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Strange noise at 1000 RPM


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zheli
New User

Jun 20, 2013, 3:02 AM

Post #1 of 3 (1391 views)
Strange noise at 1000 RPM Sign In

Hi guys!

I just replaced the muffler and resonator on my old volvo. The car is much quieter now but there is a strange noise when engine runs around 1000 rpm (at any gear). It is louder inside the car than outside. Here are some videos shooting at different parts of the exhaust system and I cannot notice any significant vibration: https://www.youtube.com/...MC0pALOwfXL7u9hQY6Xp Could anyone tell me where else I should look at? Thanks!!


(This post was edited by zheli on Jun 20, 2013, 3:03 AM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 20, 2013, 3:07 AM

Post #2 of 3 (1384 views)
Re: Strange noise at 1000 RPM Sign In

Look for any point where the exhaust system is touching the frame or body without rubber insulation.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



zheli
New User

Jun 20, 2013, 3:31 AM

Post #3 of 3 (1367 views)
Re: Strange noise at 1000 RPM Sign In

Thanks! I will have a look! The car is a 88' 745 volvo (same exhaust used on 740). Both the resonator and muffler are hung under the car with rubber hangers. But I can think of one place that may touch the car frame (the connecting pipe between them).






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