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Old 11-08-2020, 10:45 AM
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Trouble shootinf

Hello, I am new to this forum and owning a vehicle in general so bear with me.

I recently purchased a 1986, 2l diesel 4x4, 5spd manual transmission Toyota, this is my first vehicle and I am less than mechanically knowledgeable. 3rd gear is giving me problems right now and I would love some educated guesses on what the problem could be, when I shift into 3rd while coasting the engine braking works and all seems fine but as soon as I touch the gas it knocks it back in to neutral and starts to grind if I try and put it back in 3rd.

Old 11-09-2020, 06:45 AM
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Sounds like the 3rd gear synchros are worn out. That requires a complete teardown to fix. The other option is find another transmission from a junkyard or ebay and just swap it out.
Old 11-09-2020, 06:39 PM
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Originally Posted by moto809
Sounds like the 3rd gear synchros are worn out. That requires a complete teardown to fix. The other option is find another transmission from a junkyard or ebay and just swap it out.
The role of the syncro is the synchronization of the shafts and gears, a bad synchronization means it doesn't go into the gear. It doesn't make it drop out.

Regardless yeah that trans needs torn down and inspected.
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