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The converter shares the fluid with the rest of the trans.
Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
I wasn't implying you don't know how to read trans fluid, but i thought it's useful to put up such info for some others who may also be reading this thread. Oddly, I did think you may have found the blotter test interesting, wrt viscosityI know how to read transmission fluid.
And I can tell you 100% the stuff that came out was thinner than the stuff that went in and the synthetic trans fluid is fairly thin to start with.
Trans fluid isn't your traditional oil and seems it doesn't behave like it either.
It is just a awful coincidence to have the trans issue just after i worked on the car. It undermines the self confidence for a while until the issue was found.
If the mechanic only dumped what was in transmission pan, he's only changed around 1/2 to 1/3 of the trans fluid. The converter, passages within the transmission, even the pipes to the radiator/trans cooler all contain old fluid. a pan change wont change this old fluid. Probably why he's getting you back in do do another pan drop change... but that process is still OK...Do you think the fluid inside the converter is cooked or it is actually physically broken.
The slipping behaviour of the converter doesn't seems to have changed from before the noise started.
PS: never tried to remove TC bolts from flex plate and pushing the TC back towards the trans. I guess it's similar in theory to pushing a clutch down to test/check if some gearbox bearing noise goes away... Just not sure what's to stop the TC moving forward towards the flex plate while things are turning... any comments on this @hjtrbo ?
That's the same as the ZL1 in the US, right?The 6L90 converter is a worthy choice if you have to replace yours down the track. Slightly higher stall speed at around 2200rpm. They'll handle 550rwkw all day long. Small mods required to convert your flex plate from 3 bolt to a 6 bolt pattern. I bought one last year from Holden for $950. Torque converter tune is required.