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07-15-05, 05:30 PM
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#1
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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DIY: A/C compressor removal and installation
Well, I could have paid someone to do this for me, but I figured I'd better DIY so I could share pics and info for anyone wanting to do this. (the things I do for you)
So here's a short writeup with pics.
1- remove the battery and tray
2- remove the main belt from the engine by loosening the tensioner.
3- disconnect the main A/C electrical harness and 2 coolant lines
4- go under the car and remove the ground wire bolt and harness
5- (optional) remove the oil filter (you'll thank me later when you go to remove the lower bolt)
6- remove the 3 bolts that hold the compressor in. I prefer to do it from the top front, then top back, then bottom.
7- slide the A/C compressor forward and rotate it for best maneuverability while pulling it out the top of the engine bay.
*Note- there is a small "z" bracket on the ground cable bolt that connects it to the compressor. Make sure you re-install it.
Reverse the directions for re-installation.
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
Last edited by Killa-Hz; 07-15-05 at 05:35 PM.
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07-15-05, 05:32 PM
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#2
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-15-05, 05:33 PM
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#3
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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This is for an SC400, but hopefully the 300 will not differ much, or any.
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-15-05, 09:23 PM
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#4
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Lexus Champion
Join Date: May 2003
Location: Florida
Posts: 1,938
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Nice writeup, but please dont tell me I see a Fram oil filter in there? For shame OLT, for shame haha
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07-15-05, 09:24 PM
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#5
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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Quote:
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Originally Posted by /Aerostar\
Nice writeup, but please dont tell me I see a Fram oil filter in there? For shame OLT, for shame haha
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Yup  I did this on my hooptie. It's just used for testing nowadays. It logged 45 miles in the last 5 months I drive my sandstone one as a daily.
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-15-05, 09:25 PM
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#6
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Lead Lap
Join Date: Jun 2005
Location: Orlando, FL
Posts: 524
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wats wrong with fram? 
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07-15-05, 09:34 PM
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#7
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Lexus Test Driver
Join Date: Jul 2005
Location: il
Posts: 1,017
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looks like u missed the part of evac the system.
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07-15-05, 10:21 PM
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#8
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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Nothing had to be done other than what I posted.
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-16-05, 12:09 PM
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#9
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Lexus Test Driver
Join Date: Aug 2004
Location: Tennessee
Posts: 838
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So you just charged it up with some r134a and it's been good as new since?
On my SC3 I can't pressurize the a/c system as much as it should be since by doing that the a/c compressor just engages and then disengages every 10-20sec.
The other thing I've noticed is after a drive at a high rpm for 1-2 min (5000+) or a drive at 85 for awhile I'll smell a burning inside my engine, already replaced the waterpump so I think the compressor clutch/compressor itself has to do with that. What caused you to replace yours, just loss of r134a?
__________________
1999 LS 400 - 123k
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07-16-05, 12:51 PM
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#10
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Driver School Candidate
Join Date: Mar 2005
Location: FL
Posts: 22
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Whats the seceret to getting to the rear upper bolt? My cars been apart for ever because I can't get the AC compressor off to change the water pump.
I boght a 14mm (built-in) universal socket, but have not had time to use it. I can't seem to get a socket up there. Are you accessing from the top or bottom?
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07-16-05, 01:05 PM
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#11
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Lexus Test Driver
Join Date: Aug 2004
Location: Tennessee
Posts: 838
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Do you have a 400 or 300, because on the 300 you don't have to take off the a/c compressor to get to the waterpump.
__________________
1999 LS 400 - 123k
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07-16-05, 02:23 PM
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#12
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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Quote:
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Originally Posted by TMaxxTim
So you just charged it up with some r134a and it's been good as new since?
On my SC3 I can't pressurize the a/c system as much as it should be since by doing that the a/c compressor just engages and then disengages every 10-20sec.
The other thing I've noticed is after a drive at a high rpm for 1-2 min (5000+) or a drive at 85 for awhile I'll smell a burning inside my engine, already replaced the waterpump so I think the compressor clutch/compressor itself has to do with that. What caused you to replace yours, just loss of r134a?
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No way dude. I can't stand 134. Doesn't blow cold enough. I use only good old ice cold r12 freon. $65 a pound and worth every dime. I just had all 5 cars charged up with 3 lbs per car...... guess what that cost. 
My local Maxi muffler charges r12 systems
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-16-05, 02:26 PM
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#13
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Lexus Fanatic
2002 Lexus IS
My Garage
Join Date: Feb 2003
Location: 1993
Posts: 29,753
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Quote:
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Originally Posted by FloridaSC
Whats the seceret to getting to the rear upper bolt? My cars been apart for ever because I can't get the AC compressor off to change the water pump.
I boght a 14mm (built-in) universal socket, but have not had time to use it. I can't seem to get a socket up there. Are you accessing from the top or bottom?
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This should be good avice on both the 300 and 400. If you have a 4 inch extension it will get in there, but not bump the frame on the ratchet end.
__________________
'99 Ranger, 92 SC400, and '02 IS300
You know you're getting old when 20 years later your devil worshipping music idols start talking about Starbucks and Jesus.
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07-16-05, 05:20 PM
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#14
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Lead Lap
Join Date: May 2004
Location: Florida
Posts: 456
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OLT - if you get an under-engine pan your whole engine bay will stay much cleaner - IMHO.
__________________
1995 SC400 Black On Black - Magnaflow SS X-Pipe, Mandrel Bent Dual 2.25" out to 14851 Race Series Magnaflows.
1996 LX450 - Long Live the 80 Series! Comfortable and Capable.
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07-16-05, 06:04 PM
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#15
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Lexus Champion
Join Date: Nov 2004
Location: Arizona
Posts: 1,712
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Doesn't look much like the 300. Good thing you didn't get it from me.
__________________
2001 GS430
No modifications necessary...yet
Many of the truths we cling to depend greatly on our own point of view. -Ben Kenobi
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Tags
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10pa20c, 400, ac, air, car, compressor, conditioning, diy, installation, lexus, ls, oil, put, removal, sc, sc400  |
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