I recently bought a 2000 V6 5 speed with 115000 miles as a weekend car. I have a noise coming from under the hood that is quiet loud at times. As I start out, first gear has little noise until around 3000 rpm, second as I just lightly touch the gas and then around 3000 rpm, third no noise, fourth the same as second and fifth no noise.
Car passed all New York State inspections and the mechanic told me he would suggest I change the transmission fluid, otherwise the car looks and runs like new. Put sea foam in gas and crankcase yesterday.
Well we could try to diagnose it but if we don't have a more specific sound we will be just guessing. Could you get an audio clip? Or jack up the car and row through the gears with a buddy outside with the hood popped?
If it does turn out to be syncros the trannys are dirt cheap for those cars, so good luck and let us know.