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Laurel making strange sounds.

Fastazfuk

By Fastazfuk,
in General Automotive Discussion

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Fastazfuk Apprentice

Fastazfuk

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i have a c34 20e auto laurel that runs and drives well but around 60-70ks a god awful sound starts and doesn’t go away until i slow back down to 50ks.

sounds like a really high pitched squeel. sounds like it’s coming from the dash or the break booster? 
breaks work fine and I disconnected the dash cluster to see if it went away but it did not. Sprayed crc on everything, checked all my belts and pullys for play. Doesnt use fluids so not sure where to look next. Thinking it could be something in the dash sounds alot louder than a sqeeky belt and closer but not sure what it could be any ideas?

I have had a similar sound coming from a skyline dash that had a broken rev gauge but not as loud. Its a constant squeal doesn't get louder and is painfully loud 

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https://www.sau.com.au/forums/topic/484342-laurel-making-strange-sounds/
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Shoota_77 Veteran

Shoota_77

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Posted

Could it be an exhaust manifold leak?  They can tend to be quite loud and only at higher revs.  check your exhaust manifold studs to see if any have snapped off or if you can see any sooty stains around the gasket.

Other than that, see if you can record a video of the sound on your phone and post it here so we can hear it.  Very hard to diagnose until we know what it sounds like.

  • 4 weeks later...

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