General Whining noise in 3rd and 4th gear

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General Whining noise in 3rd and 4th gear

Dlloyd15

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Just bought a 59 plate Bravo T-Jet and have since noticed a whining noise while driving in 3rd and 4th gear. Has anyone else had this problem and does anyone know the cause and possible solutions. Got a feeling the bearings need replacing but not 100% sure without getting it looked at.
 
Hello. Firstly, welcome to the forum.

It's possible your gearbox bearings are shot. Your Bravo (along with most other T-Jets) is fitted with the infamous Getrag M32 6-speed unit and has caused no-end of headache for sufferers of the problem. A load of Vauxhall models are also fitted with this box so there's complaints amongst their communities too.

This has been covered extensively already, so I recommend you do a search on this forum for simply the term "M32" and double check your symptoms match up with your search results. I had issues recently with my M32 gearbox but it caused whining in gear 6. If I recall correctly, gears 3 and 4 are on a different shaft.

Don't worry, if the bearings are the cause, they can be replaced relatively easily by a transmission specialist and it shouldn't cost more than £400 or so.
 
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Our 10 plate 120 Tjet Bravo on 47k miles also has whining in 3rd and 4th, and has done since I bought it 6k miles ago. Hasn't got any worse over time, and I'm not too bothered by it. If it's the same as my noise, it's not the normal M32 noise - this is usually a high pitch tune in 6th and quieter in 5th (my old Punto had it). The specialist who fixed that for me (Warren of WG Motorworks) said problems with 3rd and 4th are extremely rare (<1% of cases).
 
I'm not one for ignoring things. If something is making a noise that isn't considered to be normal, it won't get better on its own and will probably end up getting worse or even causing further damage. I'd recommend on getting it checked out sooner rather than later.

I'd suspect the whining in gear 3/4 would be lower pitched because of the lower rotational velocity of this shaft. It doesn't rule out bearing failure.

If in the event it is a bearing issue, leaving it unattended results in the bearing failing completely and ruining the gearbox casing.
 
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