Ford Mondeo Estate - intermittent chatter / rattle when accelerating - flowerloverman

Hi , i wonder if someone could assist or if anyone has had this before , i own a 2006 ford mondeo estate 1.8 duratec , so a month or so ago , i had my window down and whilst i was accelerating , there was like a chatter rattle noise coming from the driver side engine area , it doesnt happen when slowing down and there doesnt appear to be any noise of a rattle kind on idle , just the usual gentle tapping noises , i recently had the aux belt replaced and the mechanic checked all the pulleys on that side , so im at a loss at the min , it doesnt affect the car in any way , still starts and drives , just interested to find out what the noise is , can it be causing any damage and what the severity of the source is , thanks in advance

Ford Mondeo Estate - intermittent chatter / rattle when accelerating - SLO76
Timing chain?
Ford Mondeo Estate - intermittent chatter / rattle when accelerating - flowerloverman

Hi SLO76 . thanks for your reply , i was kind of hoping that the timing chain wouldnt come up , but if it is i have found a kit for 200 quid , how many hours is to replace do you think , just so i`m able to calculate the labour costs , according to autodata it is 3.5 hours to replace the chain and all the components but i feel that this is a little too ambitious , anything else it could be do you think , failing that i could do it myself , thanks in advance , simon

Ford Mondeo Estate - intermittent chatter / rattle when accelerating - SLO76
It's the most likely cause but I've no idea how long it would take or how difficult it would be to do yourself - I just sell em, I don't fix em. Get a few quotes from local garages and I'd ask them to have a listen to it first to see if I'm right. This is a Mazda motor and it's not common for them to suffer chain issues unless it's not had regular oil changes or it's been to the moon and back.
Ford Mondeo Estate - intermittent chatter / rattle when accelerating - elekie&a/c doctor

Unless it has done warp factor mileage,I would think it unlikely to be the chain. What these engines do suffer with ,is intake manifold runner flap failure,which produces a rattle from the top of the engine.