Jump to content
Mopar1973Man.Com LLC
  • Welcome To Mopar1973Man.Com LLC

    We are a privately owned support forum for the Dodge Ram Cummins Diesels. All information is free to read for everyone. To interact or ask questions you must have a subscription plan to enable all other features beyond reading. Please go over to the Subscription Page and pick out a plan that fits you best. At any time you wish to cancel the subscription please go back over to the Subscription Page and hit the Cancel button and your subscription will be stopped. All subscriptions are auto-renewing. 

Question on Fuel temperature


Recommended Posts

Ok I have been reading posts on fuel temperature effecting the vp44.No one is saying what is a good temperature for the fuel!How hot is to hot?How cold is to cold?If the overflow valve is not allowing fuel to return to the tank then you are stuck with the temperature that is coming from the tank.If the overflow valve is open then the temperature is what is generated under the hood and from friction in the pump and injector pump!So would a inline cooler be a improvement? then if the air is to cold it seems like it would be a detrament and you would want a inline heater.Just some thoughts in my head and I would like to see other peoples thought on this

Link to comment
Share on other sites

  • Staff

From the service manual. When the temperature is below 45 ±8 degrees F, the temperature sensor allows current to flow to the heater elementwarming the fuel. When the temperature is above 75 ±8 degrees F, the sensor stops current flow to the heaterelement.I would think if your getting hot fuel in the summer a cooler may not be bad, but you would want to bypass it in the winter. I am wanting to add another heater to my first filter, Fleetguard makes a 300w 1-14 sandwich heater with the same thermostat at the OE heater.

Link to comment
Share on other sites

  • 1 month later...

Reading this post, when I installed the air dog 100 I went straight the 44,bypassed the heater. I haven't not noticed any problems in the winter, at 4800 ft. So should install some type of heat for the fuel? What would you look for in problems, sorry about jumping in.

Link to comment
Share on other sites

×
×
  • Create New...