Recently, I've been hearing a soft ticking noise from the engine compartment when I accelerate in 3rd gear (manual 96 Impreza). It gets louder the more I accelerate. Doesn't do it on any other gear.

 

Any ideas?

 

Thx.

Recently, I've been hearing a soft ticking noise from the engine compartment when I accelerate in 3rd gear (manual 96 Impreza). It gets louder the more I accelerate. Doesn't do it on any other gear.

 

Any ideas?

 

Thx.

this sounds like a exhaust leak at maybe at the man. flange.

this sounds like a exhaust leak at maybe at the man. flange.

 

Hi Ed,

 

Thx for answering.

 

You're probably right because if I accelerate lightly, I don't hear it. However I don't understand why it does that only in 3rd gear.

 

Update: The noise reminds me of the sound a computer hard drive produces when it's working, but louder of course.

could be a heat sheild too. Its complicated why it only does it at sometimes vs others.

 

 

nipper

Hi Ed,

 

Thx for answering.

 

You're probably right because if I accelerate lightly, I don't hear it. However I don't understand why it does that only in 3rd gear.

 

Update: The noise reminds me of the sound a computer hard drive produces when it's working, but louder of course.

from what you are saying about the hard drive,maybe this is "spark knock",next time you are low on fuel try preimium,just 5-8 dollars worth till you see if that helps. most small exhaust leaks make themself known when the engine is lugging.

from what you are saying about the hard drive,maybe this is "spark knock",next time you are low on fuel try preimium,just 5-8 dollars worth till you see if that helps. most small exhaust leaks make themself known when the engine is lugging.

 

I don't think it's knocking. Because it would do it mostly when climbing hills and not just in 3rd, which is not the case.