same thing happens when you have no oil in the gearbox
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| Grinding 2nd gear https://auszookers.com/forum/viewtopic.php?f=5&t=5273 |
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| Author: | gvzookdriver [ Fri Jun 19, 2009 5:32 pm ] |
| Post subject: | Grinding 2nd gear |
Hey guys I have a 99 GV V6 and on the down shift to 2nd gear and even sometimes high revs up shift to 2nd and 3rd its like the noise you make when you try and put the car into reverse and your still rolling forward that little bit (teeth grinding) and yes the cluch pedal is flat to the floor when changing gears whould anyone have any ideas what the problem is ???? Peter |
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| Author: | gvzookdriver [ Fri Jun 19, 2009 5:34 pm ] |
| Post subject: | Re: Grinding 2nd gear |
and should have said it dose not make the noise on the down shift to 2nd when going really slow |
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| Author: | Scrawny [ Fri Jun 19, 2009 5:50 pm ] |
| Post subject: | Re: Grinding 2nd gear |
Where does the clutch pedal take off? High or low? Does the clutch slip? Could be worn syncro's in the gearbox. Or maybe the clutch needs adjusting? I would suggest changing the gearbox oil and putting an additive in. If that doesn't fix it you'll need to go further. |
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| Author: | want33s [ Fri Jun 19, 2009 5:53 pm ] |
| Post subject: | Re: Grinding 2nd gear |
Most likely a worn or cracked synchro ring. |
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| Author: | steve [ Fri Jun 19, 2009 6:10 pm ] |
| Post subject: | Re: Grinding 2nd gear |
same thing happens when you have no oil in the gearbox
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| Author: | eldo [ Fri Jun 19, 2009 6:25 pm ] |
| Post subject: | Re: Grinding 2nd gear |
my hilux has just started to do the same thing, my first thought is to bleed the clutch slave cylinder and then after that drop the oil in the box and look for broken bits |
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| Author: | shep [ Fri Jun 19, 2009 6:35 pm ] |
| Post subject: | Re: Grinding 2nd gear |
my sierra has been doing the same for a while. i drained the oil but there were no bits so i put 2 tubes of sincro's in a tube in the box along with some 85/140 gear oil. as a result off doing this i can comfortably say don't do what i did as it made it worse. 
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| Author: | gvzookdriver [ Fri Jun 19, 2009 7:43 pm ] |
| Post subject: | Re: Grinding 2nd gear |
how much would it be to repllace the syncro's in the gearbox ?? and the cluch takes off towards the top and no no cluch slipping |
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| Author: | Brett [ Fri Jun 19, 2009 8:06 pm ] |
| Post subject: | Re: Grinding 2nd gear |
might be a long shot but chuck some new oil in the box. the grinding is the syncro's but new oil will help a little |
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| Author: | Scrawny [ Sat Jun 20, 2009 12:16 pm ] |
| Post subject: | Re: Grinding 2nd gear |
beginner4x4 wrote: how much would it be to replace the syncro's in the gearbox ??
and the cluch takes off towards the top and no no cluch slipping It sounds like the clutch could be near the end of it's life. Do you know how old it is? But before you do anything, change the oil and see what happens. You will be looking at a fair bit to do the syncro's! Ring the Diff and Gearbox Shop in Wilston (3356 8397) and talk to Steve. Mention you talked to Vaughan (me) from Sargent and he will look after you. |
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| Author: | kenn [ Sat Jun 20, 2009 12:30 pm ] |
| Post subject: | Re: Grinding 2nd gear |
ScrawnC wrote: beginner4x4 wrote: how much would it be to replace the syncro's in the gearbox ?? and the cluch takes off towards the top and no no cluch slipping It sounds like the clutch could be near the end of it's life. Do you know how old it is? But before you do anything, change the oil and see what happens. You will be looking at a fair bit to do the syncro's! Ring the Diff and Gearbox Shop in Wilston (3356 8397) and talk to Steve. Mention you talked to Vaughan (me) from Sargent and he will look after you. x2 ended up needing a new clutch though. |
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| Author: | TZAR [ Sat Jun 20, 2009 4:10 pm ] |
| Post subject: | Re: Grinding 2nd gear |
Learn to double clutch and you won't need synchros 
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| Author: | kenn [ Sat Jun 20, 2009 5:42 pm ] |
| Post subject: | Re: Grinding 2nd gear |
That or just flat change 
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| Author: | gvzookdriver [ Sat Jun 20, 2009 6:44 pm ] |
| Post subject: | Re: Grinding 2nd gear |
thanks guys will head in and see him in febuary (as im in tomor till then)(or could see him in nov on my time off) and see what he can do but will be changing all oils and filters when i get home |
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| Author: | gvzookdriver [ Mon Jun 22, 2009 10:18 pm ] |
| Post subject: | Re: Grinding 2nd gear |
i just had a thought would it be cheaper to get another gear box (about $450-$500) or just get mine fixed if it is the synchros |
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