I had it fixed at a Dodge dealership - the motor itself was only about $125 but it cost another $900 for labor - they had to remove the dash & center dash console in order to get to the motor. It did fix the problem though.

Actually i think it is starving for air much more than fuel. Check your air filter, it's probably very dirty or there is something cloging the air intake on either side of the filter. I once saw a diesel start to **** in its 2 air filters cause they were too dirty. It sucked them into the intake duct just enough for the corners to pry and let the air through the newly created holes. So check the air filter first and air intake ducts to make sure it has all the air it needs cause monster diesels need monster air.

the orfice has a filter and my be plugged up

This is a design issue in the Cummins engine. Dodge solved the problem in 2008/09 larger engine by making it a closed crankcase vent system thus the residue is re-burnt if it makes it to the intake. They never tried earlier to solve it because they were afraid of a runaway engine. I made my own vent system using a large air compressor oil separator and tapped into the vent and oil return pipe before the check valve. I also then routed the vent to the air intake box on the side open to the outside air as far from the suction as possible! I used an old air cleaner vent with the fiber filter fitting through the side of the box. Use a separator with 3/4 inch intake fittings. It stops the mess with around town drives but after a long trip you'll want to change the air filter and wipe out the box! Always make sure the system never plugs! Clean the separator every time you change oil. It's better than stock but that engine is just messy the way Dodge allowed it to be built! If you improve upon this idea post it so I can benefit!

may be a check valve letting warm expanded fuel to slowly leak back to the tank causing hard start. When starting cold its harder to move the cold thick fluid. Check into it. Good luck..