Ford Focus II (2004 - 2007) - 05 1.6tdci engine rattle when cold | Technical matters | Back Room Forum

Wed 6 Aug 2008 11:59

05 1.6tdci engine rattle when cold - tommocc

hi i recently bought a high (92k) focus 1.6 tdci have found it quite rattly on start up from cold is this normal?
took it back to dealer and they changed the tensioner for outer belts but its still same runs fine when warm but as soon as its under load when cold it sounds like a bag of spanners
hope you have some ideas
cheers tommo

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Wed 6 Aug 2008 12:27

05 1.6tdci engine rattle when cold - jc2

Most diesels do;timing is advanced to start the engine.

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Wed 6 Aug 2008 12:58

05 1.6tdci engine rattle when cold - RichardW

Modern CR engines are pretty quiet when cold, and the 1.6 Ford / PSA HDi particularly so. Pretty sure there's something wrong with this one. You need someone who can read the live data from the engine ECU to try and find out what though.

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Wed 6 Aug 2008 13:37

05 1.6tdci engine rattle when cold - tommocc

its been on diagnostics not showing any faults it sounds more mechanical as it gets quieter as it gets warmer

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Wed 6 Aug 2008 14:10

05 1.6tdci engine rattle when cold - RichardW

Crankshaft pulley is well known failure on 2.0 HDi that causes similar symptoms. Not many 1.6s have got to enough miles to know if the problem has carried over - but it's worth a look at the pulley.

PS just because there are no fault codes doesn't mean that there are no sensor values that are out of kilter that would only be picked up by an eagle eyed tech reading the live data as the engine warms up....

Edited by RichardW on 06/08/2008 at 14:12

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Wed 6 Aug 2008 23:12

05 1.6tdci engine rattle when cold - MikeTorque

Could be the inside of the engine and injectors are gunked up. Have you tried a couple of tanks full of BP Ultimate to clean the inside and injectors ?

The injectors should produce a fine multi-mist spray as well as additional tiny amounts of fuel to counteract diesel rattle. The additive package in BP Ultimate specifically helps counteract diesel rattle in the 1.6 TDCi as well as keeping the inside of the engine clean, hence the reason it's recommended for this particular engine.

Also an engine oil and filter change would help if one hasn't been done recently.

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Thu 7 Aug 2008 00:42

05 1.6tdci engine rattle when cold - Screwloose

Get an injector leak-off test done and check for compression leakage round the base of the injectors.

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Thu 7 Aug 2008 23:35

05 1.6tdci engine rattle when cold - tommocc

where is the best place to get this done ?

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Fri 8 Aug 2008 12:57

05 1.6tdci engine rattle when cold - Screwloose

A diesel specialists - although a dealer should have the kit.

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