6.9 factory inline fuel heater ?

[EMD_DRIVER]

In between the mechanical fuel pump and the fuel filter on my 87 6.9, Is what I assume is the inline fuel heater. Are there any ways of testing this thing, to see if it's actually working?

I figured it would be about like testing a GP with a test light, but wanted to see if there were other options..

Thanks
Gary

 

[tractorman86]

i've never heard of a factory inline, let alone anykind of fuel heater.

 

[EMD_DRIVER]

There's one pictured here:

http://images.dieselpowermag.com/te...rnational_420ci_diesel_engine+fuel_system.jpg

 

[Joe Mc]

When the temp around the truck is 34 degrees or lower turn the truck on but don't start it, after a few seconds you should feel the in-line fuel heater getting warm if it works.

For now just make sure the wire has 12 volts when the key is on.

 

[EMD_DRIVER]

Thanks Joe!

 

[sle2115]

i've never heard of a factory inline, let alone anykind of fuel heater.

Mine had one. I thought all 6.9's did. The 7.3 has it in the filter head and I've since converted mine to that system. Have the old one laying around here somewhere I do believe.