esgdakota

Hey Guys and Gals
So I was working on the truck today and i was installing a new throttle return spring when i noticed that there were some wires that were not connected and were broken and melted.
I fuguired out that they go to the fuel heater. so i unplugged the harness and jump on here to see what i could find. I found that alot of people just remove the fuel heater but leave the pre filter. So i found a how to on how to remove the heater. In the how to it said to remove the fuel temp sensor with a t-15 torx. The question i have is if i remove the fuel temp sensor will it leak? why does the fuel temp sensor need to be removed?

Also I was looking at the lift pump and noticed that the rubber boot on the plunger that you use to prime the system is falling off! should i replace the lift pump cause of that boot on just leave it alone?

Thanks for the help!

patdaly

I haven't gotten rid of my fuel heater, but I believe you remove the whole thing, not just the element. The body should unscrew like the bowl did, and the bowl should screw right in where the FH was.

No reason to change the lift pump, most of ours have rotted rubber.

infidel

If the heater isn't leaking there is no real reason to remove it, just disconnect the wires or remove the small relay next to the shutdown solenoid relay on the firewall.
Over heating wires are the reason they start leaking.
Not getting hot = no leaks.

esgdakota

Thanks guys
The heater was leaking in the plug as it is shown in the how to!
I just needed to know if i needed to remove the temp sensor.

As far as the fuel pump gos i will just leave it alone untill it shows sign of wear. when does a lift pump usally go up? I plan to install a fuel pressure asap!

thanks for the help!!!!

jst652

yesterday i was preforming the very same thing but replacing the the fuel shut down relay. started the truck and it was starving for fuel.had to give fuel for the first time to start.got down cleaned the pre filter took uot the heater but i did not unplug the heater relay next to the fuel shutdown realy. tried to start again nothing. took off injector no fuel .seems ive lost prime. what is the best way to prime the fuel pump.or has any had this very same thing .thank you!

infidel

225k miles on my 2500.
3500 has 278k miles on the OEM

esgdakota

lol! here is a how Bill does it. it works great!
https://www.dieseltruckresource.com/...rize+fuel+tank