Volvo fm12 my fm 12 is jumping out of 3rd and 5th gear is there a easy fix that you no i can do

SOURCE: selespeed gearbox fault

Hi, it might be worth getting your gear selector checked as these have a nylon/plastic ball at the bottom now if this has worn down then when you try selecting a gear it will cause the problem your having.(its under neath the gearstick before it links to the two selector rods so check this.)

Also worth checking alot of cars where the two rods come from the selector and then their is two rods going to the gear box one of these is fixed and cant be adjusted but the other rod can be adjusted and its often the case that this adjustment can take up the play and solve your problem.
The problem with this is that it can be adjusted forwards and backwards it slides when you undo the bolt that goes through it so make sure you can mark exactly where the selector is where you can adjust it so that you can set it back their if it makes it worse or no differance.
If yours can be adjusted then make sure you mark where it is now then just move it a small bit at a time one way and then give it a try if no differance then move it a bit more if it gets worse then put it back where it was originally then try going the other way see if it makes any differance if not then it wont be adjustment problem.
If neither of these are problem then the chances are the gears have stripped and this would give you the problem your having as the faster you go the harder it is for the teeth to locate on the correct gear in the box.

As for stripping the box it isnt really worth doing as the parts would be expensive and would cost as much as a second hand gear box.
The best option would be a reconditioned gear box as you know that it has be rebuilt with any new parts needed and you should also get some warranty on it which is always a bonus.

Are you sure the clutch is ok test this by having the car running and at a standstill with the hand brake on put car into 2nd gear and with the handbrake on gently let the clutch up slowly and see if it feels like its slipping if the clutch is ok then the car will stall this is what will happen if the clutch is ok.

Let me know how you get on or if you have any problems or questions and ill assist you the best i can ok.

SOURCE: 1990 Toyota 4runner wont go into 5th or reverse

They had a problem with this plastic washer that is in the shifter tower it sits just under the shifter it self and gets worn out and causes this to happen- hope that helps.

SOURCE: VOLVO S60 2004 D5 3RD GEAR GEARBOX CRUNCH

Sounds as if a synchronizer is going out in 3rd gear, or 3rd gear maybe stripped. I would get it checked by a tranny (transmission) shop before it ended up costing you more money. There is a possibility that there may be some shavings on that gear as well, which would just need cleaned.

SOURCE: transmission problems (gear linkage)

The gear linkages are not correctly aligned.
Is the gearbox mounting in exactly the same place as when you removed it?
Even a 1/4 inch will offset the gears.
hope this helps

SOURCE: 06 ford focus 5spd. no 1st, 3rd, or 5th gear.

It sound like the gear linkage isn,t set up right, you wouldn,t always be able to engage a gear unless you rocked the car.