mcorriga
Member Since: 28 Nov 2010
Location: Flackwell Heath
Posts: 50
  
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| Smoke coming from the left-hand EGR cooler area |
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Hi - I would be grateful for some advice before I take the plunge and get the spanners out 
My 2009 3.0 litre TD6 Disco4 has developed a smoking problem which appears once the engine has got fully up to operating temperature and the EGR valve has closed. The first sign is a burning smell in the cabin. Once I stop the engine and pop the bonnet, I can see wisps of smoke coming from the area near the left-hand EGR cooler and there is a strong smell of burning. After a minute or so, I can see the by-pass valve vacuum actuator operate (presumably re-opening the by-pass valve).
A week before this started happening, I noticed that the cabin heater wasn't as warm as usual. I started trying to diagnose a cooling problem. In so doing I stupidly  managed to create a leak by not sufficiently tightening one of the plastic bleed screws but once this was fixed I haven't lost any significant quantity of coolant but I've still got lukewarm air coming from the cabin heater.
From the workshop manual, I can see that the hot coolant passes through the EGR coolers before it gets to the heater matrix so I am assuming the EGR cooler is the culprit.
Does my logic sound right? Anyone else got any similar experiences? Unless anyone suggests a better solution, I'm planning to extract the EGR cooler and inspect it for damage. Disco 4 SE Tech (2015) Corris Grey
Renault Clio 1.2 16v (2006)
BMW R100RS (1981)
Yamaha XT500 (1977)
Triumph TR6 (1974)
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 9th Jan 2016 5:28 pm |
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