I have a 2009 Mustang gtcs which we just rebuilt the transmission in a 5r55s, now I'm experiencing a whine and slight vibration, the mechanic was not reliable and let the car fall off jack stands? Do you have any suggestions or ideas

SOURCE: i changed my transmission fluid on my 1999 mustang tried to start key wont even turn

Changing the fluid would not cause this issue your describing. try turning the steering wheel hard to the left or right to unlock the ignition.

SOURCE: front end whinning noise

USualy it is one or both of the front wheel bearings that have gone bad, while yo have the vehicle on a jack stand with the engine off and making sure that the wheels are set straight, hold the tire on top and bottom and try to move it if there is any movement felt you have bad wheel bearings.

SOURCE: no reverse after rebuild on 4L60E Transmission from 1995 GMC Sono

There isn't a modulator on this trans as it is electronic

You can have first gear going forwrd but no reverse. It is possible. The low/ reverse clutch isn't needed to go forward.

Harvey N Tawatao

• 3854 Answers
• Posted on Jul 01, 2009

SOURCE: 2001 Dodge Neon making whining noise and vibrating car

It could be the CV joint and if that's the case. have that replaced there, don't want her to break down on the way home. Have her drive in an empty parking lot slow with the windows down and ask her to make sharp turns to the left then the right. If she can hear and feel anything that may seam broken then it's going to be a bad CV Joint. Ask her when she is driving and and the vibration starts does turning to the right make it worst and have her apply the brakes lightly and if the vibration or noise change. if it does then the wheel bearing is bad and she should make it home. just don't have her drive like me running from the EX. Last and the easy thing to check is the tire, it could have a broken belt know as tire belt separation and can be driver home as long as she does not drive like me as i mentioned above. Good luck and hope this helps friend. 

SOURCE: a whining sound up near

It could be a wheel bearing fixing to go out. I would have a professional take a "listen" to it. Wheel bearings are quite common problems on most GM front wheel drive vehicles. They will cause the "whining" sound you are describing. You have to change the entire hub and bearing assembly if this is the problem. Labor is not too bad (about 1 hour) but the price of the hub assembly can range from $150 to $350 depending on which brand you use and who you buy it from.