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Old 06-04-2020, 07:54 PM   #1
ladiesman12369
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Member#: 515338
Join Date: Jun 2020
Default 05 Subaru Legacy gt limited piston slap

I have a 2005 Subaru Legacy GT and I have start up piston slap and whenever I have rev over 3000 to 3500 RPMs the slap sound is there what should I do what can I do to stop the slap
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Old 06-05-2020, 12:06 AM   #2
awfulwaffle
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Member#: 409332
Join Date: Dec 2014
Location: SE MI/SE WI
Vehicle:
2005 LGT
ABP

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If it's actually piston slap, nothing you can really do. Piston slap should go away when the car's warm. If it doesn't, you're probably shopping for a new motor.

Posting a video of the sound would be helpful.
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Old 06-05-2020, 02:37 AM   #3
91 RS RA
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Member#: 457410
Join Date: Oct 2016
Chapter/Region: International
Location: Christchurch, New Zealand
Vehicle:
1991 Legacy RS RA
White

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For a start don't rev it over 3k when cold!

How many miles on the engine? if its only when cold and goes away once warm and as long as theres no excessive blow by in the pistons then just let it warm up first then drive, or drive gently till warm. Piston slap on well worn or old engines is not unusual on these engines
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