For weeks I've heard something rocking around in the tank. It's louder when the fuel level is lower. Now my fuel gauge will drift all over the map. It will drop to empty out of the blue and then the next time I turn it on it will read the correct level. Any ideas what this could be or how difficult it would be to repair?

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2005 Black KJ Sport CRD,
GDE Full Torque ECO TUNE, GDE Transmission ECO Tune,
Samco British Racing Green Hoses
Build Date 1/05
200k miles.
Original Owner

sounds like fuel level sending unit came loose. Drop the tank and take a peak. Run it out of fuel first...

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2006 Liberty CRD 275K, JBA 2.5 with Fox Shocks, GDE Turbo Kit, GDE TCM Tune, Suncoast TC, OEM fuel filter housing converted to fit Caterpillar Fuel Filter 1R-0749, OEM themostat housing modified to accept Hemi 203 F thermostat.

I hate it when my posts don't take but ditto given the loose in the tank noise. Check out http://www.auerbach.ca/kj/lift_pump/ for a how to on dropping the tank which can and probably should be done when low but not empty. Also consider installing an in tank pump while you are in there.

FYI as I've posted before erratic fuel level readings (not reaching full, later reaching fuel, inaccurate reading at low fuel levels - just generally cannot depend on gauge) can also be related to a going bad battery as stoutdog and I both know.

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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