Well Guys,

 

It happens to us all i guess the z died last night. Been noticing an autobox shifting problem lately that I'd put down to the cold snap and cold oil. As some of you may know I fitted the HKS Automatic Line Shifter some time ago and the z centre auto box oil cooler upgrade recently (5,000miles ago). There has been a noticeable cooling of transmission running temperature since fitting the cooler upgrade on high speed long distance journeys, where the heat that I used to feel through the handbrake boot is much lower.

 

The shifting problem was the box not shifting up at full power with overdrive off until the car was about 5 miles into a journey.

 

Maybe connected anyways...............

 

Yesterday had a high speed sprint vs. a mild supra TT (totally evenly matched) then I had to get over to manchester (40 mile trip) late a night which was done at high speed. On turning off the motorway and coasting down the slip road the transmission started to make a horrible graunching noise which got worse and I limped into a hotel car park with the car by this time making an awful noise.

 

AA trailered it home where pushing it back into the drive in neutral you could feel a 'notchiness' (in the propshaft bearing perhaps?). Of course my hope is that it is a prop-shaft bearing issue but it could be something more serious and buried in the autobox. Have dipped to trans oil and there is no metal in there so.........?

 

Thoughts? :bow:

 

Relevant Spec details:-

1992 JDM Twin turbo Auto

Mines Light tune ECU

Blitz Air filter

Hard pipe kit

Stillen intercoolers

UK rear wheels

HKS ALC line controller

Well Guys,

 

It happens to us all i guess the z died last night. Been noticing an autobox shifting problem lately that I'd put down to the cold snap and cold oil. As some of you may know I fitted the HKS Automatic Line Shifter some time ago and the z centre auto box oil cooler upgrade recently (5,000miles ago). There has been a noticeable cooling of transmission running temperature since fitting the cooler upgrade on high speed long distance journeys, where the heat that I used to feel through the handbrake boot is much lower.

 

The shifting problem was the box not shifting up at full power with overdrive off until the car was about 5 miles into a journey.

 

Maybe connected anyways...............

 

Yesterday had a high speed sprint vs. a mild supra TT (totally evenly matched) then I had to get over to manchester (40 mile trip) late a night which was done at high speed. On turning off the motorway and coasting down the slip road the transmission started to make a horrible graunching noise which got worse and I limped into a hotel car park with the car by this time making an awful noise.

 

AA trailered it home where pushing it back into the drive in neutral you could feel a 'notchiness' (in the propshaft bearing perhaps?). Of course my hope is that it is a prop-shaft bearing issue but it could be something more serious and buried in the autobox. Have dipped to trans oil and there is no metal in there so.........?

 

Thoughts? :bow:

 

Relevant Spec details:-

1992 JDM Twin turbo Auto

Mines Light tune ECU

Blitz Air filter

Hard pipe kit

Stillen intercoolers

UK rear wheels

HKS ALC line controller

 

check oil level as if the level is low then grinding may be heard,check colour of fluid,it should be ruby red if its burnt then id imagine your box is knackered TBH,the 300 autobox is the weak link to the whole car and at this age more and more are failing,

check oil level as if the level is low then grinding may be heard,check colour of fluid,it should be ruby red if its burnt then id imagine your box is knackered TBH,the 300 autobox is the weak link to the whole car and at this age more and more are failing,

 

auto box level good, oil ruby red no metal particles at all. beginning to believe it was propshaft bearing that went...........(hoping)