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2005 Tacoma 4 cyl. high idle question
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CarGuru > Toyota > 2005 Tacoma 4 cyl. high idle question 16 October 2006 18:04:15

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2005 Tacoma 4 cyl. high idle question

Strmn567@aol.com 19 April 2005 03:02:06
 My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This
seems way too high to me--anybody else have this? thanx in advance!


Mike

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S.Lewis 19 April 2005 05:23:30 permanent link ]
 
<Strmn567@aol.com> wrote in message
news:1113865326.318­857.314660@f14g2000c­wb.googlegroups.com.­..> My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This> seems way too high to me--anybody else have this? thanx in advance!>
Mike>


Let me describe it to you: (depending on how cool your region is as well as
the season) you start it and it idles high for 2-5 mins, then idles down to
a 'normal' level unless you've got the defrost on - which will cause the
engine to periodically 'surge/rev' systematically.

Sound familiar? Yours sounds normal unless I've missed something.


Stew
'00 Tacoma PreRunner / 2.7 4cyl


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Strmn567@aol.com 19 April 2005 08:13:57 permanent link ]
 Stew-thanx for reply! Yeah it idle's back down as it should-It just
seems like the high idle setting at startup is excessive -of course
I'm used to my old also--Ha! Thanx!


Mike

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Paulie 19 April 2005 09:28:08 permanent link ]
 Strmn567@aol.com wrote:> My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This> seems way too high to me--anybody else have this? thanx in advance!

I think it's normal, mine does it too. I seem to remember reading
something about a fresh air pump that runs for 90 seconds after a cold
start.

I'm guessing it's something to do with emissions requirements and the
rich fuel mixture needed for a cold engine start.
Paulie
--
BS #77; LFS #31; SENS; IBA #7475; MISFIT
Blow "chunks" to reply
web site "http://webpages.ch­arter.net/fltpaulie"­
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B a r r y 19 April 2005 15:34:03 permanent link ]
 Strmn567@aol.com wrote:> My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This> seems way too high to me--anybody else have this? thanx in advance!


My '05 4.0L Tacoma and my 4 cylinder '01 Subaru Outback do exactly the
same thing. My neighbor's Hemi Ram sounds as if it also starts like this.

I'll let it run for 10-15 seconds, tap the gas pedal, which drops the
RPM's, depress the clutch, and slide it into gear.

If you didn't touch a thing, both will automatically drop the RPM's as
the engine starts to warm up.

Does the manual mention high or cold idle?

Barry
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Strmn567@aol.com 20 April 2005 07:53:27 permanent link ]
 Thanx for the replys everybody! Barry, the manual doesn't say anything
about the high idle (that I can find anyway). It is probably normal--it
just bothers me that the engine would rev that high when it's cold and
no oil pressure. It comes back down to normal shortly. Hope this one is
a good as my last one (87 22r--271,000 miles and still running). Thanx
again guys

Mike

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B a r r y 20 April 2005 15:12:01 permanent link ]
 Strmn567@aol.com wrote:> Thanx for the replys everybody! Barry, the manual doesn't say anything> about the high idle (that I can find anyway).

I don't drive my Taco to work, so I couldn't check myself.
It comes back down to normal shortly. Hope this one is> a good as my last one (87 22r--271,000 miles and still running).

I had an '85 do 300k. I've got the same hope!

Barry
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Bob Palmer 22 April 2005 01:03:39 permanent link ]
 
<Strmn567@aol.com> wrote in message
news:1113865326.318­857.314660@f14g2000c­wb.googlegroups.com.­..> My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This> seems way too high to me--anybody else have this? thanx in advance!>
Mike>


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Bob Palmer 22 April 2005 01:05:11 permanent link ]
 My 2005 Tacoma does the same thing. I did ask the dealer and they said it is
normal. They also said nothing could be done about it because it is
controlled by the computer chip. - Bob
<Strmn567@aol.com> wrote in message
news:1113865326.318­857.314660@f14g2000c­wb.googlegroups.com.­..> My 2005 Tacoma (4cyl.)idles at 2200 rpm on 1st start (when cold). This> seems way too high to me--anybody else have this? thanx in advance!>
Mike>


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Guest 16 October 2006 18:04:15 permanent link ]
 I have a '06 Tacoma and experienced the same high rev cituation when the engine is cold. I, too, thought it was excessive, but was assured by the dealer that all was OK. I still don't like that high rev on a cold engine, but I guess we'll have to live with it.

Rick
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CarGuru > Toyota > 2005 Tacoma 4 cyl. high idle question 16 October 2006 18:04:15

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