Hey All, So about 2 months ago I changed my filter for my Transmission and the fluid was dark brown -> Black in colour which I understand means its burnt. I changed all my fluid when I did my filter. However Last week my car wouldn't seem to change out of first gear when it was cold. Once warmed up the problem disappeared. I went to check my fluid again today and its gone back to being a brown/black colour... only 2 months after I changed it. Does this mean my Transmission is rooted? Cheers
Not necessarilly Unless the transmission is disassembled, some of the oil would not have been changed. There would be original oil remaining in the torque converter, as well as the oil cooler in the radiator.
Would that explain why its the RPM's are getting really high instead of changing to 2nd gear on cold startup? Jamerz is selling me a working transmission but so far i havent found any mechanic that wants to do the job and if they do they are quoting prices above $1k to change it :\
Hey mate First thing to do is to check the level on the gearbox on flat ground! Z gearboxes are really troublesome if not exactly level! Precision is needed on exact amount of fluid! This part would specifically explain the high rpm on 2nd gear as the clutch plates (yes autos have clutch plates) need an exact levelling of the oil (assuming its auto that is) As east coast states - the colour will be effected by the remaining oil - this is not really a problem at this stage otherwise if the oil is exactly level - it may be a linkage issue or even possibly the wrong type of oil
Your question is impossible to answer! What does "cold start up" mean? What does "RPM's getting really high" mean? The auto transmission is computer controlled, connect it to ConZult & check for fault codes. Does the oil on the dipstick smell burnt? Check these first, then take it to an Auto Transmission specialist & ask for an appraisal/ quote. The auto transmission isn't any harder to change than a manual transmission, so you could do it yourself. The "replacement transmission" you have been offered, can you test drive it? You wouldn't want to change it over only to discover it is in the same (or worse) condition than what you have now. The oil discolours primarily due to heat. It is cooled by passing through the engine coolant in the radiator. This coolant temperature is around 80 degrees Celcius. As the engine requires servicing at specified intervals, the same is true of the transmission. The fact that you mentioned the oil was black would indicate the servicing has been neglected.
sounds like its rooted... mine came out black, took it to the tranny shop and $2500 bucks latter and 2 boxes for parts it was sorted... nice red tranny fluid now.
Taking it for an appraisal on Monday, From what i've read and what the mechanic told me over the phone.. It could be heaps of different things. Sorry @EastCoastZ for my bad terminology. (still appreciate the help) I guess I just have to wait and see what the specialist says..
omg i gave you the contact details of a place that'll due it for ~$350. its essentially a box out, box in job. even when we went to knox automatics they quoted $450 and u were right there with me. where u pulling this 1k figure from ?
Do not change the box without getting a rebuilt Torque converter to put in with it. That would be stupid......
The mechanics local to me were charging through the ass for it i think mainly because they didn't want to do it. Ive managed to find one relatively local for $350, Sort of hoping that will fix the issue. As someone mentioned above thoe, it could be Oil Cooler? Where abouts are they located and are they hard to replace? Cheers.
Located on the radiator which I replaced. I can confirm that your new radiators transmission cooler was working perfectly as you saw the pink fluid that came from it and that auto I am selling to you geared fine. Could be possible that when the old cracked radiator overheated it also overheated your current auto.
Check the level and type regardless and yes - $350 is a good price for an auto swap - unless you can do it yourself
Too much oil or the wrong type can mean the auto clutch plates can slip and hence the higher rpm - many here have come across this issue before hence mentioning it - some haven't even been able to take off - lol There are three clutch plates from memory Its also the reason why the manual states to check this first as part of any gearbox check! Might be wrong - but given you just changed the oil - worth rechecking!
