1995 Mazda 626 Loud Exhaust Buzz

MAZDA 626
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LD2781
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  • 1 POST
Make: Mazda
Model: 626
Year: 1995
Milage: 96,000
Size: 4 Cylinder 5 Speed Manual

There is a loud buzzing sound, alomst as if I have a 3 inch pipe on the exhaust, coming from the front of the car right underneath the engine at all times the car is running. There are no holes in any of the exhaust pipes or muffler so I assume it is a problem with the exhaust manifold or the entry into the head pipe. Any ideas?
May 22, 2007 at 5:20 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
[quote:1c664774ba="LD2781"]Make: Mazda
Model: 626
Year: 1995
Milage: 96,000
Size: 4 Cylinder 5 Speed Manual

There is a loud buzzing sound, alomst as if I have a 3 inch pipe on the exhaust, coming from the front of the car right underneath the engine at all times the car is running. There are no holes in any of the exhaust pipes or muffler so I assume it is a problem with the exhaust manifold or the entry into the head pipe. Any ideas?[/quote:1c664774ba]

Could be the donut on the exhaust manifold end.
May 22, 2007 at 10:23 AM

Suggested Repair

Inspect the exhaust manifold donut gasket where the manifold meets the head pipe, and replace it if it is leaking or damaged.

Conversation Summary

The owner of a 1995 Mazda 626 reports a constant loud buzzing exhaust-like noise from under the front of the engine, with no visible holes in the pipes or muffler. The expert suggests the exhaust manifold donut gasket may be the cause.

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