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Discussion Starter · #1 ·
Hi guys,

My 10 Astra H 1.4 Active had a blow in the exhaust when I bought it. Was meant to take it back to the guy who's a mechanic but he passed on sadly.

Anyway, the blow seems to be getting louder as expected but when I lift off the accelerator (and sometimes knock it into neutral) it makes a pop and a bang. Any ideas of it IS just a blow or could it be the manifold?

I have googled it, it doesn't answer my question.

Thanks in advance.
 

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Astra j estate sri
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manifold is including cat....hardly to blowing from there, most likely blowing from down pipe, flexi pipe, middle box or back box...

i had driven 2 astra h exhaust blowing same place from flexi pipe on both astra h

hard to know where is blowing from...
 

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Discussion Starter · #3 ·
I had a 2004 (54) Astra 1.8 design before which had a blow at the front pipe. What is it with me and blowing exhausts? Ha! Let's hope it isn't the manifold. Hard to find an open garage with this COVID lockdown.
 
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