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

firm shifts

Thread Tools
 
Search this Thread
 
Old 06-15-06, 04:42 PM
  #1  
Dima87
Rookie
Thread Starter
 
Dima87's Avatar
 
Join Date: Jul 2005
Location: IL
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default firm shifts

i just bought a 97 sc300 and auto, and when ever the trans shifts from 1st to 2nd 2nd to 3rd and so on i can feel the shift, its not super smooth. i mean its not slipping or anything i can just feel a nice fast firm shift. is that normal or do the sc's should shift with out you even feeling anything?
Old 06-15-06, 06:34 PM
  #2  
Tammy
Lexus Champion
 
Tammy's Avatar
 
Join Date: Mar 2004
Location: Arizona
Posts: 1,973
Likes: 0
Received 8 Likes on 8 Posts
Default

What's the ATF fluid look like? How many miles on the vehicle? Any records of transmission service?
Old 06-15-06, 06:52 PM
  #3  
Dima87
Rookie
Thread Starter
 
Dima87's Avatar
 
Join Date: Jul 2005
Location: IL
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default

the trans is full, and clean fluid. car has 130k on it. dont know about the history.
Old 06-15-06, 07:22 PM
  #4  
Tammy
Lexus Champion
 
Tammy's Avatar
 
Join Date: Mar 2004
Location: Arizona
Posts: 1,973
Likes: 0
Received 8 Likes on 8 Posts
Default

Transmission is full... Clean and what color on a white rag? Cherry red, rust red or brown and clear?

If you don't have a clue there just might be the wrong fluid installed. Does the dipstick have stamped down on it ...Use Type IV Fluid? or Dexron III?

Unless it's not burnt smelling and cherry red in color, a couple of drain and fill proceedures might be in order.

How are the rest of the fluids, the coolant (red toyota), power steering (red - dexron III) and brake fluids (clear, no color to a slight yellowish) ? Your Lexus likes fresh fluids...
Old 06-15-06, 07:30 PM
  #5  
Dima87
Rookie
Thread Starter
 
Dima87's Avatar
 
Join Date: Jul 2005
Location: IL
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default

i think i will do a drain and fill on the trans this weekend, and for some reason i have green coolant in it, i did not know it takes red.
Old 06-15-06, 09:23 PM
  #6  
scsrock
Pole Position
 
scsrock's Avatar
 
Join Date: Nov 2003
Location: Washington
Posts: 284
Likes: 0
Received 0 Likes on 0 Posts
Default

I have green coolant too. Someone said that there wasn't any red fluid at the time SC was designed (so I guess red fuild is ok).
Old 06-15-06, 10:05 PM
  #7  
JspecSC3
Lexus Champion
iTrader: (4)
 
JspecSC3's Avatar
 
Join Date: Jan 2005
Location: N/A
Posts: 4,908
Likes: 0
Received 0 Likes on 0 Posts
Default

I recommend getting a transmission flush. You should be getting rid of those hard shifts after that.
Old 06-15-06, 10:59 PM
  #8  
Tammy
Lexus Champion
 
Tammy's Avatar
 
Join Date: Mar 2004
Location: Arizona
Posts: 1,973
Likes: 0
Received 8 Likes on 8 Posts
Default

My research has me concluding that green prestone type coolant is designed for cast iron block engines. My "2F" 4.2 straight six in a landcruiser is cast iron and it had factory filled green.

The red 50/50 with distilled water and pre-mixed pink are factory filled for Toyota/Lexus aluminum block engines.
Old 06-16-06, 11:59 AM
  #9  
Dima87
Rookie
Thread Starter
 
Dima87's Avatar
 
Join Date: Jul 2005
Location: IL
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default

what type of ATF fluid does the sc300 take? do you think a drain and fill would help.
Old 06-16-06, 01:51 PM
  #10  
fjurado1
Rookie
 
fjurado1's Avatar
 
Join Date: May 2006
Location: Ca
Posts: 67
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Dima87
what type of ATF fluid does the sc300 take? do you think a drain and fill would help.
Do a new gasket and tranny filter service yourself. I put in Amsoil Sythetic ATF, very nice shifts!!
You can Use Mobil1 synthetic ATF or Type IV tranny fluid from Toyota.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GX111
GX - 2nd Gen (2010-2023)
3
05-16-19 06:42 AM
kelleher2
LS - 3rd Gen (2001-2006)
10
04-02-10 02:17 PM
ToyotaLexus
RX - 1st Gen (1999-2003)
4
02-26-09 07:33 AM
Dbl400Trbl
Maintenance
4
05-23-05 12:54 AM
Black94RX-7TT
Performance & Maintenance
8
02-27-02 06:05 AM



Quick Reply: firm shifts



All times are GMT -7. The time now is 12:02 AM.