99blkgs Posted April 18, 2009 Share Posted April 18, 2009 hey guys i have a 99 gs300 that i have been having some trans problems with. it is first and foremost spotting trans oil in my driveway. i changed the fluid with type 3 and the guys at the shop added an additive to make it compatible with the totyota type 4 fluid. this is what the trans does: if you are in park and you put it in drive it will make a clunking noise. it will NOT jerk or slip wen you drive it, through all the gears but when you are driving lets say at 40mph and you totally let go of the gas and you engage the gas pedal again it makes a clunking noise. so it does not do it if you keep your foot on the gas and accelerate either slowly or push the pedal to the floor but only when you let off totally then put your foot on the gas pedal again? Quote Link to comment Share on other sites More sharing options...
djspawn00 Posted April 18, 2009 Share Posted April 18, 2009 First I'd say use the proper fluid... where was the fluid leaking from? Was it overfilled before? Possibly a bad tranny mount? Quote Link to comment Share on other sites More sharing options...
99blkgs Posted April 18, 2009 Author Share Posted April 18, 2009 First I'd say use the proper fluid... where was the fluid leaking from? Was it overfilled before? Possibly a bad tranny mount? honestly i cannot tell where its leaking from but i know that it is because it spots all over my driveway and its the only car i keep outside, but it was leaking and doing the trans clunking noise before i even changed the trans fluid. you are right it could be a tranny mount. Quote Link to comment Share on other sites More sharing options...
dcfish Posted April 18, 2009 Share Posted April 18, 2009 hey guys i have a 99 gs300 that i have been having some trans problems with. it is first and foremost spotting trans oil in my driveway. i changed the fluid with type 3 and the guys at the shop added an additive to make it compatible with the totyota type 4 fluid. this is what the trans does: if you are in park and you put it in drive it will make a clunking noise. it will NOT jerk or slip wen you drive it, through all the gears but when you are driving lets say at 40mph and you totally let go of the gas and you engage the gas pedal again it makes a clunking noise. so it does not do it if you keep your foot on the gas and accelerate either slowly or push the pedal to the floor but only when you let off totally then put your foot on the gas pedal again? You need to do a fill while drain on that bad boy, Then fill it with t-4 toyota tranny fluid. To find the leak, Place a large piece of cardboard under the tranny overnight, Then you can tell where the leak is by looking at the spot and look directly above that "spot". Have you checked the fluid level ? Quote Link to comment Share on other sites More sharing options...
99blkgs Posted April 19, 2009 Author Share Posted April 19, 2009 hey guys i have a 99 gs300 that i have been having some trans problems with. it is first and foremost spotting trans oil in my driveway. i changed the fluid with type 3 and the guys at the shop added an additive to make it compatible with the totyota type 4 fluid. this is what the trans does: if you are in park and you put it in drive it will make a clunking noise. it will NOT jerk or slip wen you drive it, through all the gears but when you are driving lets say at 40mph and you totally let go of the gas and you engage the gas pedal again it makes a clunking noise. so it does not do it if you keep your foot on the gas and accelerate either slowly or push the pedal to the floor but only when you let off totally then put your foot on the gas pedal again? You need to do a fill while drain on that bad boy, Then fill it with t-4 toyota tranny fluid. To find the leak, Place a large piece of cardboard under the tranny overnight, Then you can tell where the leak is by looking at the spot and look directly above that "spot". Have you checked the fluid level ? yea the guys at the shop did a fill as they drained it and all the nasty dark oil came out till the nice pink oil was draining. i will do the cardboard trick tomorrow and the tranny fluid level seems to be normal its just the clunking noise that really bothers me, i hate taking this thing to the dealer they always find some bs to tel you that is wrong with it when it really isnt Quote Link to comment Share on other sites More sharing options...
dcfish Posted April 19, 2009 Share Posted April 19, 2009 hey guys i have a 99 gs300 that i have been having some trans problems with. it is first and foremost spotting trans oil in my driveway. i changed the fluid with type 3 and the guys at the shop added an additive to make it compatible with the totyota type 4 fluid. this is what the trans does: if you are in park and you put it in drive it will make a clunking noise. it will NOT jerk or slip wen you drive it, through all the gears but when you are driving lets say at 40mph and you totally let go of the gas and you engage the gas pedal again it makes a clunking noise. so it does not do it if you keep your foot on the gas and accelerate either slowly or push the pedal to the floor but only when you let off totally then put your foot on the gas pedal again? You need to do a fill while drain on that bad boy, Then fill it with t-4 toyota tranny fluid. To find the leak, Place a large piece of cardboard under the tranny overnight, Then you can tell where the leak is by looking at the spot and look directly above that "spot". Have you checked the fluid level ? yea the guys at the shop did a fill as they drained it and all the nasty dark oil came out till the nice pink oil was draining. i will do the cardboard trick tomorrow and the tranny fluid level seems to be normal its just the clunking noise that really bothers me, i hate taking this thing to the dealer they always find some bs to tel you that is wrong with it when it really isnt Yes, But t-3 with an additive is not the right way to go, You need to have t-4 fluid.These trannys love to be fed the right stuff. ;) Quote Link to comment Share on other sites More sharing options...
Smoothtalker Posted April 22, 2009 Share Posted April 22, 2009 Im new to the club, but it sound like a motor mount or trans mount to me, try power breaking it and have someone see if the motors moves up and down Quote Link to comment Share on other sites More sharing options...
sakataj Posted April 22, 2009 Share Posted April 22, 2009 check the differential while your at it....it shouldn't be a motor mount or a tranny mount but anything is possible. start with the basis first and work your way down the list Quote Link to comment Share on other sites More sharing options...
99blkgs Posted April 23, 2009 Author Share Posted April 23, 2009 check the differential while your at it....it shouldn't be a motor mount or a tranny mount but anything is possible. start with the basis first and work your way down the list i have had a problem with the differential seal on this thing before and i replaced it but when i replaced the bottom plug i did not buy the one that had the magneti in it to collect shavings so i dont know maybe that had soemthing to do with it and yes maybe it could be the differential as soon as i put it in d from park it clunks real loud Quote Link to comment Share on other sites More sharing options...
sakataj Posted April 23, 2009 Share Posted April 23, 2009 i have had a problem with the differential seal on this thing before and i replaced it but when i replaced the bottom plug i did not buy the one that had the magneti in it to collect shavings so i dont know maybe that had soemthing to do with it and yes maybe it could be the differential as soon as i put it in d from park it clunks real loud u should have bought that plug or reused your oem one...i recently (last sat) shattered my differential and when i removed my plug OMFG it was metal shavings EVERYWHERE on that magnetic plug. fluid inside was clumpy silver looking! seriously....? that's really sounding like a diff man...does it clunk from park to reverse also? you might wanna take this in soon before it completely destroys the diff/gears/ring/pinion/etc IF its the diff. which like i said it seems to sound like it is don't worry though....supra TT pumpkin straight bolts and you get a LSD inside it...i wanted one, just couldn't find one cheaply. i got my replacement gs430 pumpkin for 200 shipped. you can use ANY gs series diff but depending on if you go back to the gs300 or the gs400/gs430 you'll have different gearing in the differential Quote Link to comment Share on other sites More sharing options...
99blkgs Posted April 25, 2009 Author Share Posted April 25, 2009 i have had a problem with the differential seal on this thing before and i replaced it but when i replaced the bottom plug i did not buy the one that had the magneti in it to collect shavings so i dont know maybe that had soemthing to do with it and yes maybe it could be the differential as soon as i put it in d from park it clunks real loud u should have bought that plug or reused your oem one...i recently (last sat) shattered my differential and when i removed my plug OMFG it was metal shavings EVERYWHERE on that magnetic plug. fluid inside was clumpy silver looking! seriously....? that's really sounding like a diff man...does it clunk from park to reverse also? you might wanna take this in soon before it completely destroys the diff/gears/ring/pinion/etc IF its the diff. which like i said it seems to sound like it is don't worry though....supra TT pumpkin straight bolts and you get a LSD inside it...i wanted one, just couldn't find one cheaply. i got my replacement gs430 pumpkin for 200 shipped. you can use ANY gs series diff but depending on if you go back to the gs300 or the gs400/gs430 you'll have different gearing in the differential hey man how are ya, i went to the mechanic today and he had it on the hoist and this guy only works on lexus so hes quite familiar with them. he said the bearing in the yoke which is at the end of the trans connecting to the drive shaft is bad. there was alot of play in it. i also will be changing my u joint and my differential seal. i will also get the plug for the bottom with the magnetic end to it. i should have done that along time ago and now i really wanna slap myself but the mechanic said that the differential is fine. i will keep this post updated to let everyone know what and how it was fixed. hopefully i can also take some pics as well of the work being done for peoples future refrence. thanx and wish me luck lol Quote Link to comment Share on other sites More sharing options...
sakataj Posted April 27, 2009 Share Posted April 27, 2009 hey man how are ya, i went to the mechanic today and he had it on the hoist and this guy only works on lexus so hes quite familiar with them. he said the bearing in the yoke which is at the end of the trans connecting to the drive shaft is bad. there was alot of play in it. i also will be changing my u joint and my differential seal. i will also get the plug for the bottom with the magnetic end to it. i should have done that along time ago and now i really wanna slap myself but the mechanic said that the differential is fine. i will keep this post updated to let everyone know what and how it was fixed. hopefully i can also take some pics as well of the work being done for peoples future refrence. thanx and wish me luck lol well all i can say is at least now you found your problem and it wont be terribly expensive to fix....so thats a plus :D Quote Link to comment Share on other sites More sharing options...
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