Hi, My lovely, reliable 2004 Accord 2.2 ICTDI has just been through service and MOT a couple of weeks ago at 116k miles. The service included oil change plus fuel, air and cabin filters. I used fully synthetic Shell Helix Ultra ECT C2/C3 0W-30 oil for the change. Also had the MTF changed using Honda MTF3 as it's not been done in the 8 years I've had my Accord. Car sailed through MOT again. In the two weeks since the service, I've noticed an erratic noise coming from the engine at tick over. The cars runs as normal and drives fine. The noise is definitely coming from the left end of the engine (when looking at it with the bonnet up) and is quite loud compared to normal tick over. I thought it could be the PAS pump or water pump failing. Taking the serpentine belt off, there's no issue with the pumps or alternator bearings (that I can feel) and the noise is still present if engine is started without the belt on. I fear it's a timing chain issue (as described in other threads) but could a change to the Shell 0w-30 oil have had any effect as it does seem a co-incidence that it's recently started with the noise? I think that on previous services the garage used 5w-30 oil but I provided the 0w-30 this time. I was considering a quick change over to Castrol 0w-30 or even 5w-30 just in case as a test (cheaper than a full engine strip) but not sure if this would just mask the problem. Is there any simple way to check the timing chain for issues? My local Honda dealer said that the only way to find the fault is to strip everything down at their normal hourly rate. Apart from actually funding a timing change repair at main dealer labour rates, I'd need to consider whether it would be really worthwhile based on the age and value of my car. Other than main dealer, could anyone recommend somewhere in the Hull area that could repalce the timing chain? I appreciate it's likely to be a complicated and expensive job! Thanks, Steve.