ES - 1st to 4th Gen (1990-2006) Forum for all 1990 - 2006 ES300 and ES330 models. ES250 topics go here as well.

engine bucking in the mourning

Thread Tools
 
Search this Thread
 
Old 01-18-06, 08:11 PM
  #1  
ynvme
Driver School Candidate
Thread Starter
 
ynvme's Avatar
 
Join Date: Jan 2006
Location: FL
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
Default engine bucking in the mourning

Lately when I first start my car in the mourning and put it in drive,The engine bucks and jerks for about 20 seconds and then smoothes out and is fine the rest of the day. I am not sure if it is due to the cold weather or not , does anyone know what would cause this?
Old 01-18-06, 08:12 PM
  #2  
Pheonix
Lexus Champion
 
Pheonix's Avatar
 
Join Date: Apr 2005
Location: AL
Posts: 2,496
Likes: 0
Received 6 Likes on 6 Posts
Cool

Clean your IAC valve, and the rest of the throttlebody for that matter.
Old 01-18-06, 08:39 PM
  #3  
mcelligott
Lexus Champion
 
mcelligott's Avatar
 
Join Date: Jun 2001
Location: Ohio
Posts: 1,611
Likes: 0
Received 4 Likes on 4 Posts
Default

Change up those spark plugs too!
Old 01-18-06, 09:49 PM
  #4  
Pheonix
Lexus Champion
 
Pheonix's Avatar
 
Join Date: Apr 2005
Location: AL
Posts: 2,496
Likes: 0
Received 6 Likes on 6 Posts
Cool

Make sure you turbo up-pipe isn't leaking!
Old 01-20-06, 11:12 AM
  #5  
MoreMGD32
Pole Position
iTrader: (1)
 
MoreMGD32's Avatar
 
Join Date: Jun 2004
Location: Georgia
Posts: 391
Likes: 0
Received 0 Likes on 0 Posts
Default

what does IAC stand for? im getting the same sensation, however my engine light came on and its giving a fuel trim code and i cannot for the life of me figure out the problem, i was told its a vacume issue...any imput?
Old 01-20-06, 11:23 AM
  #6  
Pheonix
Lexus Champion
 
Pheonix's Avatar
 
Join Date: Apr 2005
Location: AL
Posts: 2,496
Likes: 0
Received 6 Likes on 6 Posts
Cool

Idle Air Control / Idle Speed Control, Valve

MoreMGD32
If a vacuum leak has been confirmed, by either finding it, or hooking a vacuum gauge to the intake manifold - Fix the vacuum leak. Otherwise start another thread & post the code & symptoms, we'll help ya!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
edge20
LS - 1st and 2nd Gen (1990-2000)
14
10-12-15 05:06 AM
Lexus082
Performance & Maintenance
3
06-04-12 09:26 PM
m1k3yg
GS - 1st Gen (1993-1997)
11
04-19-12 08:20 PM
dcaldwel1
RX - 1st Gen (1999-2003)
3
09-07-11 06:43 AM
fowcbler
Performance & Maintenance
13
04-18-08 09:48 AM



Quick Reply: engine bucking in the mourning



All times are GMT -7. The time now is 11:23 AM.