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04 Chevy Colorado light came on low engine idle to low P0506. Found hose on top of valve cover cracked so I replaced it. Reset engine light and put @35miles before engine light came back on. Butterfly

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  • Cars & Trucks Master
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Clean out the throttle body and reset the code.

Posted on Jan 16, 2013

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SOURCE: Have 92 Accord LX idles low when running and problem cranking

does it have a throttle body or fuel injection?

Posted on Jun 27, 2009

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SOURCE: idle problem on a 2006 chevy trailblazer 4.2

The code indicates an issue with the Throttle Actuator control. This is a little motor on the throttle body that opens the throttle plates at idle. That control motor may be bad and thus, causing a low idle.

I hope this helps.

Posted on Jul 21, 2009

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Posted on Sep 12, 2009

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SOURCE: How do I clear a code P0506 on Chevy Colorado 04'? Not fix, but simply clear to see if it returns.

did you try disconnecting the battery and then reconnect battery, it works a lot like a hard boot on a PC in fact that is what your doing to your cars computer

Posted on Dec 02, 2011

  • 937 Answers

SOURCE: Does my 2004 colorado 2.8 4cyl have a PCV valve on it

yes i think so
if you need a diagnostic tool you can click here: chinasinoy.com

Posted on Jan 16, 2013

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1 Answer

Revs up while idling


If you didn't correctly reinstall the PCV hose from the black box at the throttle body back on to the valve cover, you might have a vacuum leak causing your high idle. I'd check that first. That is a common mistake to miss that rubber hose. It's hidden underneath the black box at the front of the valve cover. If it is loose, just loosen up the boot at the throttle body, and the two bolts on the right side of the black box above the valve cover. Reposition the 90 rubber hose back on to the valve cover and recheck it. A hissing noise with the engine running is a good indication that the engine has a vacuum leak somewhere- usually a rubber hose disconnected from the intake manifold or throttle body.

Oct 18, 2013 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

Does my 2004 colorado 2.8 4cyl have a PCV valve on it


yes i think so
if you need a diagnostic tool you can click here: chinasinoy.com

Jan 16, 2013 | 2004 Chevrolet Colorado

1 Answer

How do I clear a code P0506 on Chevy Colorado 04'? Not fix, but simply clear to see if it returns.


did you try disconnecting the battery and then reconnect battery, it works a lot like a hard boot on a PC in fact that is what your doing to your cars computer

Dec 02, 2011 | GMC Canyon Cars & Trucks

2 Answers

I have a 2005 chevy colorado wit a 3.5 it idles at 500rpm is there any way to turn the idle up


CHECK AIR FILTER NEED CHANGING COULD BE CLOGGED OR CLEAN IDLE AIR INLET PASSAGES REMOVE IDLE SPEED CONTROL VALVE DONT SPRAY CARBURETOR CLEANER ON IDLE AIR CONTROL VALVE YOU WILL DAMAGE IT. AND USE CARBURETOR CLEANER TO CLEAN THROTTLE BORE AND THROTTLE PLATE FROM CARBON DEPOSITS MAKE SURE ENGINE TUNED UP YOU HAVE FUEL INJECTORS CLEAN NEW FUEL FILTER.NEW SPARK PLUGS AND WIRES IF ENGINE HAS 100000 MILES ON IT.

Sep 07, 2011 | Chevrolet Colorado Cars & Trucks

2 Answers

What would cause my 2005 colorado to idle really low and if i stop at a stop light or make a sharp turn it dies what could be the cause


Hello, if your check engine light is not on & the Colorado does not have a P0506 error code....
Check every connection on the air intake between the MAF sensor and the throttle body for vacuum leaks...Remove and clean the IAC (idle air control) & the MAF (mass air flow sensor)
Do not use brake cleaner on the MAF sensor, you can purchase MAF sensor cleaner at your local parts store....I hope this helps.

Aug 25, 2011 | 2005 Chevrolet Colorado

1 Answer

I am getting codes PO 128, PO 300 and PO 506 on my chevy Impala, 2002, LS 3.8


code P0128 ECT ( electronic coolant temperature ) engine temperature to low ( replace thermostat ).

code P0300 engine miss fire detected ( replace spark plugs and spark plug wires )

code P0506 IAC ( idle air control ) system idle to low ( clean the IAC valve if problem persists replace the IAC valve )

Apr 15, 2011 | 2002 Chevrolet Impala

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

1 Answer

Idle problem on a 2006 chevy trailblazer 4.2


The code indicates an issue with the Throttle Actuator control. This is a little motor on the throttle body that opens the throttle plates at idle. That control motor may be bad and thus, causing a low idle.

I hope this helps.

Jul 21, 2009 | 2006 Chevrolet Trailblazer

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