perma-grin

I just purchased a 944 and have discovered a very slight gear wine on the hwy.

The car looks like it has been exceptionally well cared for and is in mint condition
with 200,000 kilometers on it

It occurs only when accelerating or decelerating ... but it is absent when you are coasting in gear. My suspicion is rear end gear noise, but I am not sure

Any thoughts ??

thanks in advance

Chris

MichelleJD

I would change the gear oil ASAP. Not many people think about doing it and the car has a few klicks on it.

IMB951

All 944's I've driven have slight tranny noise during deceleration as well. I wouldn't worry about it unless you can really start to feel it as well as hear it. New tranny fluid might help quiet things down. Redline transmission fluid is a great choice for our cars.

Kevin Baker

Change the gear oil. Use Redline MT-90, you may have a hard time finding it in Canada. I'm guessing that is where you are by the kilometer comment. Good luck

perma-grin

Good guess eh ... I will look for the Redline MT 90 here but if not I am close to Buffalo

Thanks everyone for the insight

Charlotte944

Here's a plan for you:

1. Chock the front wheels and put the rear up on jackstands.
2. Remove the rear wheels and rear brake pads.
3. Remove the CV half shafts.
4. Release the parking brake.
5. Hold the brake caliper away from the brake rotor and spin the hub by hand and listen for any bearing or brake shoe noise.
6. Clean, inspect and repack the CV joints.
7. Change the tranny lube. Note: Loosen the FILL plug first! You do not what to have the drain plug out and the fill plug stuck.
8. With the tranny filled, start the engine and put the tranny in 1st.
9. With the engine at idle, listen for any drive train noise. Test each gear, including reverse.
10. Put everything back together.

I used this process to track down a noisy rear wheel bearing.