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

Car shuts off when i turn off the A/C

Thread Tools
 
Search this Thread
 
Old 07-20-14, 09:12 AM
  #1  
amckoy96
Driver School Candidate
Thread Starter
iTrader: (1)
 
amckoy96's Avatar
 
Join Date: Nov 2013
Location: FL
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Default Car shuts off when i turn off the A/C

Car shuts off whenever i turn off the A/C.Anyone ever had this problem before?
Old 07-20-14, 10:35 AM
  #2  
BAD954BOI
Lexus Champion
iTrader: (5)
 
BAD954BOI's Avatar
 
Join Date: Jun 2009
Location: fl
Posts: 1,751
Likes: 0
Received 1 Like on 1 Post
Default

sounds like you have a short... is it a stumble to a engine shut off or is it instantly?
Old 07-20-14, 12:31 PM
  #3  
amckoy96
Driver School Candidate
Thread Starter
iTrader: (1)
 
amckoy96's Avatar
 
Join Date: Nov 2013
Location: FL
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Default

It happens when i slow down to a stop.If im on the highway at cruising speed and shuts off the A/C,it will continue to run,but if i slow down to like 10-5 mph it shuts off.I put it in neutral turn the key and starts rite back up.
Old 07-21-14, 02:48 AM
  #4  
Powerline
Driver
iTrader: (1)
 
Powerline's Avatar
 
Join Date: Sep 2008
Location: Nv
Posts: 139
Likes: 0
Received 1 Like on 1 Post
Default

My car does the same thing! I asked around in this forum but never really got repiles.
Old 07-21-14, 07:58 AM
  #5  
Tabaka
Lexus Champion
iTrader: (8)
 
Tabaka's Avatar
 
Join Date: Mar 2010
Location: Dale City, VA
Posts: 3,811
Likes: 0
Received 6 Likes on 6 Posts
Default

Sounds like the IACV or even the MAF is shot. The IACV controls your idle speed. When things are turned on like your lights, radio, A/C, etc, the throttle opens a touch more to allow air. If the accessories are turned off, it closes up a touch. If your IACV is dirty or even malfunctioning, it literally chokes your car. You can clean the IACV by removing it, cleaning with Q-Tips and rags, then reinstall it. You might want to clean your TB a bit as well. Now, if it's your MAF, the car will die in a similar fashion. However, a MAF error will create a CEL light. I would check your codes at that point to see what it's telling you. I don't know what year your car is, but you can hook up a OBD2 scanner on vehicles 96+. If it's a 95 and older, you can actually get the codes with a paper clip. Do a search on these forums for the appropriate way to read codes on an OBD1 car. If you need help locating your IACV, let me know.

-Tab
Old 07-24-14, 04:40 PM
  #6  
Powerline
Driver
iTrader: (1)
 
Powerline's Avatar
 
Join Date: Sep 2008
Location: Nv
Posts: 139
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Tabaka
Sounds like the IACV or even the MAF is shot. The IACV controls your idle speed. When things are turned on like your lights, radio, A/C, etc, the throttle opens a touch more to allow air. If the accessories are turned off, it closes up a touch. If your IACV is dirty or even malfunctioning, it literally chokes your car. You can clean the IACV by removing it, cleaning with Q-Tips and rags, then reinstall it. You might want to clean your TB a bit as well. Now, if it's your MAF, the car will die in a similar fashion. However, a MAF error will create a CEL light. I would check your codes at that point to see what it's telling you. I don't know what year your car is, but you can hook up a OBD2 scanner on vehicles 96+. If it's a 95 and older, you can actually get the codes with a paper clip. Do a search on these forums for the appropriate way to read codes on an OBD1 car. If you need help locating your IACV, let me know.

-Tab
Sweet I going to try this. Hopefully it works!
Old 07-24-14, 09:18 PM
  #7  
bigwes
Lexus Test Driver
 
bigwes's Avatar
 
Join Date: Apr 2012
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

my car does the same thing. so i jus leave my AC on the entire time that i drive. i prolly need to change the iacv as well but it doesnt seem easy to do with the 95 model compared to the earlier models
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rlx101
ES - 1st to 4th Gen (1990-2006)
31
07-15-19 04:30 AM
MuGGzyx
SC- 1st Gen (1992-2000)
18
05-04-11 07:59 AM
LittleMous
LS - 1st and 2nd Gen (1990-2000)
25
02-25-08 12:40 PM
thisguy_06
RX - 1st Gen (1999-2003)
3
10-01-07 02:42 PM
99LS400BLK
LS - 1st and 2nd Gen (1990-2000)
7
06-13-06 07:26 PM



Quick Reply: Car shuts off when i turn off the A/C



All times are GMT -7. The time now is 03:52 PM.