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Manual transmission whine when accelerating brake

Hi I have a 97 chevy c1500 she whines in every gear besides park and neutral and only from 0 to 35 mph then the whine completly stops unless i need to work her up a large hill than the whine Whirring sounds that occur while the car is in motion may indicate transmission bearing noises or driveline noises.

Step 3: Check the fluid. If your car has a manual transmission, checking the fluid can be a big job. The car has to be jacked up and a check plug removed from the side of the transmission. Use some fast acceleration, allowing the transmission to firmly shift. Listen for any rumbling, growling or mechanical metaltoto metal noise in each gear just after it shifts. Such noises indicate problems with the individual planetary gears, input shaft or interior transmission bearings.

Mar 07, 2006  When the transmission is in 5th gear, at speeds between 45 and 75 mph (esp. 6065), I hear a loud whine or whistle that sounds like gear whine.

I only hear the sound at Replied by NATHANSB on topic Manual Transmission noise when giving gas, The shifter movement is mostly in third and fifth gear, more in the third. It's also hard to shift into the fourth gear. Whining Noise A whining noise coming from the transmission area, or specifically from the front of the transmission, is most likely a failing transmission oil pump. A pump makes a whining noise when it is going bad or when it is working extra hard to pump fluid, in which case, you probably have a dirty and clogged transmission filter.

Low Transmission Fluid: For both manual and automatic transmissions, the primary cause for whining when in gear is low transmission fluid. If the fluid is too low, then the internal components of the transmission are not lubricated properly. If the noise is not heard until the vehicle is put in gear, either with an automatic or manual transmission (question 3), the cause of the noise could be internal to the transmission (for manual transmissions) or could be a clutch problem.

Point being that 1st and 2nd gears in a manual transmission usually have straighter cut teeth compared to 3, 4, 5, or whatever on up which have a fair amount of bevel cut into them. The same with reverse gears which are usually straight cut and whine. But accelerating at any speed increases the whine. The pitch of the whine goes higher along with the sound volume of the whine increasing as engine RPMs increase. When a shift point is reached and RPMs drop the loudness and pitch of the whine drop.

It is very important that you use the correct fluid when changing manual transmission fluid. Unlike automatic transmission fluid, which is pretty much universal, manual transmissions are anything but. There are many possible sources of whine alternator, water pump, AC, idlers, clutch, transmission, differential, or wheel bearings.

If you hear the noise when the car is in neutral, stopped, the whine is from the first 4 or 5 items.