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Eduardo

Member Since: 28 Aug 2008
Location: RegiÃ³n Metropolitana
Posts: 2109

2007 Defender 110 Puma 2.4 SW Stornoway Grey

Water condensation

Hi guys!

For the records and may be can help someone.

A week ago our Defender start to be difficult to drive when cold. Start OK, but when you demand a little bit more (i.e changes gear), no acceleration with coughs and the RPMs goes down. After shut down and start again the car recover its power. No MIL or DTC codes in the process.

The issue was repeated 2-3 times every morning and was neccesary to accelerate the engine to do not going down. When the motor start to warm-up the problem didssapears completely.

Well, thinking in the worst case, the Indy put the car in the computer waiting to have problems in the VCV or other associated componets. But for his surprise, the computer not shown any failures in the components.

Finally he whent to the fuel line starting with the fuel filter... The culprit appears to be water inside the diesel (bad quality diesel after the rains that leaks in the pump station tanks) that condensate during the nigth and produce the behavior. When the motor warms up the condensation dissapears and the motor were working OK.

Today, after cleaning all the water and change the filter, Voilá! The Defender working properly at the first time

Reccomendation: take out the water from the filter every week and no every month.

Cheers Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

16th May 2016 5:19pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17207

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

If your Defender is an '07, have you modified the tank breather? On the early Pumas the breather was located behind the rear nearside wheel and it will lead to ingress of water into the tank, and ultimately the dreaded "Diesel bug".

If you have had water contamination in the fuel, expect VCV problems in the near future. Water tends to kill VCVs in most cases, unfortunately.

16th May 2016 7:36pm

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