I hate to be one of those one time posters as I frequent 4Runner forums quite often, but I do have a problem that I would greatly appreciate some help with solving.
My mother has a 2005 Pontiac Vibe with a 5spd transmission with 150k miles. Recently she noticed (I did as well upon driving it) that the transmission sounds much "rougher" while it is engaged, i.e. while driving. She doesn't know much about cars and I'm out of town for awhile, so she took it to a local transmission place and was told she would need to replace the whole tranny. I find this hard to believe simply because other than it sounding rough, it runs perfectly fine. No loss of power, no grinding while shifting, no clanking, and no whining. I don't know much about these transmissions, and can't seem to find much on the internet regarding them, so I've turned to you all. Here are the symptoms:
When the transmission is engaged, it is very noticeably louder and sounds rough. The closest sound I can compare it to is when you run general unleaded in a car that is made for premium and you get that rough, almost grating sound. Almost like it is straining more than normal, but like I said there is no loss of power or acceleration. The sound has become progressively worse since she first noticed it.
Lastly, the quote from the mechanic was $2200 for a new tranny, which I find pretty steep, if it even needs an entirely new one. Any thoughts? Thanks for any help!