Shuddering on hard acceleration?

[TRD_Aurion]

Hi guys,

I have a 2007 TRD Aurion, 220000km on the clock. I notice on hard acceleration there is some hesitation (normal for an auto as I imagine the torque converter is spinning up) but also a slight shudder. I don’t remember if this has happened before. What could this be? I’ve heard that if the transmission fluid has not been changed in a long time then it shouldn’t be changed? 

I’ll take it to a transmission specialist eventually, just need to get over the shock of the $4k I’ve spent on this car recently on fixing things. 

Edited December 1, 2023 by TRD_Aurion

[Baxter190388]

Not sure if it will be the case for you but I had that issue (vibration, didnt notice hesitation) which got progressively worse but to begin with I only noticed it on hard acceleration and it turned out to be a CV shaft.

What did you need to splash 4 grand on?

Edited December 1, 2023 by Baxter190388

[TRD_Aurion]

Hmm, mechanic did notice a slight leak from CV boot.

Water pump, new brake rotors, pads, tyres all round. The brakes were a nightmare to find the correct size (due to larger TRD brakes), and the mechanic doesn't use parts brought in by the customer 🙄.