'00 Altima 5sp
Join Date: Jan 2010
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With regards to the motor mounts, they're probably gone if it clunks or slams when it shifts up/down, if you hammer the gas, or if you're accelerating hard and it shifts during that. Personally, I never noticed any unusual slugglishness (my old car was slow as shit anyways).
On my last car (86 deville fwd) I was having similar problems, so I took it to a tranny shop. The mechanic took it around the block, and checked the engine under load (at a stop, hold the brake, and give it some gas, not enough to do a brake stand or anything bad). He said it was probably the mounts, so he took in the shop and put it on a lift, and showed me that the two front mounts were completely seperated. It ended up cost me close to 500$ to have them replaced, but that was due to the age of the car, the fact that it was a Cadillac (mounts were roughly 50-60 bucks each), and because they weren't sure which mounts they needed, so labour for trial and error. Should be cheaper on a newer and more common vehicle, like 80% of the cars made in the last decade.
One thing I did notice when I had the mount problem, and I've heard other people say as well, is that you can see the engine moving if the mount(s) are bust. Pop the hood, and get a buddy to watch the engine while you put it under load. You can kind of see the hood moving when your driving as well, but I'd advise watching the road ahead when you're rolling.
And I'd shop around before you take your car to a dealer (unless it's under warranty).
Last edited by Bauglir; 01-22-2010 at 02:17 AM.