Gearbox makes whining noise

syncros ..worn
chipped teeth in cogs
worn bearings

two ways out
repair current gearbox or.... fit used gearbox

check your gearbox fluid level may need topped up.

this would be an internal bearing inside the gearbox on the input shaft......you have the shft coming in form the engine, and the input shaft houses 1,2, 3rd and 4th gears.....the 5th gear is located on an intermediate shaft.....and then you have the output shaft...now if you had said all gears i would have said output shaft bearing......and if you had said 5th gear only, then this would be the intermedaite gear.....

but you are only saying 1,2 and 3......why its not happening in fourth is that the gear ratios that the shafts turn in correlation to thre gearing changes as you get to 4, like on a 10 speed bicycle but in 4th it is a 1:1 ratio, so no excessive loads on the shafts are noticeable....

This will require a transmission overhaul......

COULD BE BEARINGS OR A BAD GEAR

This would be most likely the first noise of a wearing input shaft bearing. It will only get louder, and eventual failure of the bearing will probably mean catastrophic gearbox failure. It stops when you put your foot on the clutch because the gearbox stops spinning then, and it is quiet in 4th and 5th because there is no side loading (as there is in 1st, 2nd, and 3rd) on the failing bearing. It wouldn't matter what sort of car it was, the gearbox should be overhauled as soon as possible.

No good news on this one I think
Your whining sound problem is the Layshaft bearings in the gearbox are badly worn. It also seems that the baulk rings are damaged on 5th gear.
John

being a renault, the n/s drive shaft holds the oil in box, it splits, replace then try oil some times they do thousands of miles others not, 5th gear over hears and braeks teeth off, then very noisey. if getting a box there is a tag on top, silver, near the diff, this has to be matched to other gearbox as so many different boxes.

My S-Type gearbox has given up the ghost. First there was a delay when setting off before car would move, then a whining noise started in gearbox and today in tries to stay in 2nd gear if I put my foot down there is no transmission. Then the gearbox fault light came on. Is it worth repairng and if not what will an new gearbox cost including fitting. I have sourced a secondhand box so how much time is needed to do a swap? thanks

Hi

If the clutch feels ok and isn't biting right at the bottom or right at the top then it sounds like its time for a recon or 2nd hand gearbox to be fitted.

I recently fitted a 2nd gearbox to a seat ibiza GTi which actually has the 2.0 Golf engine fitted to it and it wasn't too bad at all, but it is adviseable to fit a clutch kit whilst the box is off.

Very best regards

Geordie