Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

high idle...... help!

Thread Tools
 
Search this Thread
 
Old Dec 16, 2002 | 11:33 PM
  #1  
quicklil87lt's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2002
Posts: 93
Likes: 0
From: illinois
high idle...... help!

my car idles high. even when the motor is at running temp. i can drive around for an hour and then park and the damn thing still idles at just under 1500 . i'd like it to idle alot lower. i have a rochester q-jet. can anyone tell me what i need to do to get a reasonable idle?
thank you forthe help
Reply
Old Dec 17, 2002 | 09:08 AM
  #2  
Jaboski's Avatar
Junior Member
 
Joined: Sep 2002
Posts: 80
Likes: 0
From: Philadelphia, Pennsylvania
Car: 91 Firebird
Engine: 305
Transmission: T5
Axle/Gears: 3.08
Did you adjust the screw idle screw? Also, i just replaced my qjet, and i had idle problems, it ended up being a celanoid with the air conditioner or something like that. Use the adjust screw on the driver side near the linkage.
Reply
Old Dec 19, 2002 | 05:33 PM
  #3  
The Chad's Avatar
Member
 
Joined: Mar 2002
Posts: 161
Likes: 0
From: anoka mn
Car: 84 berlinetta
Engine: lg4
Transmission: 700 r4
try tigtening down your carb. you could be sucking air.
Reply
Old Dec 19, 2002 | 10:59 PM
  #4  
SuperTrans Man's Avatar
Member
 
Joined: Oct 2002
Posts: 437
Likes: 0
From: Huntington beach, CA
Car: Camaro
Engine: 5.slow
Transmission: 5 speed manual
Originally posted by Jaboski
i just replaced my qjet, and i had idle problems, it ended up being a celanoid with the air conditioner or something like that.
urs might be having the same problem im having when u put it in park after a hard day work and its idleing that high turn on the air conditioning then turn it off if ur car is like mine it will drop to sain levels of rpmage
Reply
Old Dec 20, 2002 | 07:05 PM
  #5  
W72's Avatar
W72
Member
20 Year Member
iTrader: (9)
 
Joined: Dec 2002
Posts: 273
Likes: 3
From: Northwestern,PA
Car: 89 GTA & 92 T/A covertible
Engine: 408LS-SC, 355 TPI
Transmission: 4L80e, 700r4
Axle/Gears: 12 bolt, 9 bolt
Are we talking about CC Q-jet? or an earlier Q-jet?
If it's an older one then I suspect "nozzle drip" which can be caused by a vacuum leak or too much advance on the distributor.
If it's an ECM controlled carb then I'd replace the TPS sensor or at least check to see what codes have been set.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sp8ty
South East Region
5
Sep 24, 2018 03:55 PM
sp8ty
Exterior Parts Wanted
3
Oct 23, 2015 08:35 AM
oil pan 4
Fabrication
2
Oct 6, 2015 11:56 AM
Spyder_TheGamer
V6
5
Oct 2, 2015 12:25 PM
Zell1luk
TPI
0
Sep 29, 2015 10:36 AM




All times are GMT -5. The time now is 05:51 PM.