My car grinds in 3rd gear when I shift hard. I think my synchros is going. I talking to a guy last weekend that knows a lot about cars and he said changing my tranny fluid might solve the problem. Could this help or is he full of sh*t?

 

full of ****..bf's car grinded in 2nd..had to have the whole thing rebuilt

 

I heard it helps, but at the same time I doubt it will do much good. It wouldn't hurt, tho :dunno:

 

He told me to change it with synthetic, drive for a while and change it again to get all the old fluid out.

 

Yeah, he's telling the truth. What you are doing is putting a different viscosity oil in the transmision. Will it cure the problem? Yes and no, the tranny will shift without grinding, but your tranny is still worn out. It's the same thing with the engine, when it starts knocking, you dump in a heavier weight of oil and the knock goes away, but it will get worse.

As my brother says, "sudden, rapid dissasembly of internal components"

 

Ok thanks. I'll try changing the fluid.

 

i changed mine, it made it worse

 

how can you tell if you have bad synchros?

thx

 

when your gear grinds?