Our 1998 Subaru Forrester has a scary thumping in the accelerator when the engine is under a load. The greater the load (e.g., going up a steep hill), the greater the thumping. It is not noticeable when idling or coasting. The local mechanic (Pep Boys) ran an engine diagnosis and declared nothing wrong. Any suggestions are appreciated!
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| 2002 Ford F150 | 2 | 409 | August 13, 2009 | |
| Jackhammer/thumping noise when accelerating at high speeds | 5 | 20156 | January 6, 2010 | |
| Jerks when I accelerate | 6 | 683 | February 21, 2010 | |
| Uphill acceleration issue | 4 | 562 | June 30, 2013 | |
| Sputtering | 1 | 402 | March 10, 2010 |