JohnK Posted June 29, 2002 Share Posted June 29, 2002 Is it normal for a auto to "clunk" quite harshly when putting it in gear when the engine is cold, ticking over at approx 1000 rpm. By putting it in gear I mean when I select D or R from park the noise is when the box selects the gear not the level if you know what i mean! Quote Link to comment Share on other sites More sharing options...
Flipfinger Posted June 29, 2002 Share Posted June 29, 2002 Has it just started doing it? My clutch / box is rattly and clunky from cold sometimes - and that's the 5-speed NA, not the 6-speed TT manual - I'm guessing maybe it's a Supra-wide known ailment? Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 29, 2002 Share Posted June 29, 2002 Most auto boxes have a lot of drag when the box is cold. Hence the need for harder brake pressure when doing slow speed manoeuvres on a cold box. If it is a bit noisy it may be worth checking the fluid and possibly changing a couple of litres. I did mine and it got quite a bit quieter. The MKIV box is a very strong box and also one of the best so I should be OK. If follow fluid maintenance you should have no problems. If you don't know when the fluid was last changed, assume it has not been done and get it changed in the next few weeks. Don't bother asking Toyota as they won't even know which fluid to put in it. There is a thread (or several) that detail the correct method of checking the level and draining the fliud. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted June 29, 2002 Share Posted June 29, 2002 Mine does that only when its cold and on high idle. I assume theres a fair amount of torque build up at about 1000-1200 rpm that causes this. Either that, or both your's and my box/prop/diff are f**ked. I'm kinda hoping i'm right on the torque thing:) Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted June 29, 2002 Share Posted June 29, 2002 Well, i'm not sure about any TT/NA auto box differences, but my NA autobox is very smooth even when cold. Quote Link to comment Share on other sites More sharing options...
Steve W Posted June 29, 2002 Share Posted June 29, 2002 Exactly as Matt says:- Mine does that only when its cold and on high idle. I assume theres a fair amount of torque build up at about 1000-1200 rpm that causes this. When mine's cold (cold engine that is), the idle can be as high as ~1,600. If I put it into drive while it's still THAT high (ie. don't let it 'warm-up' at all first) it's quite a thud (not really a METALLIC clonk though). It also obviously 'sits down' quite suddenly as it's being held on the brake at quite high idle ! ! If I sit and let the engine warm up a bit (not really the box though ! ), so the idle drops to ~1.000/1,200, then it goes into drive fairly uneventfully I don't think the box fluid is going to start warming up much till you actually put it into drive/start moving ! If, however, it really IS a METALLIC clonk, then maybe something IS amiss. ie slight play in something ? Best let someone on here see if it sounds 'normal' soon ? Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted June 29, 2002 Share Posted June 29, 2002 I've found that my Clifford Intellistart cures the problem:D Quote Link to comment Share on other sites More sharing options...
Gareth Davies Posted June 29, 2002 Share Posted June 29, 2002 Originally posted by Syed Shah Well, i'm not sure about any TT/NA auto box differences, but my NA autobox is very smooth even when cold. Strangly I think i'd say that there's a difference between the two. Tha NA auto didn't clunk and was very smooth, where as the turbo one is definatly clunky when cold. But i'd presume the difference in the high speed gear changes is the difference in power Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted June 29, 2002 Share Posted June 29, 2002 Originally posted by Matt Harwood I've found that my Clifford Intellistart cures the problem:D got the same on my supra its good to use as a turbo timer and go in house and turn it off 5 mins later. its a bitch when you forget to turn it off mines set at 30 mins before it turns itself off do you have the pc connection kit too i got it but never tried it in 2 years you can have some fun with remote start when people have never seen it before must say my auto seems quiet sometimes it feels slightly notchy but its a strong box so i have read that it can handle up to 450-500 bhp thats some build quality dont worry about it next time you go to a meet get someone to check it out Quote Link to comment Share on other sites More sharing options...
JohnK Posted June 30, 2002 Author Share Posted June 30, 2002 Thanks people You have put my mind at rest, its not a metalic sound just a "clunk" seems as its the norm when cold. This is the first auto ive owned so I guess im still getting used to it. Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 30, 2002 Share Posted June 30, 2002 Yes that is normal. It would still be worth doing a fluid check to see if you have the correct level and to check on fluid condition. For £50 of fluid it is worth protecting the box. It is not a difficult DIY job to check or drain and refill. Quote Link to comment Share on other sites More sharing options...
JohnK Posted June 30, 2002 Author Share Posted June 30, 2002 Ill get it checked when it goes in for its 4.5k oil change. Quote Link to comment Share on other sites More sharing options...
THOR Racing Posted July 1, 2002 Share Posted July 1, 2002 Is 1600rpm a little high when cold? I'm sure mine isn't that high? I know on idle (warmed up engine) tickover the rpm is around 500->600 (v.low) and when cold around 1200rpm and that's with the AC on as well? Which does start to strain at the brakes. Maybe I just haven't been that observant but at 1600rpm the torque would be wrenching my leg off the brake pedal. Perhaps mine is just a low RPM idler?? Anyway, I don't let mine warm up before putting into gear, I shove it up and down between L,2,D all the time and I'm fast approaching 100Kmiles so it hasn't done it much harm. (crosses fingers and touches wood) What I don't do is floor it until it's warm, mainly to save my turbos. Pete Quote Link to comment Share on other sites More sharing options...
eyefi Posted July 1, 2002 Share Posted July 1, 2002 mine idles at 1600rpm for about a minute after a cold start, then drops to about 1100rpm unit it reaches temp and idles at 600rpm thereafter. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted July 1, 2002 Share Posted July 1, 2002 Mine starts at around 1200 when really cold, then drops to 1000 until warm, then idles at 600-700 ish. Takes about 3-4 minutes to warm up. Quote Link to comment Share on other sites More sharing options...
Andrew Dunk Shaw Posted July 1, 2002 Share Posted July 1, 2002 My uk tt auto's done just under 85000 miles now and has no clonks when putting it into gear from cold so i'd guess as others have said check the fluid level or get some one that knows about them to have a look at it. Regards Andrew(dunk)Shaw Quote Link to comment Share on other sites More sharing options...
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