Rattle when starting and acceleration and weird little wire?

2015 MAZDA 6

60,000 MILES • 1.3L • 4 CYL • 2WD • AUTOMATIC

MATTSER

MEMBER
2 POSTS
FOLLOW

I get a rattle when starting and acceleration that becomes less frequent after about 5 minutes. My local mechanic says it's metal shavings in the catalytic converter. But I have found a few of these 1.25" twisted double-end insulated copper wire things in my garage and driveway. Any ideas what they are and where they come from?

Image (Click to enlarge)

Feb 25, 2024 at 6:42 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

MATTSER

MEMBER
2 POSTS

With the wire.

Images (Click to enlarge)

Feb 25, 2024 at 6:45 AM

JACOBANDNICKOLAS

CAR REPAIR CONTRIBUTOR
110,190 POSTS

Hi,

Are you sure they are from your vehicle? I've never seen those on one before. As far as the rattle, it could be the internal part of the converter that has come loose. That can cause the rattle or even a heat shield.

Is it possible for you to record the noise and upload it for me to hear?

Let me know.

Joe

Feb 25, 2024 at 7:17 PM