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proper wiring for new fuel filter head?
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Author:  Jangles [ Mon Dec 28, 2009 11:13 pm ]
Post subject:  proper wiring for new fuel filter head?
My deader is unable to tell me the proper splicing for the new fuel filter head they sold me? Really? The new wiring harness pigtail for the heater hookup needs the two wires spliced. Can someone tell me the proper wiring? Thanks
In found discussion on this but no directions
Author:  ATXKJ [ Mon Dec 28, 2009 11:30 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
it's 12 volts - one's hot - one's ground
if the color's not obvious - a multimeter will be.

It may not even matter - it's a heater
unless there's a diode somewhere it'll work either way.
Author:  adrianmiura [ Sat Jan 02, 2010 7:52 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
On my heater wires they were colored red and black.
Red = +
Black = -
The 68043086AA wiring kit I picked up from the dealer had no red or black wires there were two greenish and two purple wires. The green were 12’s and the purple were 16’s. the factory heater wires were 14’s go figure. I ended up using the 12’s there should be less resistance.
Also make sure you solder your wires and do not use crimp connectors as your main fastener.

Adrian
Author:  stoutdog [ Sun Jan 03, 2010 11:56 am ]
Post subject:  Re: proper wiring for new fuel filter head?
We just wired one of our CRDs up today. You use one green and one purple, matching them up by size with the factory wires. It should be fairly obvious which is which.

We used marine grade crimp and shrink tubing... Don't see any reason why not.
Author:  Jangles [ Sun Jan 03, 2010 11:35 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
Yeah but my kit came with the wires not even in the connection, need to know what side is + on the heater
Author:  stoutdog [ Mon Jan 04, 2010 7:22 am ]
Post subject:  Re: proper wiring for new fuel filter head?
Jangles wrote:
Yeah but my kit came with the wires not even in the connection, need to know what side is + on the heater

Yea, mine was the same way. I forget what it is offhand... Match the new plug up with the old plug, so that the latch is facing down, and that should indicate which side the fat wire goes into.
Author:  flman [ Fri Jan 29, 2010 7:45 am ]
Post subject:  Re: proper wiring for new fuel filter head?
Are all of you keeping the heater plugged in at all? I have the new filter head, but I left the heater unplugged.
Author:  ATXKJ [ Fri Jan 29, 2010 9:01 am ]
Post subject:  Re: proper wiring for new fuel filter head?
The main point for unplugging it was the leak on the old style head
the new style head fixes it
if your fuel coming into the engine is too cold it doesn't run as well
(not much of an issue in Texas)
Author:  flman [ Fri Jan 29, 2010 12:00 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
ATXKJ wrote:
The main point for unplugging it was the leak on the old style head
the new style head fixes it
if your fuel coming into the engine is too cold it doesn't run as well
(not much of an issue in Texas)


So far, I have had no issues with fuel temp, my Jeeps are in a garage, so that helps the fuel alot, I guess if they sat in the cold all night, it would be a different situation. I would hate to see that new connector burn one of the Jeeps up. So, it will be unplugged until the day I really need it.
Author:  stoutdog [ Fri Jan 29, 2010 12:21 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
flman wrote:
ATXKJ wrote:
The main point for unplugging it was the leak on the old style head
the new style head fixes it
if your fuel coming into the engine is too cold it doesn't run as well
(not much of an issue in Texas)


So far, I have had no issues with fuel temp, my Jeeps are in a garage, so that helps the fuel alot, I guess if they sat in the cold all night, it would be a different situation. I would hate to see that new connector burn one of the Jeeps up. So, it will be unplugged until the day I really need it.

The new connector won't hurt anything... that was the whole point of installing it. You can leave it plugged in, like intended, without any worries.
Author:  Jangles [ Fri Jan 29, 2010 3:10 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
Thanks I am all hooked up now and I think the jeep is liking it in the frigid northern Wisconsin.
Author:  BVCRD [ Wed Mar 03, 2010 12:11 pm ]
Post subject:  Re: proper wiring for new fuel filter head?
Does anyone have a pictorial of this procedure for us dummies?
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