jazz1 Posted December 15, 2007 Share Posted December 15, 2007 well the other day i was driving the supra after it being parked for years, when i put my foot down the rev counter went up a little but the car didnt pull as it used to, anyways today the car was fine i had the mechanics take it for a spin and he said the clutch is fine and that the second turbo is kicking in at 3000 rpm. The only mod i have is a front mount intercooler and exhaust cat back. I checked all pipes and they seem fine, what could be the problem the car seemed fine today and flys well, the mechanic said it could be a case of the car being parked for years that the clutch may have seized abit and might need running in? i dont want any problem with the bitch Quote Link to comment Share on other sites More sharing options...
AndyT Posted December 15, 2007 Share Posted December 15, 2007 Your brakes could've been binding slightly too mate. Should be ok after a few miles. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 15, 2007 Author Share Posted December 15, 2007 yea i hope so seemed fine today and when the mechanic drove it he said that everything shifts fine its quick responsive etc maybe i need to take it easy and let the engine run in:) Quote Link to comment Share on other sites More sharing options...
Ewen Posted December 15, 2007 Share Posted December 15, 2007 Mummified rat in the throttle body ? Quote Link to comment Share on other sites More sharing options...
Nic Posted December 15, 2007 Share Posted December 15, 2007 Sounds like the clutch is slipping from your description, if it has just started it may only be slipping when under heavy load. To test it put it in a high gear (say 4th), at slow speed (say 30mph) and accelerate, this will put the clutch under a lot of load, if it is slipping you will hear the revs rise, without the car picking up speed. Back off if you do feel it slipping, as the slipping will generate a lot of heat. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 15, 2007 Share Posted December 15, 2007 I agree with the others, it sounds like the clutch slipping. It's perfectly normal after having the car sitting for a long while. I'd give it a good few hundred miles of driving to clear all the cr*p off the friction surfaces, take it easy for a few hundred miles and try to not let it slip too much - i.e back off the throttle if it does start. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 15, 2007 Author Share Posted December 15, 2007 yea thats what the mechanic said cheers guys buts less stress on my head even if the clutch went it would mean any excuse for a performance one:) buts thanks guys il take it easy for now Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 15, 2007 Author Share Posted December 15, 2007 Sounds like the clutch is slipping from your description, if it has just started it may only be slipping when under heavy load. To test it put it in a high gear (say 4th), at slow speed (say 30mph) and accelerate, this will put the clutch under a lot of load, if it is slipping you will hear the revs rise, without the car picking up speed. Back off if you do feel it slipping, as the slipping will generate a lot of heat. yea remember when driving on the motorway that happend, i think i was in 3rd or 4th gear and i decided to put my foot down until the revs went up and it didnt pull as it should, il just take it easy for a hundred miles and see if it clears up Quote Link to comment Share on other sites More sharing options...
Homer Posted December 15, 2007 Share Posted December 15, 2007 yea remember when driving on the motorway that happend, i think i was in 3rd or 4th gear and i decided to put my foot down until the revs went up and it didnt pull as it should, il just take it easy for a hundred miles and see if it clears up When the 2nd turbo spools in 4th (or thereabouts) is pretty much the highest load point so almost certainly confirms it's the clutch slipping. I had the same after my car was (more or less) sat for 8 months. It cleared up after 200 miles or so and has been perfect since. Quote Link to comment Share on other sites More sharing options...
colsoop Posted December 16, 2007 Share Posted December 16, 2007 Not to sound dumb but it wasn't wheel spin was it ? Quote Link to comment Share on other sites More sharing options...
JamieP Posted December 16, 2007 Share Posted December 16, 2007 Mummified rat in the throttle body ? Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 16, 2007 Author Share Posted December 16, 2007 Not to sound dumb but it wasn't wheel spin was it ? nah because my borther knows bit about cars more than me and also said its the clutch i agree with homer as the mechanics said the same thing, guess i have to take it easy and run her in but dam is she very fast with just adding an intercooler Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 still notice this happens although im going to carry on driving her and see if it clears after 300 more miles, could it just be the clutch i hope its nothing else Quote Link to comment Share on other sites More sharing options...
Sean1933 Posted December 29, 2007 Share Posted December 29, 2007 Sounds like just the clutch to me, does it happen at high load points like 4-5K rpm and worse in high gears?. Also where abouts is the bite point out of interest? Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 yea happens on higher gears and around above 3000 rpm, although im taking it easy like homer said il give it another 300 miles but it annoys me like hell i just want it perfect Quote Link to comment Share on other sites More sharing options...
AndyT Posted December 29, 2007 Share Posted December 29, 2007 yea happens on higher gears and around above 3000 rpm, although im taking it easy like homer said il give it another 300 miles but it annoys me like hell i just want it perfect Waste gate sticking. If it doesn't open the car becomes sluggish and un turbo like. Believe the spring sticks....and this happens. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 Waste gate sticking. If it doesn't open the car becomes sluggish and un turbo like. Believe the spring sticks....and this happens. so what does that mean? is it fixable and at around what cost Quote Link to comment Share on other sites More sharing options...
AndyT Posted December 29, 2007 Share Posted December 29, 2007 so what does that mean? is it fixable and at around what cost Not bad mate. Looking for a thread with these probs that was around in last couple of days. Cost about 37 pence I think. Edit. Here it is Jazz. http://www.mkivsupra.net/vbb/showthread.php?t=135059&highlight=power+problem Sorry I got the terminology wrong. Does this describe your symptoms bud???? Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted December 29, 2007 Share Posted December 29, 2007 Waste gate sticking. If it doesn't open the car becomes sluggish and un turbo like. Believe the spring sticks....and this happens. From reading this thread I dont think its this. Jazz are you sure the 2nd turbo is coming online? Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 From reading this thread I dont think its this. Jazz are you sure the 2nd turbo is coming online? yep second turbo kicks in fine the mechanic drove the car 2 weeks back and it shifted fine he said everything is boosting and second turbo is kicking in around 3000 rpm, Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted December 29, 2007 Share Posted December 29, 2007 Im going to stick with the clutch as iv just said in my PM mate, naff all to do with wastegates imo Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 cheers rob, il stick to homers advice then and take it easy for another 300 miles, if it dont clear im going to replace the damn thing Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted December 29, 2007 Share Posted December 29, 2007 yep second turbo kicks in fine the mechanic drove the car 2 weeks back and it shifted fine he said everything is boosting and second turbo is kicking in around 3000 rpm, Sometimes its known not to bring the 2nd turbo in first time and reapplying the accerlarator will bring it online. I have to admit sounds like clutch though it being ok one minute and not the next makes me wonder what it could be. It may be an idea to get another member to drive it. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 29, 2007 Share Posted December 29, 2007 Jazz could you clarify the symptoms? It's not totally clear what issue you're seeing. When you're accelerating hard in say 4th gear, is the 2nd turbo boosting? I.e. there is a noticable increase in acceleration/boost pressure? Does the rpm increase inline with acceleration? If the rpm increases but the speedo doesn't increase a proportional amount this indictaes clutch slip (which your first post seemed to indicate) If the speedo and rpm are increasing at proportional rates then can you confirm what boost levels you're seeing at around 3400rpm under 100% throttle in a high gear and again the boost level at 4800rpm. This should indicate whether the 2nd turbo is coming online. If there is no real difference the very likely (and common) cause is the EGBV sticking. Have any 'bling' hoses been added to the engine bay? Any vac pipes changed, etc since the car was last run? Quote Link to comment Share on other sites More sharing options...
jazz1 Posted December 29, 2007 Author Share Posted December 29, 2007 no hosea added they are standard, just the intercooler and greddy exhaust. The second turbo shows it coming online at 3000 rpm but when i put my foot down say in 3rd gear and above the rev counter seems to go up but the car does not pull like it should shift. all the hoses i checked and they seem fine, anybody have the number to phoenix maybe i could take it there and get it checked out Quote Link to comment Share on other sites More sharing options...
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