Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

what does engine high idle mean?

Posted on 2013-01-27
6
Medium Priority
?
8,761 Views
Last Modified: 2013-01-28
What does engine high idle mean?


Thank you!
0
Comment
Question by:naseeam
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
6 Comments
 
LVL 23

Accepted Solution

by:
tailoreddigital earned 1000 total points
ID: 38825303
It's the opposite of the other question you asked,

The engine has a shaft in the middle that spins so many revolutions per minute (RPM).     When you press the gas pedal, you cause the RPM to go faster, which accelerates the car.    When you are sitting at a stop light,   you are not pressing the gas, but you don't want the engine to stop, because you want to be ready to go on a green light,  so the car keeps the RPM at a minimum to keep the car ready to go.    That RPM number (600-1000rpm) when you are sitting still, with no foot on the gas pedal is your "idle".

If the Idle is too high, then the car is experiencing unneeded wear & tear, and you're wasting fuel.

Further info,

http://en.wikipedia.org/wiki/Idle_speed
0
 
LVL 1

Author Comment

by:naseeam
ID: 38825320
so does high idle mean that RPM is greater than 600-1000 RPM when foot is off the gas pedal.

And does low idle mean that RPM is lower than 600-1000 RPM when foot is off the gas pedal?
0
 
LVL 23

Expert Comment

by:tailoreddigital
ID: 38825327
Yes, exactly.

There is an optimum idle when the foot is not on the pedal.  

This optimum varies depending on the car.    600-1000rpm is an average optimum idle.
0
How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

 
LVL 34

Expert Comment

by:Michael-Best
ID: 38826372
If you are talking about machinery (which I think you are) quote from your other question:
http://www.experts-exchange.com/Other/Automotive/Q_28010676.html
"I meant Low Idle"
Then the correct answer is that:
The machines engine will run at a "LOW IDLE" speed when the machinery is not engaged for use and will go into a "HIGH IDLE" speed when engaged to be used and thus, ready to accelerate when more power is required by the machinery.

Also you asked:
" so does high idle mean that RPM is greater than 600-1000 RPM when foot is off the gas pedal.
And does low idle mean that RPM is lower than 600-1000 RPM when foot is off the gas pedal? "

If the engine is diesel then the answer is no... as diesel engines idle at much lower speeds depending on the engine the idle could be as low as 250 RPM
You will need to look up the specifications for the particular engine.

If my answer is better for your question then please click the "Request Attiontion" tab for a moderator to help.
0
 
LVL 1

Author Comment

by:naseeam
ID: 38827113
Yes, I'm talking about Asphalt Paver Machines.   When you say machine engine, do you mean that machine engine is powering machine functions.  And is there another engine that moves the tractor or vehicle.

Thank you so much for responding after points were assigned.
0
 
LVL 34

Expert Comment

by:Michael-Best
ID: 38827882
"When you say machine engine, do you mean that machine engine is powering machine functions."

Yes on Asphalt Paver Machines one engine drives both the paver along the road and its paving functions or pavement laying operations.


It seems obvious that you have selected answers for both this question and your other question : http://www.experts-exchange.com/Other/Automotive/Q_28010676.html
that are intended for cars which do not suit your questions about Asphalt Paver Machines.

Please click the "Request Attiontion" (located below your original question) tab for a moderator to help you to assign points correctly.
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article was published in 2011 before the proliferation of "free" navigation apps for the iPhone. I have added some edits at the end of this article with some more recent information that applies to newer models of the iPhone. I have used the…
A feature on Tesla vehicles and their impact on the automotive industry.
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…

618 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question