Question about 2006 Chevrolet Cobalt

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Cobalt not running at low rpm.......

My 2006 chevy cobalt is having problems staying running when the rpms drop below 1000, but runs fine at normal speed. I have heard egr valve, throtle control sensor, idol speed control. Ideas?

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All are possibilities but EGR valve makes the most sense. It's famous for causing poor idling and/or stalling at low RPMS. Best of luck.
Greg

Posted on Jun 18, 2009

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Its the idle control.. just have it adjusted and everything should be OK after that.

Posted on Jun 18, 2009

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1 Answer

Seems more noticeable when slowing below 25 MPH, in drive or neutral. Clears up when at a complete stop for a couple of seconds then begins to surge again. Surging between about 450 and 1000 rpm. Drops low...


I had the same problem with my 2005 Cobalt LT. I fixed it by removing the throttle body and cleaning it. There was a lot of build up in there causing the the valve to stick.

Nov 09, 2012 | 2005 Chevrolet Cobalt

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My oil light comes on if engine drops below 1000 rpms, is this the oil pump going out


If the car has low milelege on it end is running okay,End your oil leval is up where it is suppose to be, The oil light sending unit is defective.End needs to be replaced. Hope this helps you out.

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2005 chevy cobalt stalls when foot is off the gas


u may have a brake booster leaking vacum when u apply the brake its useing vacum from engine see if u can hear a hissing sound when apllying brake if so thats ur problem

Oct 02, 2012 | 2005 Chevrolet Cobalt

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My 2005 chevy cobalt rpm drops very low when coming to a stop. I changed the Oil and Plugs and it helped a little bit. PLEASE HELP


first check the throttle plate for carbon build up the look for the knock sensor harness rubbing onto the fan shroud

Jun 08, 2012 | 2005 Chevrolet Cobalt

1 Answer

Do you know where the low side of a chevy cobalt (2006) is ?


Normally the low pressure and High pressure lines run on the passenger side of the engine area. They are the two aluminum lines that run to the firewall from the AC compressor. The good news is the refill can you are going to use to refill your system will only fit the low side line. The fitting is most likely covered by a plastic dust cap to keep it clear.

Sep 17, 2011 | 2006 Chevrolet Cobalt

1 Answer

2006 chevy cobalt(85000 miles) check engine light comes on and stays on. I am getting the check engine light code p0420. Engine seems to be running smoothly.


http://www.obd-codes.com/p0420

TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
there is a service bulletin for this.

http://www-odi.nhtsa.dot.gov/cars/problems/tsb/results.cfm?start=1&SearchType=DrillDown&type=VEHICLE&year=2005&make=CHEVROLET&model=COBALT&vehtype=PC&typenum=1&component_id=0&summary=true

Aug 02, 2011 | 2006 Chevrolet Cobalt

1 Answer

2006 chevy cobalt. replaced motor, got it running but fan is barely engaging and alternator wont charge the battery...any thoughts?


check belt tension, check power alternator field and armature windings according to specs (smaller wires going to alternator harness) check voltage drop on main alternator cable going to battery, less than 0.4 volts ok, check alternator ground (less than 0.1v ok) check if alternator is regulating voltage in alternator or by pcm computer, also check if vehicle has a load detector to increas rpm while under electrical load....

Jul 20, 2011 | 2006 Chevrolet Cobalt

1 Answer

I have a 2006 chevy cobalt, check engine light came on, car runs fine, how can I read the codes without a scanner, is it possible?


Your local auto parts store will read them for free, give you a print-out (sometimes) and recommend some popular fixes. Try Auto Zone, or call your local parts outlet.

Dec 05, 2010 | 2006 Chevrolet Cobalt

2 Answers

Check engine light came on and "engine running on reduced power" message is on.


reduced engine power message chevy cobalt 2006,cars sputtering, and when i presses on the gas the car wont move, i can put the pedal to the floor and the rpm's dont bulge

Aug 10, 2010 | 2006 Chevrolet Cobalt

1 Answer

2006 Chevy Cobalt cuts off if ac is running


this may be a compresor issue,when the car is normal(a/c off) the compressor is not draging the engine,how ever when on if the compressor is goin bad(seizing) will turn your engine off and the belt will drag. have you compressor checked and also see if the system is over charged.

Sep 10, 2009 | 2007 Chevrolet Cobalt Coupe

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