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andybeech93

Bass sound to engine ?

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Hi I have a Ford Focus 2003 1.8 tddi estate recently noticed it has a very bassy sound under 2k revs. Does anyone know why it would be doing this is something possibly clogged? Does it have a dpf or cat at that age as im not sure 🤔 it does tend to rev up sometimes and no go any quicker but think this might be clutch or turbo issue.

thanks 

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It has a cat.  The 1.8 TDDI never had a DPF.  It sounds like you've got an air leak somewhere, possibly in the intake piping but I'd suspect the exhaust tbh.

Revving without an increase in engine speed is a slipping clutch, unlikely to cause a bassy noise.

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4 hours ago, TomsFocus said:

It has a cat.  The 1.8 TDDI never had a DPF.  It sounds like you've got an air leak somewhere, possibly in the intake piping but I'd suspect the exhaust tbh.

Revving without an increase in engine speed is a slipping clutch, unlikely to cause a bassy noise.

Hi thanks for reply and ok thanks for the information, i had a look at work and seen the cat was near the back of the engine. What’s the best way to unblock it or test it is blocked or can I remove the cat.

ill have a look at my pipes and the inlet again see if can spot any split pipes as had some last time which caused issues.

yea suspect it was when my mate changed it before when he had it and didn’t ether align it properly or didn’t replace the thrust bearing causing more issues.

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