The second step to take in case of whining noise from the transmission is to check the filter on an automatic transmission. The transmission filter is located inside the crankcase. Drain the transmission fluid with a sizable wrench. After that, unbolt the crankcase. Once the crankcase is out, check if there are metal shavings. Automatic transmission noises can be minor or serious; it really depends on where it's coming from. Automatic transmission noises are often very different than engine noises. They're usually constant, either a whine or growl during transmission operation. Sometimes you get the occasional tick or thump as well. 2006 AC V6 4x4 SR5. Mostly stock work truck mods. I've got a 2006 V6 4x4 with the manual transmission, I've been getting a grinding noise around approximately 2000 rpm when driving (plus minus maybe 100 rpm on either side). Seems to happen regardless of gear I am in and on both up and down shifts. Has not effected drivability, clutch still HeroOfTheDay on Jul/19/09 said: It probably only makes the noise in 4th or 5th gear because of the increased speed. I can't say this is true in my case. Even when I do slow speeds in 4th or 5th with my foot slightly on the gas, I get this whine noise. Quote: drcheap on Jul/19/09 If you dive in 4th or 5th gear at low speeds, like 1500-2000rpm Workshop manual. Step 1: Ruling out engine noise. If the car doesn't make the noise when it is not in gear, chances are it isn't an engine noise. Race the engine gently with the car in Neutral and listen carefully for any signs of the offensive noise that are associated with the engine speed. With a few exceptions, a noise that occurs when This problem is usually caused by improper or low transmission fuel levels. Noise hear in one particular gear. Usually means that there's damage to that gear. Noise heard in forward gears, but not reverse or neutral. Usually means a problem with the counter shaft. Noises heard whenever the clutch is engaged or disengaged. Regarding a noisy transmission, the trouble could range from a lack or loss of transmission fluid; the incorrect fluid type was inserted into your transmission, gears or bearings have worn down, or there are damaged gear teeth. If you suspect your vehicle's transmission isn't performing properly, or if you have questions about preventative