Carl51 Posted August 19, 2017 Share Posted August 19, 2017 I have just bought a 2005 Subaru Outback 2.5 LPG with Auto transmission, have never had one before. Just wanted to run something by everybody. I have noticed a knocking when I first start the engine, it also continues when on tick over. Does anyone know what this could possibly be. Apart from this the car runs really sweet, gearbox is as smooth as silk. Any advice would be appreciated. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted August 19, 2017 Share Posted August 19, 2017 By nock do you mean from in the engine itself or something like a mount? If it's engine nock at low revs could be crank bearings, just depends. Quote Link to comment Share on other sites More sharing options...
Sandals Posted August 20, 2017 Share Posted August 20, 2017 Does the knock go away once the engine is fully up to temp? Quote Link to comment Share on other sites More sharing options...
Carl51 Posted August 20, 2017 Author Share Posted August 20, 2017 Thanks for your replies. Tidgy it sounds like from the engine itself and it is there all the time. Sandals the knock is there even when the engine is up to temperature. When I first start it there is a slight knock and then after a few seconds that goes away which i am LED to believe is normal and then when the engine warms up you get this other noise which I can only describe as a solid knock. Because it is a solid noise it sounds to me like the bottom of the engine but never had a Subaru before so I'm not sure. Only had this car since 3rd August and thinking of getting the AA to check it out. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted August 20, 2017 Share Posted August 20, 2017 Yeah get it checked out, but from what you describe doesnt sound good. Did you buy it private or from a garage? Quote Link to comment Share on other sites More sharing options...
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