I also have this driveline vibration under acceleration but zero vibration revving the engine warm stationary. 2003 3.2, 79k miles. Figured a new post might get more views than thread jack.
work done to date (last 3 years);
- Gbox gearbox rebuild - 2nd gear/new hardware
- alignment at a porsche indy shop
- TRW track arms/hardware
- TRW endlinks
- Clutch, RMS (no leak, preventative) - DMF “good condition” (indy shop)
- LN IMSS (indy)
- front engine mount
- coil packs/spark plugs
- throttle body cleaning, MAF cleaning
Vibration is only present under accel (most felt 2200-4000 rpm but smooths out/less noticeable approaching redline) and in all gears, what’s the proper way to diagnose the fix? Of these 4 potential culprits:
DMF, lower control arms, axles, transmission mounts - which is more likely to cause these symptoms? Engine revs smooth when stationary after being properly warmed, no vibrations at idle bar a ~25rpm flutter. Engine pulls hard, revs beautifully and power seems very strong. No codes present.
Before I phone an indy/dealer want to see if I could solve it and learn something in the process.
Threaded Mode
