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Old 02-22-2007, 11:10 AM   #1 (permalink)
nospampls2002@yahoo.com
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Re: high idle

badgolferman wrote:[color=blue]
> They told me they cleaned the throttle body. Is 1000 RPM at idle
> normal?[/color]
==
Unless the specification has changed, it used to be 750 rpm +/- 50.
Sounds like you need to take it back.
Again, unless newer models are different, the idle speed is computer
controlled, therefore not adjustable.
If they removed the throttle body for cleaning, it is possible the
throttle position sensor was adjusted. The TPS has an "IDL" contact
and the adjustment procedure calls for measuring in thousandths of an
inch with a thickness gauge simultaneously watching for electrical
continuity at the appropriate terminals.
Sorry, forgotten the proper name, but there is also a throttle
position stop, with a vacuum operated plunger that should be adjusted
correctly when the throttle body is reinstalled that could affect the
idle speed.
My understanding is that throttle body cleaning at the dealer can
involve removing the throttle body. The Factory Service manual has all
the adjustment procedures described in connection with throttle body
removal, so it is possible that some of the procedures performed
improperly are causing the high idle.
If you follow step by step, none are particularly difficult, so one
wouldn't expect a problem in this area, but then again the idle speed
is electronically controlled, so it shouldn't be changing either.

 
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Old 02-22-2007, 11:23 AM   #2 (permalink)
Ray O
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Re: high idle


<nospampls2002@yahoo.com> wrote in message
news:1172164209.337769.152550@h3g2000cwc.googlegroups.com...[color=blue]
> badgolferman wrote:[color=green]
>> They told me they cleaned the throttle body. Is 1000 RPM at idle
>> normal?[/color]
> ==
> Unless the specification has changed, it used to be 750 rpm +/- 50.
> Sounds like you need to take it back.
> Again, unless newer models are different, the idle speed is computer
> controlled, therefore not adjustable.
> If they removed the throttle body for cleaning, it is possible the
> throttle position sensor was adjusted. The TPS has an "IDL" contact
> and the adjustment procedure calls for measuring in thousandths of an
> inch with a thickness gauge simultaneously watching for electrical
> continuity at the appropriate terminals.
> Sorry, forgotten the proper name, but there is also a throttle
> position stop, with a vacuum operated plunger that should be adjusted
> correctly when the throttle body is reinstalled that could affect the
> idle speed.
> My understanding is that throttle body cleaning at the dealer can
> involve removing the throttle body. The Factory Service manual has all
> the adjustment procedures described in connection with throttle body
> removal, so it is possible that some of the procedures performed
> improperly are causing the high idle.
> If you follow step by step, none are particularly difficult, so one
> wouldn't expect a problem in this area, but then again the idle speed
> is electronically controlled, so it shouldn't be changing either.
>[/color]

Most dealer technicians just remove the plastic snorkel from the throttle
body and clean the throttle body in place. I have never seen a dealership
technician actually remove the throttle body to clean it.
--

Ray O
(correct punctuation to reply)


 
Old 02-22-2007, 02:13 PM   #3 (permalink)
Ray O
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Re: high idle


"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
news:xn0f2riiy153ra9000@news.east.cox.net...[color=blue]
> Ray O, 2/22/2007,12:23:45 PM, wrote:
>[color=green]
>>
>> <nospampls2002@yahoo.com> wrote in message
>> news:1172164209.337769.152550@h3g2000cwc.googlegroups.com...[color=darkred]
>> > badgolferman wrote:
>> > > They told me they cleaned the throttle body. Is 1000 RPM at idle
>> > > normal?
>> > ==
>> > Unless the specification has changed, it used to be 750 rpm +/- 50.
>> > Sounds like you need to take it back.
>> > Again, unless newer models are different, the idle speed is computer
>> > controlled, therefore not adjustable.
>> > If they removed the throttle body for cleaning, it is possible the
>> > throttle position sensor was adjusted. The TPS has an "IDL" contact
>> > and the adjustment procedure calls for measuring in thousandths of
>> > an inch with a thickness gauge simultaneously watching for
>> > electrical continuity at the appropriate terminals.
>> > Sorry, forgotten the proper name, but there is also a throttle
>> > position stop, with a vacuum operated plunger that should be
>> > adjusted correctly when the throttle body is reinstalled that could
>> > affect the idle speed.
>> > My understanding is that throttle body cleaning at the dealer can
>> > involve removing the throttle body. The Factory Service manual has
>> > all the adjustment procedures described in connection with throttle
>> > body removal, so it is possible that some of the procedures
>> > performed improperly are causing the high idle.
>> > If you follow step by step, none are particularly difficult, so one
>> > wouldn't expect a problem in this area, but then again the idle
>> > speed is electronically controlled, so it shouldn't be changing
>> > either.
>> >[/color]
>>
>> Most dealer technicians just remove the plastic snorkel from the
>> throttle body and clean the throttle body in place. I have never
>> seen a dealership technician actually remove the throttle body to
>> clean it.[/color]
>
> The Check Engine light came on today. I called back and told them how
> upset I was with this and asked for a loaner car until they fix it.
> They offered to see me first thing tomorrow and work on it. I don't
> know what else to do now but I must drive it this evening to work and
> back. Hopefully the problem won't harm the engine.[/color]

A flashing check engine light would probably ruin the engine, but a light
that is steady probably will not.
--

Ray O
(correct punctuation to reply)


 
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