I have a 2006 5.9 CTD. Does anyone know if I have a fuel heater, how it works and were it is located. I just read someone's thread and it mentioned fuel heaters. This is the first I have heard of them.

 

to go along with ur thread....i have a 02 5.9 with the plug...if i plug it in at night, and dont have a timer on the plug..so it just charges all night..will that do anything..its getting in the 20s and 30s here in Asheville and was wondering if it will do anything to just plug it in at night and let it go all night long without haveing a timer set to like 2 hours before i leave...will it hurt anything?

 

The fuel heater and what you are referring to are 2 different things, NCummins, you are talking about the block heater. It does not hurt to leave it plugged in all night, that is what it is designed for. The reason we all use timers is because they draw a lot of amps, leave it plugged in all night for a month and watch your electric bill skyrocket, plus you only need a few hours of heat, it only gets so warm and a few hours is enough to do it.

 

I leave mine plugged in all night and never had a problem. I am on call for work so I never know if I have to leave so I can't use a timer, I wish I could. The fuel heater is news to me. I was just wondering if they all have it or is that something aftermarket. If it is in my truck, where is it and how does it work...only when it is plugged in or when it is running?

 

I have my block heater on a timer that goes on 4 hours before I leave for work.

Assuming the 2006's are the same as my 98, the fuel heater is located in the fuel filter canister.

 

Does the fuel heater come on with ignition or with the block heater.

THANKS!

 

woops! once again...younging at this..not yet a pro..lol...but good too know!

 

The fuel heater is like mayfair said in the filter housing. It comes on with the ignition when the ECM decides it needs to (don't recall the exact conditions).

 

THANKS!

 

comes on at around 43* F and stays on until 75* F or so...