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 Post subject: Fuel Pump near the filter
PostPosted: Sat Oct 13, 2012 6:47 pm 
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Joined: Tue Oct 09, 2012 4:10 pm
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(sorry for my lack of terminology) The part above the fuel filter, that has the bleeder and primer, its making a nasty noise when you turn the key on (before and after starting the motor itself) Id describe it as a fan like noise. The motor runs drives fine, just making that noise. Tried to bleed it nothing came out.

I ordered a whole new unit but just wondering if anyone had input. Thanks!


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 Post subject: Re: Fuel Pump near the filter
PostPosted: Sun Oct 14, 2012 8:44 am 
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Howdy Turbo - Welcome to LOST

might want to start with the Noob guide
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207
lots of good information and links in there.

generally that part that the filter attaches to - is called a Fuel head (although a couple of older Diesel folks have said Fuel Manager)
the new unit fixes a significant problem - so it's a good idea (and comes with a new filter)

The only moving parts on that are the manual pump and vent valve - so in order for it to be making a noise - you'd have to have a huge air leak (the entire fuel system is a vacuum - from engine to tank) and I doubt that it would run.

I suspect the source of a 'fan like noise' is the other side of the engine - specifically the turbo hoses.
if you haven't put in a Provent or EHM (Noob guide) then the interior of your turbo hoses are coated with oil and they will fail - occasionally with a pop, sometime with a slow split starting at the bottom - generates a air whistle - still runs - but less and less power as the leak gets bigger.

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 Post subject: Re: Fuel Pump near the filter
PostPosted: Sun Oct 14, 2012 10:55 am 
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Update: Seems to be in the liberty diesel throttle control valve body


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 Post subject: Re: Fuel Pump near the filter
PostPosted: Sun Oct 14, 2012 11:15 am 
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Commonly referred to as the FCV (PN 5142799AA) which has an internal plastic gear that tends to strip out which is probably your noise. I know you can remove the butterfly with no harm but what I don't know is if you can open the unit up and remove the gear. If others say that's ok then I'd do so.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs


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