I'm new to the group and apologize if this is a tired topic, but
couldn't find it in a search of old posts. I have a 2005 Tacoma, 4
cyl. 5 spd. It idles at 2000 rpm for over a minute on a cold start.
It overpowers the brakes and digs holes in my gravel driveway unless I
ride the clutch. At work, idling in the parking lot, it quickly hits
2000 rpm in gear, which makes it buck. In general, it acts like a 1964
Dodge Dart with a poorly adjusted automatic choke. There are obviously
driving techniques that can deal with these problems, like riding the
clutch (which makes all the neighborhood dogs bark) or just waiting for
it to slow down, but why should I have do do that with a brand new
truck?. The dealer says that Toyota likes their new engines to "spin"
when they're cold, for longer life, and that this behavior is
programmed into the computer and can't be adjusted, and if you
over-ride it somehow, the check engine light will come on. My wife's
2003 Camry is perfectly behaved hot or cold, as was my beloved '92
pickup. Is there any solution to this, other than hoping Toyota gets a
lot of complaints and comes out with a service bulletin and a new chip?
That behavior is normal. The reason is to bring the engine up to operating
temperature as quickly as possible, reducing emissions. I think the reason
you find your wifes camry easier to handle is the fact that is (probably)
an automatic and produces less torque than your tacoma. I wouldn't hold my
breath on a fix.
Temujin wrote:[color=blue]
> I'm new to the group and apologize if this is a tired topic, but
> couldn't find it in a search of old posts. I have a 2005 Tacoma, 4
> cyl. 5 spd. It idles at 2000 rpm for over a minute on a cold start.
> It overpowers the brakes and digs holes in my gravel driveway unless I
> ride the clutch. At work, idling in the parking lot, it quickly hits
> 2000 rpm in gear, which makes it buck.[/color]
Try the V6!
The RPMs are normal, emission related, and not limited to Toyota. My
neighbor's 2005 Ram does the same thing. FWIW, I either hold the clutch
in or take it out of gear for a minute or so, and the RPM drops to 1400,
or so.
I usually only drive my truck 3 days a week or so. The other morning,
after three days off in 9F weather, it gladly dropped to 1400 after a
minute or so.
Since it's not broken, it isn't going to get fixed. Simply learn to
give it a minute before to take off from totally cold starts.
On Wed, 15 Feb 2006 12:19:26 GMT, B a r r y
<keep_it_in_the_newsgroup_please@thankyou.com> wrote:
[color=blue]
>Temujin wrote:[color=green]
>> I'm new to the group and apologize if this is a tired topic, but
>> couldn't find it in a search of old posts. I have a 2005 Tacoma, 4
>> cyl. 5 spd. It idles at 2000 rpm for over a minute on a cold start.
>> It overpowers the brakes and digs holes in my gravel driveway unless I
>> ride the clutch. At work, idling in the parking lot, it quickly hits
>> 2000 rpm in gear, which makes it buck.[/color]
>
>Try the V6!
>
>The RPMs are normal, emission related, and not limited to Toyota. My
>neighbor's 2005 Ram does the same thing. FWIW, I either hold the clutch
>in or take it out of gear for a minute or so, and the RPM drops to 1400,
>or so.
>
>I usually only drive my truck 3 days a week or so. The other morning,
>after three days off in 9F weather, it gladly dropped to 1400 after a
>minute or so.
>
>Since it's not broken, it isn't going to get fixed. Simply learn to
>give it a minute before to take off from totally cold starts.[/color]
Maybe it is 'normal', but my son's new stick 2006 Corolla does not do
that....
On Wed, 15 Feb 2006 13:12:39 GMT, B a r r y
<keep_it_in_the_newsgroup_please@thankyou.com> wrote:
[color=blue]
>Scott in Florida wrote:
>[color=green]
>>
>> Maybe it is 'normal', but my son's new stick 2006 Corolla does not do
>> that....[/color]
>
>
>I didn't know the Corolla and Tacoma shared an engine.[/color]
It does not.
Comments were being thrown around that indicated that it was normal
for cars/trucks to do this for emission reduction.
Scott in Florida wrote:[color=blue]
>
> Comments were being thrown around that indicated that it was normal
> for cars/trucks to do this for emission reduction.[/color]
No, comments were being thrown around that it is normal for CERTAIN
vehicles to do this.
Since Tacomas, Dodge Rams, and Corollas are all designed with different
goals, I don't see it all that unusual that then engines behave
differently under certain circumstances.
On Wed, 15 Feb 2006 14:18:14 GMT, B a r r y
<keep_it_in_the_newsgroup_please@thankyou.com> wrote:
[color=blue]
>Scott in Florida wrote:[color=green]
>>
>> Comments were being thrown around that indicated that it was normal
>> for cars/trucks to do this for emission reduction.[/color]
>
>No, comments were being thrown around that it is normal for CERTAIN
>vehicles to do this.
>
>Since Tacomas, Dodge Rams, and Corollas are all designed with different
>goals, I don't see it all that unusual that then engines behave
>differently under certain circumstances.
>
>[/color]
I see no reason to rev an engine to that high a number....even for
'emission reasons.
It is also dangerous.
I suspect if Toyota can change the Corolla design (as I recall Phillip
has a 2003 Corolla that he 'fixed' cause it revved high at
startup)....then they can do it for all their cars.
On Wed, 15 Feb 2006 15:03:48 GMT, B a r r y
<keep_it_in_the_newsgroup_please@thankyou.com> wrote:
[color=blue]
>Scott in Florida wrote:[color=green]
>>
>> I see no reason to rev an engine to that high a number....even for
>> 'emission reasons.[/color]
>
>Oh, in that case, I'm sure the Toyota engineering department is all over
>it. <G>[/color]
Thanks for your input, guys. It was nice to have a chance to rant. It
seems to me that the standard recommendation to drive off immediately
after a cold start does more to bring the engine up to operating
temperature quickly than a high idle speed, which only helps if you
ignore the recommendation to drive off immediately. In any case, why
would you make the engine undrivable UNLESS you let it idle for a
couple of minutes? Oh, forget it. I'm just a grumpy old man. Maybe
I'll try to find the guy I sold my '92 to.
Temujin wrote:[color=blue]
> In any case, why
> would you make the engine undrivable UNLESS you let it idle for a
> couple of minutes?[/color]
FWIW, mine is more like "minute", not "minute_s_", so maybe you should
have it looked at.
As I recall, it may have taken longer to drop when the truck was brand
new. Now I've got about 7300 miles, and it seems shorter, but I may be
used to it.
I double checked my truck, a 4.0L 6 sp manual V6 with 7400 miles, this
morning.
It's been sitting outside for three days, this morning's ambient
temperature was 19F. When I cranked it up, the truck went to about 1800
RPM. The RPM dropped to 1400 within about 10 seconds, and 1200 in less
than a minute. 1/4 mile away, at the first stop sign, she was idling @
about 7-800 RPM.
I seem to remember it staying closer to 1800 for much longer when it was
brand new. So if your truck is very new, maybe you should give it some
time. Otherwise, I'd have it looked at.
Also remember that the V6 may behave differently than the I4. I don't
think either engine was new for '05.
Barry,
Mine has about 10,000 miles, and stays at 2000 rpm for at least a
minute, then gradually slows. I have a pretty long uphill gravel
driveway, and if I ride the brakes, the rear wheels are digging holes
all the way up. I say a minute, but I haven't actually timed it. I'll
try that.
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