Ballast Ressistor

[CRM1988]

Truck keeps burning the ballast resistor :wall: Any ideas of why?

[dasbulliwagen]

If your fan is going bad, it could be pulling too many amps causing the resistor to work too hard and burn out.... replace your fan too!

[Geonovast]

How does the fan have anything to do with the resistor?

 

I would think it'd be more like a short somewhere, either in the pump or the wiring to the pump.

[dasbulliwagen]

Sorry, I was assuming the fan blower motor resistor.... Read it wrong I guess. Same goes for the ballast resistor though, if the fuel pump is pulling too many amps it could cause the resistor to burn out.... might need a fuel pump. Yould could just jump the resistor altogether, but this won't solve your problem, as eventually the fuel pump may stop working altogether, or the wires will get hot enough to catch on fire. Just though too, a high resistance could also be cause by a ground issue, check the fuel pump ground behind the tailligh too, and make sure its clean and good.

[CRM1988]

Air conditioner pump running without being turned on.Start's runs a little bit then dies.New fuel pump,new regulator,new filter,checked the ground behind the tail light.Runs a little better with the AC unplgged.Try to drive and the resistor gets hot and truck dies????????