Originally Posted by
ceasefire
Backing my 04 crossfire (85K) down he driveway if I hit the brake there is a loud thump that you can even feel in the front end (I believe). I watched the front with the hood open and found the suspension crossbar bounce about an inch along with the noise. I replaced the crossbar bushings but that didn't solve the problem. The car is a 6 speed. My local car repair installed the bushings for less than $200 (from Needs Wings) and told me that there were additional problems but would not tell me what they were until I paid the $200 diagnostic fee. I though I had it figured out and spent the same amount having the bushings installed. Anybody have any ideas (suspension links, motor mounts, etc). The car has only 85K on it. Thanks for any advice or help. I'm not paying the local shop $200 to tell me what they know.
It could be your flex discs or engine mounts.
Check your flex discs: With the car off reach under and rotate the drive shaft and see if you hear that clunking noise. Also check them for cracks or tears.
Check engine mounts: If you have help, have someone video your engine.
(Don't let the person videoing stand in front of the car in case your foot slips off the brake pedal).
Press your foot on the brake and hold it there. Put the car in drive. With your other foot rev the engine a little bit. Now do the same with the car in reverse. Watch the video and see if the engine moves a lot.
You can also check it with the engine off. The second video shows how near the end of it.
Here are links to a couple of videos: