Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

W58 acting odd

Thread Tools
 
Search this Thread
 
Old 12-04-13 | 11:11 PM
  #1  
ashtray's Avatar
ashtray
Thread Starter
Pole Position
iTrader: (12)
 
Joined: Jun 2008
Posts: 3,313
Likes: 1
From: Texas
Exclamation W58 acting odd

So pretty much every day now, either first gear or the reverse gear wont go in. Normally a little sequence of 2 "notches" and the gear slides in to where I know it is in gear. Now it feels like it just hits a wall and doesn't go all the way into gear and more so half way. I play with the clutch and after 2 or 3 pumps the gears are viable again. Just once, I thought "maybe it is in gear"....slightly inch the clutch out and I get that horrible grinding noise. Pumped the clutch about 2 times tried again and presto. What causes this?
Old 12-05-13 | 05:42 AM
  #2  
stockhatch's Avatar
stockhatch
Lexus Champion
iTrader: (12)
 
Joined: May 2009
Posts: 2,544
Likes: 5
From: Raleigh NC
Default

Slave, master, both, air in the lines, or failing pressure plate. Bottom line is that you are not getting clutch disengagement.
Old 12-05-13 | 07:37 AM
  #3  
SC400slide's Avatar
SC400slide
In Recovery Mode
CL Folding 25,000
iTrader: (11)
 
Joined: Apr 2012
Posts: 3,871
Likes: 35
From: NM
Default

If you haven't you might wanna check the fluid level in the master cylinder first...sounds like a Slave cylinder issue to me. When you replace the slave, replace the Master as well because it will go out after the slave, usually.
Old 12-05-13 | 12:38 PM
  #4  
Ali SC3's Avatar
Ali SC3
Lexus Champion
CL Folding 100000
iTrader: (10)
 
Joined: Oct 2007
Posts: 10,769
Likes: 448
From: CO
Default

Might be the master or slave on its way out, take a look for visual leaks is step number 1.
2nd try bleeding the slave.
If its not bleeding out and the pedal firming up, then take the line off the slave and hold it in a bucket, get someone to press the clutch pedal over and over and see if the master is even pushing out fluid still after a few pumps (even a bad master will push/pull whats in the line but not whats in the reservoir). If it isn't and the line just drains you probably have a bad master or a master on its way out, I just had to replace mine a few months back. If it shoots out fluid like there is no tomorrow on each pump, then master is OK and its prob the slave.
I tried replacing the slave first and it didn't work, thats when I realized I could just test the master like that with the line off the slave, and the master was bad. Or you can just replace both but the master is the pricey one.
Old 12-05-13 | 01:47 PM
  #5  
ashtray's Avatar
ashtray
Thread Starter
Pole Position
iTrader: (12)
 
Joined: Jun 2008
Posts: 3,313
Likes: 1
From: Texas
Default

Thank you guys for the info. I'll probably do all of this after finals unless it gets very bad then I'll have to get a shop to do it as all my free time is now study time. For now I'm just doing what I have to to get the car into gear. How much are we talking money wise for these jobs?
Old 12-05-13 | 01:54 PM
  #6  
SC400slide's Avatar
SC400slide
In Recovery Mode
CL Folding 25,000
iTrader: (11)
 
Joined: Apr 2012
Posts: 3,871
Likes: 35
From: NM
Default

Chances are, your slave is leaking fluid. You can keep adding fluid to the master but it still will leak. (obviously) And the clutch will still show issues.
Old 12-05-13 | 02:10 PM
  #7  
ashtray's Avatar
ashtray
Thread Starter
Pole Position
iTrader: (12)
 
Joined: Jun 2008
Posts: 3,313
Likes: 1
From: Texas
Default

The issue of a slave or master going out...does it physically harm any other component of the transmission? I should have enough time tonight to check her fluids and top them off if they're low.
Old 12-05-13 | 03:12 PM
  #8  
SC400slide's Avatar
SC400slide
In Recovery Mode
CL Folding 25,000
iTrader: (11)
 
Joined: Apr 2012
Posts: 3,871
Likes: 35
From: NM
Default

Originally Posted by ashtray
The issue of a slave or master going out...does it physically harm any other component of the transmission? I should have enough time tonight to check her fluids and top them off if they're low.
Shouldn't hurt anything besides losing brake fluid.
Old 12-06-13 | 05:01 AM
  #9  
stockhatch's Avatar
stockhatch
Lexus Champion
iTrader: (12)
 
Joined: May 2009
Posts: 2,544
Likes: 5
From: Raleigh NC
Default

You can cook the synchros if you keep driving it with the clutch not disengaging.
Old 12-06-13 | 10:38 AM
  #10  
Ali SC3's Avatar
Ali SC3
Lexus Champion
CL Folding 100000
iTrader: (10)
 
Joined: Oct 2007
Posts: 10,769
Likes: 448
From: CO
Default

^^ this is true, If you like to put it back in first when you are inbetween that first and second speed stop doing that until you fix it, with the clutch not fully disengaging you don't want to mess that 1st gear up. other than that shift slow and you should be fine but you may wear out the clutch the longer its like that, unless the few pumps you give it in the morning solves the problem temporarily, but likely its going to get worse over time and you may find your clutch pedal on the floor one morning. Just be aware at this stage it can go out even when you are driving and then you won't be able to catch another gear without some grinding action and then usually a tow back home if you are not fortunate enough to have it go out in your driveway.

its not that bad of a job, just a little messy. aftermarket slave is like under $30 and an aftermarket (centric) master that I used was closer to $100. I didn't go oem because it was double price and would take extra time to come from the warehouse at the dealer here but no issues with the new master or slave. works great in fact. and the master rebuild kit is not worth the hassle or time, its usually the cylinder wall that wears on the master itself. I tried the kit because they had it in stock, and it did not work, huge waste of time I tore it down several times trying to get it to work.

Last edited by Ali SC3; 12-06-13 at 10:42 AM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
is3t
IS - 1st Gen (2001-2005)
3
02-15-13 07:32 AM
JDMb16bEG6
SC- 1st Gen (1992-2000)
10
09-13-11 11:34 AM
baodalazi
SC- 1st Gen (1992-2000)
4
03-21-11 11:54 AM
LCSC
Performance & Maintenance
5
03-28-08 05:47 AM
soarer1986
Performance & Maintenance
2
06-19-07 10:38 PM




All times are GMT -7. The time now is 07:30 PM.