MKiii making a weird noise

[cre]

One thing to remember with timing.... The greater the advance the longer the fuel is burning before the valve open back up... this means there is more heat (energy) absorbed by the block which the oil and coolant have to displace and less energy in the exhaust charge... it's denser and slower and in the worst cases the engine actually has to push to evacuate it and it can't get it all out before the intake valves open.

[MA70-3.0GT]

Just a quick thought, if the cat is partially blocked it could possibly produce a similar whining/wheezing noise around the gearbox area of the car. Decat pipe ftw (and keep the cat for test time) before throwing money at tranny etc.

Oh, and it's definitely not a wheel bearing is it? Don't really think temperature would affect that but another relatively cheap thing to check out...

[Travis89Turbo]

No definatly not wheel bearing it does it at idle in park. I'm gonna pull the cats off I just bought a 3" downpipe but won't be able to put it on for 2 weeks when I get back from vacation. I'm still leaning towards the cats bein clogged up and hopefully this will fix it. Ill post when I get some more info. Thanks for the help.

[MA70-3.0GT]

Ah, so we have the noise sat still in park... right then... what about sat in neutral? (I know it's silent in gear as I saw that bit! )

It is sounding more like gearbox/torque con. now you mentioned it being noisy in park. I hate trying to diagnose noises remotely, really need to be at the car & have a play round to find it!

[Travis89Turbo]

Ya i understand that completly.... The noise stops in gear while stopped i beleive its due to the rpm bein lower as soon as i go above 1000 it starts.. torque conv. makes sense also cuz it sounds like the noise is rotating. like chunks of metal rolling around in a drum. im still gonna try cats. if it is the tranny ill run it till she breaks i plan on R154 swap as soon as i can find one someone will ship. the car actually shifts really well except on decel. it like it engages then disengages

[MA70-3.0GT]

Mmmm, that engage/disengage does point towards trans issues... but only on decel.... or perhaps it would "hunt" between gears at certain steady speeds sometimes & you just haven't experienced that yet...

Either way I think that if you're planning a manual swap, you have the best idea so far in getting your moneysworth out of the autobox while you accumulate the R154 bits, but maybe try checking &/or changing the trans fluid & filter (what does it look/smell like by the way?) and have a look over the adjustment of the cables (kickdown & shifter) to see if there's anything awry there first...


P.S. Actually, I'm sure there was some kind of diag you could do on the gearbox in TSRM but I can't find it, usually if there's an electronic fault though the O/D light flashes...

EDIT-: Ah, found it!!! http://www.cygnusx1.net/Supra/Librar...aspx?S=AT&P=14

[Travis89Turbo]

So it don't look like we'll get to find out what the noise was caused from.... let the wife drive it to work and I have now become a victim of BHG. I ain't messin around with the 7mgte anymore although I know it can be a bad mother hugger... I have built two of them but I need a more reliable daily driver for more then 100k. Without needing to rebuild. so my 1jzgte front clip with 86000km or around 52k miles on it will be here on weds.