Features

How to eliminate Td5 fuel leaks - pictures

by: Auto Express team

27 Sep 2017

Safety first – disconnect the negative lead from the battery to power down the electrical systems before opening fuel lines.
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Three wheels are chocked and the rear right corner is supported on an axle stand, after being raised with the trolley jack. Gear and handbrake engaged.
Often the green banded (top) HP fuel line from the tank to the fuel filter housing is the problem, but this had been replaced.
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The next area to check was the fuel filter and its water drain, inside the right hand rear wheel arch, usually with a steel cover fitted.
Stains, but no leaks at the filter to housing seal but, more significantly, from the top of the fuel housing through the metal casting.
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The filter-to-housing joint, and this lower water trap, seemed to be leak free, though the grime suggested the filter was quite old.
After thorough cleaning, the four fuel line bayonet connectors were detached from the fuel filter housing.
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The new fuel filter housing is supplied with a fresh fuel filter and water trap. You will need your VIN when ordering, as there are two variants.
New stub pipes also come with the fuel housing kit, as well as new copper crush washers, so no need to salvage the old fittings.
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With the housing bolted to the chassis, and pipes and sensor leads reconnected, the Discovery fuel system is leak free once again – job done.

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