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idling problem
idling problem
I have a 2001 Saturn S series. Has 137,000 miles and has been very reliable.
Lately it has had an idling problem.
The idle varies from 800 to 2500 rpms. It changes all the time. It may start
out high, or just change as I drive.
I had it in for some work non related, I mentioned the problem, and they
cleaned out the throttle body. It did not really help.
Any ideas??
Sully
--
Is he
Lonesome
Or just blind--
This guy who drives
So close behind?
Burma-Shave
I have a 2001 Saturn S series. Has 137,000 miles and has been very reliable.
Lately it has had an idling problem.
The idle varies from 800 to 2500 rpms. It changes all the time. It may start
out high, or just change as I drive.
I had it in for some work non related, I mentioned the problem, and they
cleaned out the throttle body. It did not really help.
Any ideas??
Sully
--
Is he
Lonesome
Or just blind--
This guy who drives
So close behind?
Burma-Shave
Re: idling problem
Sully,
Is the very high idle (>2000 RPM) usually when you re-start the vehicle
after it was recently running and the engine is still warm? Have you
noticed a reduction in mileage? Does the engine temperature gauge never go
to where it used to when fully warmed? If any of this sounds familiar, then
I'd suspect the Coolant Temperature Sensor (CTS).
The CTS reports the engine coolant temperature and the computer enriches the
mixture when it is cold. If it enriches the mixture when it is hot (but
being reported as cold by the defective CTS), then it runs richer and idles
faster.
The part costs about $10 at the local auto parts place and takes all of 5
minutes to install yourself with minimal tools. If this does not fix it,
then look for a vacuum leak. Good luck and post what you find for the
benefit of others.
Bob
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
>
Sully,
Is the very high idle (>2000 RPM) usually when you re-start the vehicle
after it was recently running and the engine is still warm? Have you
noticed a reduction in mileage? Does the engine temperature gauge never go
to where it used to when fully warmed? If any of this sounds familiar, then
I'd suspect the Coolant Temperature Sensor (CTS).
The CTS reports the engine coolant temperature and the computer enriches the
mixture when it is cold. If it enriches the mixture when it is hot (but
being reported as cold by the defective CTS), then it runs richer and idles
faster.
The part costs about $10 at the local auto parts place and takes all of 5
minutes to install yourself with minimal tools. If this does not fix it,
then look for a vacuum leak. Good luck and post what you find for the
benefit of others.
Bob
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
>
Re: idling problem
Be examining the pcv line. I'll bet you find it collapsed and/or
deteriorated to the point of having a hole in it.
s
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
>
Be examining the pcv line. I'll bet you find it collapsed and/or
deteriorated to the point of having a hole in it.
s
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
>
Re: idling problem
On Dec 23, 4:12 pm, "Sully" <msul...@tcq,net > wrote:
> I have a 2001 Saturn S series. Has 137,000 miles and has been very reliable.
> Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may start
> out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
If it is idle high, 99% chance it is the CTS.. cheap and easy to
change and the result will be instant. At $12 it's a no brainer. Just
make sure the engine is cool and you open the collant overfill befor
he swap. Swap fast enough and you won't lose any coolant or at least
very little.
Phil
On Dec 23, 4:12 pm, "Sully" <msul...@tcq,net > wrote:
> I have a 2001 Saturn S series. Has 137,000 miles and has been very reliable.
> Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may start
> out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
> --
> Is he
> Lonesome
> Or just blind--
> This guy who drives
> So close behind?
> Burma-Shave
If it is idle high, 99% chance it is the CTS.. cheap and easy to
change and the result will be instant. At $12 it's a no brainer. Just
make sure the engine is cool and you open the collant overfill befor
he swap. Swap fast enough and you won't lose any coolant or at least
very little.
Phil
Re: idling problem
PCV or EGR. Also possible for a TPS to be bad.
Is the check engine light on? See if there are any codes stored and possibly
have the OBDII data (not just codes) checked to see if anything looks out of
whack. Some of the sensors are cheaper than paying for a diagnosis but
sometimes you get lucky other times, the costs just add up throwing random
parts at it.
I like being able to look at the data stream. It tells you if the engine is
running in closed loop (which it should be after it is warmed up and all is
functioning within normal parameters). You can read the actual sensor values
like the CTS and see if it is giving a believable temperature... Lots of
information to be had with the correct tool. I borrow a Snap-On from a
mechanic friend's shop.
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
PCV or EGR. Also possible for a TPS to be bad.
Is the check engine light on? See if there are any codes stored and possibly
have the OBDII data (not just codes) checked to see if anything looks out of
whack. Some of the sensors are cheaper than paying for a diagnosis but
sometimes you get lucky other times, the costs just add up throwing random
parts at it.
I like being able to look at the data stream. It tells you if the engine is
running in closed loop (which it should be after it is warmed up and all is
functioning within normal parameters). You can read the actual sensor values
like the CTS and see if it is giving a believable temperature... Lots of
information to be had with the correct tool. I borrow a Snap-On from a
mechanic friend's shop.
"Sully" <msullyo@tcq,net > wrote in message
news:fkmmgu01qla@enews4.newsguy,com ...
>I have a 2001 Saturn S series. Has 137,000 miles and has been very
>reliable. Lately it has had an idling problem.
> The idle varies from 800 to 2500 rpms. It changes all the time. It may
> start out high, or just change as I drive.
> I had it in for some work non related, I mentioned the problem, and they
> cleaned out the throttle body. It did not really help.
> Any ideas??
> Sully
>
Re: idling problem
as far removed from the Christian religion as
atheism, which is its exact opposite. And thence they conclude that this
religion is not true, because they do not see that all things concur to the
establishment of this point, that God does not manifest Himself to men with
all the evidence which He could show.
But let them conclude what they will against deism, they will conclude
nothing against the Christian religion, which properly consists in the
mystery of the Redeemer, who, uniting in Himself the two natures, human and
divine, has redeemed men from the corruption of sin in order to reconcile
them in His divine person to God.
The Christian religion, then, teaches men these two truths; that there is a
God whom men can know, and that there is a corruption in their nature which
renders them unworthy of Him. It is equally important to men to know both
these points; and it is equally dangerous for man to know God without
knowing his own wretchedness, and to know his own wretchedness without
knowing the Redeemer who can free him from it. The knowledge of only one of
these points gives rise either to the pride of philosophers, who have known
God, and not their own wretchedness, or to the despair of atheists, who know
their own wretchedness, but not the Redeemer.
And, as it is alike necessary to man to know these two points, so is it
alike merciful of God to have made us know them. The Christian religion does
this; it is in this that it consists.
Let us herein examine the order of the world and see if all things do not
tend to establish these two chief points of this religion: Jesus Christ is
end of all, and the centre to which all tends. Whoever knows Him knows the
reason of everything.
Those who fall into error err only through failure to see one of these
as far removed from the Christian religion as
atheism, which is its exact opposite. And thence they conclude that this
religion is not true, because they do not see that all things concur to the
establishment of this point, that God does not manifest Himself to men with
all the evidence which He could show.
But let them conclude what they will against deism, they will conclude
nothing against the Christian religion, which properly consists in the
mystery of the Redeemer, who, uniting in Himself the two natures, human and
divine, has redeemed men from the corruption of sin in order to reconcile
them in His divine person to God.
The Christian religion, then, teaches men these two truths; that there is a
God whom men can know, and that there is a corruption in their nature which
renders them unworthy of Him. It is equally important to men to know both
these points; and it is equally dangerous for man to know God without
knowing his own wretchedness, and to know his own wretchedness without
knowing the Redeemer who can free him from it. The knowledge of only one of
these points gives rise either to the pride of philosophers, who have known
God, and not their own wretchedness, or to the despair of atheists, who know
their own wretchedness, but not the Redeemer.
And, as it is alike necessary to man to know these two points, so is it
alike merciful of God to have made us know them. The Christian religion does
this; it is in this that it consists.
Let us herein examine the order of the world and see if all things do not
tend to establish these two chief points of this religion: Jesus Christ is
end of all, and the centre to which all tends. Whoever knows Him knows the
reason of everything.
Those who fall into error err only through failure to see one of these
