Aygo 2011 noisy engine

[Janineh]

My Aygo engine started being really noisy when accelerating about 6 months ago. It's not getting worse and does not make the noise when ticking over. It sounds like tappits to me and someone told me it may need shims which I believe is an expensive job. Car has done 77000 miles. Any ideas please ? 

[fordulike]

I hope this doesn't sound a bit cheeky, but have you checked the engine oil level recently?

[eygo]

if the valve clearances are too large then it would be noisey on idle as well

 

 

[Janineh]

Have checked the oil and keeping it regularly checked and topped up. Was my first thought too. Thank you fordulike.

eygo - thank you that helps in the elimination of what it could be.

[fordulike]

Mmmmmm, if it were the other way round, diesel sounding on tickover, getting less noisy as revs increase, then I would have said fairly normal.

There's virtually zero soundproofing on these cars, so they pick up noises from all over the place. A stone flicking up and hitting the chassis, sounds like a brick has hit it lol.

Have you had someone rev the engine whilst stationary, with you listening with the bonnet open, to pinpoint the sound?

[Ethanedwards]

I'd be looking for stuff that's loose around the exhaust system myself.

[tonyuk123]

I Have a late 2006 Aygo petrol. it has done almost 100K

It was pretty noisy especially at cold start, oil change to fully synthetic helped, but also i was trying to cure a rich to lean problem, changing the injectors (easy 10 minute job) also cured a lot of the tapping too. unfortunately it didn't cure my other problems !

[fordulike]

1 hour ago, tonyuk123 said:

I Have a late 2006 Aygo petrol. it has done almost 100K

It was pretty noisy especially at cold start, oil change to fully synthetic helped, but also i was trying to cure a rich to lean problem, changing the injectors (easy 10 minute job) also cured a lot of the tapping too. unfortunately it didn't cure my other problems !

Have you checked the tolerance of the lamdba sensors?

Edit: Whoops, ignore this, just spotted yer other thread.

[tonyuk123]

How do you check that and how do i know what they should be anyway?

was sold both sensors as 'Aygo' replacements

both had correct connectors as standard (not generic type with just wires)

plus performance/drive got better even though readings for error were pretty much the same