Question about 2004 Chevrolet Colorado

1 Answer

Getting the code that means Idle speed lower than expected. What should be checked or fixed? Oh, it's a Chevy Coclorado 3.5 cyc

Posted by on

  • Eric Vanderberry Nov 13, 2009

    Thank you! i will check into it.

  • Eric Vanderberry Dec 10, 2009

    Thank sfor your help! The tune up did the trick. Thanks again!

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,615 Answers

Check the throttle body for buildup and clean. Most likely your Idle Air Control Valve is going out. Just make sure you have no vacuum leaks and arnt in need of a tune-up. Then replace the IAC

Posted on Nov 13, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

How to fix a dtc p0507?


A vacuum leak Leaking air intake after the throttle body EGR valve leaking vacuum A faulty positive crankcase ventilation (PCV) valve Damaged/failed/dirty throttle body Failed EVAP system Failed IAC (idle air controller) or faulty IAC circuit

Sep 28, 2015 | 2005 Nissan Altima

1 Answer

1999 Chevy Blazer 4wd 4dr code P0125 what do i do?


Well code 125 means the engine is not getting hot enough for the emission system to work. In most cases you need a new thermostat, but it could also be a faulty coolant temp sensor.

Aug 04, 2014 | 1999 Chevrolet Blazer

1 Answer

P0506 code, low idle speed, sometimes stops and needs restarting at intersection


Hi, the P0506 code (IAC System RPM Lower than expected), means that the PCM has detected an idle speed less than what it wants to see. There is a predetermined amount the throttle plate can open to maintain a good idle RPM, if this amount is exceeded, the PCM will set this DTC. I have seen this on many ETC vehicles such as your Mustang. The proper procedure is to replace the throttle body to fix it, but, on more than one occasion I have fixed them by cleaning the throtte body.

Have someone turn the ignition switch on, and depress the throttle (Engine off), remove your air intake tube, and use a rag and a mild carb cleaner and clean the buildup around where the throttle plate closes, on the outer part of the throttle opening. Clear the code, and retest.

Unless there is something else obviously wrong (Clogged air intake, plugged exhaust) this should fix your problem. If it doesn't, you will have to replace the throttle body itself.

Jul 24, 2011 | Chrysler Town & Country Cars & Trucks

2 Answers

Code po506 is showing up what does this mean


P0506 - Idle Air Control System RPM Lower Than Expected
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0506 DTC trouble code may be caused by one or more of the following:
A vacuum leak
An air restriction in the intake air path or exhuast
A faulty positive crankcase ventilation (PCV) valve
Damaged/failed/dirty throttle body
Internal engine problem
Failed PCM

Possible Solutions: This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

Other related DTCs: P0507

Hope helps.

Jun 14, 2011 | 2003 Nissan Maxima

1 Answer

P507 buick regal 1998


P0507 - Idle Air Control (IAC) System RPM Higher Than Expected

This P0507 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set.

Potential Symptoms: Most likely you'll notice the idle speed is higher than normal. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0507 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* Leaking air intake after the throttle body
* EGR valve leaking vacuum
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Failed EVAP system
* Failed IAC (idle air controller) or faulty IAC circuit

Possible Solutions: This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect the intake air system for air or vacuum leaks and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

If you have an advanced scan tool that can interact with the car, command the idle higher and lower to see if the engine responds appropriately. Also check the PCV valve to see if it's blocked and needs to be replaced. Check the IAC (idle air controller) if equipped, verify it's operation. If available, try swapping in a new throttle body to see if that fixes the problem. On Nissan Altimas and possibly other vehicles the problem may be fixed by having the dealer perform an idle air relearn procedure, or other relearn procedures.


Hope this helps; keep us updated.

Feb 04, 2011 | 1998 Buick Regal

1 Answer

WHEN I TURN THE ENGINE OFF AFTER I HAVE RAN THE TRUCK IT BACK FIRES THIS IS A1985 CHEVROLET PICKUP 3\4 TON SCOOTSDALE WITH A 350


Check idle speed and mixture at idle. Often with too fast idle speed, engine will not shut off. Many vehicles had an electric solenoind that released the idle speed to much lower, at key off.

Sep 17, 2010 | 1985 Chevrolet Chevy

1 Answer

I replaced the alternator belt and battery. Now it is idleing different. It shows code P0506. I have checked the hoses and connections and I cannot find anything bad. What should I try next?


Hi:
Here is info on your code:

P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

What does that mean?
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0506 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* An air restriction in the intake air path or exhuast
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Internal engine problem
* Failed PCM


The first thing to do is clear the code and see if it comes back, and if it does, work your way thru the list of possible causes.

Sep 09, 2010 | 2005 Ford Mustang

1 Answer

05 FOCUS P0-507 CODE


P0507 - Idle Air Control (IAC) System RPM Higher Than Expected

This P0507 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set.

Potential Symptoms: Most likely you'll notice the idle speed is higher than normal. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0507 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* Leaking air intake after the throttle body
* EGR valve leaking vacuum
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Failed EVAP system
* Failed IAC (idle air controller) or faulty IAC circuit

Possible Solutions: This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect the intake air system for air or vacuum leaks and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

If you have an advanced scan tool that can interact with the car, command the idle higher and lower to see if the engine responds appropriately. Also check the PCV valve to see if it's blocked and needs to be replaced. Check the IAC (idle air controller) if equipped, verify it's operation. If available, try swapping in a new throttle body to see if that fixes the problem. On Nissan Altimas and possibly other vehicles the problem may be fixed by having the dealer perform an idle air relearn procedure, or other relearn procedures.

Hope helps (remember comment and rated this).

Aug 05, 2010 | 2004 Ford Focus

1 Answer

06 chevy trailblazer idle control system RPM lower than expected


P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

What does that mean?
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0506 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* An air restriction in the intake air path or exhuast
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Internal engine problem
* Failed PCM

Possible Solutions:
This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

Other related DTCs: P0507

Jul 13, 2010 | 2006 Chevrolet Trailblazer

2 Answers

Would like to know what code 506 means on my 04 f150all i did was change my battery and check engine light came on truck started to stall and run ruff is there a reset sequence i need to go through? please...


P0506--idle air control system rpm lower than expected--check around where battery was replaced may have damaged or knocked loose a vacuum line- possible dirty throttle body clean throttle body check for restriction in intake air tube also clean" iac"---possible faulty pcv valve fix or replace if necessary--good luck

Jan 27, 2010 | 2004 Ford F150

Not finding what you are looking for?
2004 Chevrolet Colorado Logo

Related Topics:

89 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...