I have a 1990 GMC Suburban 4X4 that makes a very loud rattling noise when running. The noise appears to generate from the muffler. However, the catalytic converter is near the muffler and I cannot tell exactly where the noise is comming from. Aside from the rattle, the severity of the noise is compared to when a car does not have a muffler. I got under the car and checked the muffler and catalytic converter for loose parts inside, but was unable to locate the source. Any advice will be appreciated.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| '88 GMC suburban | 1 | 379 | June 2, 2011 | |
| 97 GMC Suburban K1500 4x4 5.7l high speed vibration/shaking/wobbling | 9 | 4302 | June 15, 2022 | |
| Suburban Issues | 5 | 669 | August 4, 2008 | |
| 99 suburban noise | 2 | 320 | January 6, 2008 | |
| Catalytic converter? or something else? | 38 | 17347 | March 12, 2014 |