Alan cawley Posted October 10, 2018 Share Posted October 10, 2018 Hi Guys. trying to identify the grey cap on this photo. got a water leak behind it, thank you. ford fiesta 2006 mk6 1.4 diesel Quote Link to comment Share on other sites More sharing options...
iantt Posted October 10, 2018 Share Posted October 10, 2018 thats the brake vacuum pump. the leak should be below that pump. coolant normally leaks from the thermostat housing just below it. Quote Link to comment Share on other sites More sharing options...
iantt Posted October 10, 2018 Share Posted October 10, 2018 https://www.ebay.co.uk/itm/FOR-FORD-FIESTA-MK5-MK6-1-4-TDCi-2001-COOLING-COOLANT-THERMOSTAT-HOUSING-SENSOR/171328479636?hash=item27e3f92194:g:vGYAAMXQtUxTcgaI Quote Link to comment Share on other sites More sharing options...
isetta Posted October 10, 2018 Share Posted October 10, 2018 I had a thermostat cover leak on my old fiesta 1.6tdci. I think the problem is that they are plastic so deform more easily than a good old metal one. 1 Quote Link to comment Share on other sites More sharing options...
Alan cawley Posted October 10, 2018 Author Share Posted October 10, 2018 Thank you for all the info, very helpful.cheers Quote Link to comment Share on other sites More sharing options...
GalvinJobs Posted November 14, 2022 Share Posted November 14, 2022 On 10/11/2018 at 1:29 AM, isetta said: I had a thermostat cover leak on my old fiesta 1.6tdci. I think the problem is that they are plastic so deform more easily than a good old metal one. Slope 2 Many thanks for the information; it is very useful. cheers Quote Link to comment Share on other sites More sharing options...
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