Re: I question my idle-speed control also

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Re: I question my idle-speed control also Posted by BrooksG (more from BrooksG) on Fri, 13 Sep 2002 15:47:41

In Reply to: I question my idle-speed control also, Aero'ed, Fri, 13 Sep 2002 13:31:21 Members do not see ads below this line. - Help Keep This Site Online - Signup

I mentioned two reasons why there would be less engine braking on an Aero, there is also a third, it is a relatively small engine compared to the size you would have with a normally aspirated engine on a car this size. So you have a small engine with low compression and long gearing.

Now to your current question. When stopped with an auto transmission in gear at this time of the year you would likely have two major loads on the engine, the airconditioning and the torque converter and a few minor loads from the alternator and the water pump, etc. When you let up on the brakes, and get the car rolling, one of the major loads, the load on the torque converter drops substantially. This should allow the idle speed to increase because of the decreased load. I know it would in the pre engine management days when engines had carburators and real distributors. The engine management will try to keep the idle steady but obviously it is only partially successful. Nothing to worry about here.

posted by 12.13.22...

Posts in this Thread:

Brake dust on my 9-5, mre9101, Thu, 12 Sep 2002 16:53:05
- Solution, Lou, Fri, 13 Sep 2002 10:25:12
  - So they fit an Aero too? n/m, bRAD, Fri, 13 Sep 2002 10:30:51
- Re: Brake dust on my 9-5, frank , Thu, 12 Sep 2002 21:22:00
- 9-5 need's more friction?, Aero'ed, Thu, 12 Sep 2002 18:53:17
  - We covered that in NINES!, Stephen Goldberger, Fri, 13 Sep 2002 23:00:06
  - Decelleration, Lou, Fri, 13 Sep 2002 12:02:36
    - auto's to auto's, Aero'ed, Fri, 13 Sep 2002 13:35:23
  - Re: 9-5 need's more friction?, BrooksG, Thu, 12 Sep 2002 19:42:25
    - Re: 9-5 need's more friction?, todd farris, Fri, 13 Sep 2002 16:28:29
      - Re: 9-5 need's more friction?, BrooksG, Fri, 13 Sep 2002 18:38:29
        Re: 9-5 need's more friction?, BrooksG, Fri, 13 Sep 2002 23:19:41
        Re: 9-5 need's more friction?, todd farris, Mon, 16 Sep 2002 11:35:14
    - I question my idle-speed control also, Aero'ed, Fri, 13 Sep 2002 13:31:21
      - Re: I question my idle-speed control also, BrooksG, Fri, 13 Sep 2002 15:47:41 <-- Viewing This Message
- Re: Brake dust: here we go again! :) n/m, AeroLady, Thu, 12 Sep 2002 17:11:10
  - Are You Single?, Pepe, Thu, 12 Sep 2002 18:00:54
    - Great, now folks are trying, Hammer, Fri, 13 Sep 2002 09:33:23
    - Re: Why do you ask? n/m, AeroLady, Thu, 12 Sep 2002 21:20:52
      - Re: Why do you ask? n/m, Pepe, Fri, 13 Sep 2002 11:00:13
        Re: Why do you care?, AeroLady, Fri, 13 Sep 2002 13:06:26
        Re: Why do you care?, Pepe, Fri, 13 Sep 2002 14:23:35
        It's rude to be nosy about a woman's marital status, JimS, Fri, 13 Sep 2002 16:32:06
        Re: It's rude to be nosy about a woman's marital status, Pepe, Fri, 13 Sep 2002 16:44:23
        Re: It's rude to be nosy about a woman's marital status, K.W., Sun, 15 Sep 2002 09:50:10
        The squeaky wheel gets the grease, or..., bRAD, Fri, 13 Sep 2002 17:07:30
- Welcome to 9-5 ownership!, bRAD, Thu, 12 Sep 2002 17:03:44
  - Re: Brake Dust isn't just on 9-5s, AeroJT, Fri, 13 Sep 2002 09:24:24
    - But some cars don't show dust as readily, keeton, Fri, 13 Sep 2002 11:33:42
    - Yes, BMW, MB, Audi have lots of brake dust too, Jason, Fri, 13 Sep 2002 09:57:45

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