Notices
Maintenance Discuss common Lexus maintenance questions here.

Should I get a tune-up?

Thread Tools
 
Search this Thread
 
Old Jan 25, 2006 | 01:11 PM
  #1  
LeXuSrAcIn's Avatar
LeXuSrAcIn
Thread Starter
Lexus Test Driver
 
Joined: Apr 2004
Posts: 1,231
Likes: 0
From: Texas
Default Should I get a tune-up?

Currently I can get about 21 mpg on a good week. The car is very sluggish though. My best 1/4 has been 16.4 with some mods. The car has about 250k on it now. I've had it since 216ish. Its had a recent timing belt change and I've changed all the fluids. What should I do to make it back to factory specs? And where is that DIY of changin the plugs on the 2jz? I cant find it anywhere.
Reply
Old Jan 25, 2006 | 01:15 PM
  #2  
VJ RC51's Avatar
VJ RC51
Lexus Champion
 
Joined: May 2005
Posts: 1,973
Likes: 0
From: Central FL
Default

21mpg is very good! I wouldnt mess with that!
Reply
Old Jan 25, 2006 | 10:34 PM
  #3  
exarus's Avatar
exarus
Driver School Candidate
 
Joined: Dec 2005
Posts: 36
Likes: 0
From: CO
Default

Originally Posted by VJ RC51
21mpg is very good! I wouldnt mess with that!
How do you drive your SC? I accelerate pretty gradually, rarely blasting off the line, and I get 25-26 mpg. 97' SC300 68k miles.
Reply
Old Jan 25, 2006 | 10:40 PM
  #4  
RaynArt's Avatar
RaynArt
Lexus Test Driver
 
Joined: Sep 2002
Posts: 1,298
Likes: 1
From: Illinois
Default

now i feel bad. im avg'ing out 17-18mpg 95% city driving.

1995 sc300
135k miles
Reply
Old Jan 26, 2006 | 08:09 AM
  #5  
DryBlaze's Avatar
DryBlaze
Lexus Test Driver
 
Joined: Aug 2005
Posts: 1,438
Likes: 1
From: IL
Default

Originally Posted by RaynArt
now i feel bad. im avg'ing out 17-18mpg 95% city driving.

1995 sc300
135k miles
I get about the same but im 95% highway driving. My car is a 92 SC3 with 116k miles.
Reply
Old Jan 26, 2006 | 10:46 AM
  #6  
VJ RC51's Avatar
VJ RC51
Lexus Champion
 
Joined: May 2005
Posts: 1,973
Likes: 0
From: Central FL
Default

I average 85mph on the local highways and not very hard acceleration at stop lights.. 21ish mpg with the 1jzgte. If i go 65-70 on the highway, i can get better.
Reply
Old Jan 26, 2006 | 11:32 AM
  #7  
ATL-SC's Avatar
ATL-SC
Lead Lap
 
Joined: Apr 2005
Posts: 444
Likes: 0
From: GA
Default

i get 18.6 around town and 26-27 on the highway, 25 w/o cruise controle
Reply
Old Jan 26, 2006 | 11:53 AM
  #8  
lexsc492's Avatar
lexsc492
Pole Position
 
Joined: Mar 2005
Posts: 335
Likes: 1
From: PA
Default

what exactly is involved in a tune up
Reply
Old Jan 26, 2006 | 12:07 PM
  #9  
indypwr's Avatar
indypwr
Pole Position
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Mar 2002
Posts: 3,462
Likes: 2
From: California
Default

changing plugs is not very easy to do. you will need to take out the upper plenum to
get access to nbrs 3, 4 and 5 plugs.
Reply
Old Jan 26, 2006 | 02:13 PM
  #10  
RaynArt's Avatar
RaynArt
Lexus Test Driver
 
Joined: Sep 2002
Posts: 1,298
Likes: 1
From: Illinois
Default

clean your throttle body while your at it since thatll come off anyway.

plugs, wires, rotor/cap, timing belt, w. pump, serpentine belt, and i think thats it? thats all the stuff i changed when i did my tune up. and tightened up the throttle cable a bit.

edit: i just notice you drive a 400, im guessing its easier to change plugs on it and not sure exactly where the throttle body is.
Reply
Old Jan 26, 2006 | 02:47 PM
  #11  
lexsc492's Avatar
lexsc492
Pole Position
 
Joined: Mar 2005
Posts: 335
Likes: 1
From: PA
Default

rotor/cap= is that the disrtibuter?

what is the cost around to get a tune-up... myself or mechanic?
Reply
Old Jan 26, 2006 | 03:57 PM
  #12  
RaynArt's Avatar
RaynArt
Lexus Test Driver
 
Joined: Sep 2002
Posts: 1,298
Likes: 1
From: Illinois
Default

roughly 340? about in parts. could be a little more since i remember buying misc parts/access. i didn't really need but since i was buying car parts anyway labor was $60 and a pizza since i knew the guys.
Reply
Old Jan 26, 2006 | 08:51 PM
  #13  
LeXuSrAcIn's Avatar
LeXuSrAcIn
Thread Starter
Lexus Test Driver
 
Joined: Apr 2004
Posts: 1,231
Likes: 0
From: Texas
Default

Thanks for jackin my thread

Anyways does anyone have the writeup?
Reply
Old Jan 28, 2006 | 09:31 AM
  #14  
LeXuSrAcIn's Avatar
LeXuSrAcIn
Thread Starter
Lexus Test Driver
 
Joined: Apr 2004
Posts: 1,231
Likes: 0
From: Texas
Default

Also, does anyone know if I can use the same caps, rotors, wires, and plugs on a 1jz?
Reply
Old Feb 1, 2006 | 10:28 AM
  #15  
dean s's Avatar
dean s
Driver
 
Joined: Nov 2003
Posts: 172
Likes: 0
From: Washington
Default

remember you'll need 2 dist.caps on a sc4 , and get a good set of wires.I've heard through some threads here that it is quite common to get a bad wire in the set exp. with the cheaper plug wires.
Reply



All times are GMT -7. The time now is 03:57 AM.