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Old 31st August 2015, 08:48 PM
Mechcanico Lee Mechcanico Lee is offline
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Join Date: Jul 2015
Location: St Helens Haydock
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Quote:
Originally Posted by matt View Post
When you say rattle on cold for how long.

I only ask as my 4.2 petrol 06 d3 has just started rattling for about 3 secs when its not been run for a few hours.

Only had it a few weeks, Seems like i Have a few issues under the hood that have just developed. have to top up water every 3 days. The guy must have had a good way of disguising faults as they didnt do it for the first few weeks lol.

Gonna trawl some threads and see if i can diagnose


Very often the rattle from cold for a few seconds is a stretched timing chain , the hydraulic tensioner has to wait for the oil pressure to fully extend it , the 3 second rattle is the time it takes to build the oil pressure .
Also check that it has a genuine or at least a good quality oil filter , if it's a spin on filter they have a one way membrane on the filter inlet , this is there to hold oil pressure in the oil filter to help with the no oil pressure from start scenario .
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