Idle How do I adjust the idle on a 95 buick century 3.1 liter v6? What do I have to know about adjusting it?

Idle adjustment procedure - Ford Explorer and Ranger Forums ...

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Mar 25, 2015 - 19 posts - ‎11 authors Idle adjustment procedure Under the Hood. ... Below are the stock idle speeds (RPM) for my 2000 SOHC V6 with strategy CDE4. ..... when you apply the throttle or it could be too much base timing causing a huge misfire. High Idle Blues 1994 4.0
19 posts
Dec 8, 2009
HIGH IDLE in Park!!!
7 posts
Nov 28, 2003
High idle in park 1,500rpm and 900rpm stopped in drive ...
10 posts
Nov 12, 2003
High Idle Problem .. 95, 4.0L, OHV
19 posts
Apr 30, 2003
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Not a mechanic but have heard similar from older cars and been told that the tappets need adjusting.

The idler arm would be in the steering section for a car with a steering gearbox.
Your problem may be a vac leak, or the idle air control valve is sticking open. The idle speed is controlled by the engine computer, so there are no adjustments.

There should be an idle control motor on the side of the carb. The computer controls idle speed by moving the stop on that control motor. The stop is adjustable and there may also be a base idle adjusting screw near the control motor.

Try this: with car running, disconnect the tps wiring harness. After a few seconds, reconnect it. Once it's reconnect, the idle should adjust itself.

look up your timing setting and use a timming light to set the timming.

Normally you would use a scanner - you might be able to use a meter to measure the resistance in the sensor, I think it should be near zero when the throttle plate is closed.

must have a adjuster on it somewhere i would have thought ,but as iam in spain and never worked on one i have no idea where it is ,as its an old car the adjuster is most likely on the alternator or the power steering

U are telling me what you did as far as a repair goes but you are not clearly stating the symptoms or the actual problem, please explain what is going on here and when it happens, cold engine etc, as much detail as possible, and you should never adjust the idle speed, have u cleaned the throttle valve and the upper intake?

Have you had your mass air meter checked or replaced? This is the unit attached to the air intake hose behind your air filter. It senses the air temperature, speed, density, etc... and adjusts the fuel/air ratio to keep the vehicle running at "peak" performance. Also, check your TPS (throttle positioning sensor) it can also cause the problem you speak of. The TPS adjusts your engine speed/idle etc. and also compensates for hot/cold changes etc. This is roughly a $35.00 part and in most cases usually an easy fix.