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12-14-2020, 09:30 PM | #1 |
Scooby Newbie
Member#: 513284
Join Date: Apr 2020
Location: Draper Utah
Vehicle:2008 N/A 5mt outback 2 tone brown and gold |
2008 outback sohc ej253// super loud engine knock at idle speed
I have a 2008 outback that just had the clutch replaced. I bought the car used but I can tell that it has had some head work because it has a new head and head gasket on the passenger side.
My issue is that just suddenly there started to be a subtle engine knocking noise that was only present near idle speeds. Once you rev the engine past 1500 rpm the sound completely disappeared. The thing is, that only after a few more days the knock got SIGNIFICANTLY louder. The decibel level level probably near that of the horn. I am looking on forums everywhere and can’t find any explanation for this knock. Any ideas guys? Ps I will submit a video once I figure out how to post it.
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12-15-2020, 12:31 PM | #2 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
timing belt tensioner or bearings. check for glitter in the oil, or remove the timing belt cover and watch the tensioner as the engine runs.
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03-10-2021, 11:46 AM | #3 |
Scooby Newbie
Member#: 513284
Join Date: Apr 2020
Location: Draper Utah
Vehicle:2008 N/A 5mt outback 2 tone brown and gold |
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03-10-2021, 01:57 PM | #4 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
That beats the hell out of replacing bearings.
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03-21-2021, 09:26 PM | #5 |
Scooby Newbie
Member#: 523170
Join Date: Mar 2021
Location: CT
Vehicle:2006 Forester White |
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03-21-2021, 11:27 PM | #6 | |
Scooby Specialist
Member#: 459287
Join Date: Dec 2016
Chapter/Region:
VIC
Location: Vancouver BC Canada
Vehicle:1998 JDM Impreza STi V4 GF8 White |
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