Question about 2012 Chevrolet Impala LS Sedan 3.6L V6 FFV 6-speed Automatic

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Idling problem when i started in the morning the idle goes up to 1000 rpm and bk down to 500 rpms. after 3 minutes of warm up it idles good

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  • 444 Answers

It's supposed to do that as the choke is working to warm the vehicle, when it warms up to operating temperature the choke goes off

Posted on Jan 04, 2015

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Posted on Jan 02, 2017

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SOURCE: 98 blazer 4.3 l low idle

non adjustable computer controlled, there is a idle air control motor that can cause the problem

Posted on Nov 12, 2008

66 chrgr
  • 1011 Answers

SOURCE: 1999 Grand Am 3.4litre idle problems. Starts rough

it sounds like you have a injector leaking down into one of your cylinders so it is flooding out a cylinder thus runs rough and long cranks.

Posted on Jun 16, 2009

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SOURCE: 1990 chevy truck with 454 v8 idles too high

One thing is to leave the IAC adjustment alone, you have a vachum leake betweent the mais air flow sensor or a intake leak.

Posted on Jun 17, 2009

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SOURCE: 3 symptoms in random! one Car ! 2000 Impala 3800

First thing I'd check is fuel pressure. 55psi

Posted on Dec 13, 2009

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SOURCE: 2008 Chevy Uplander has 21,000 miles. Nno heat

Uplanders with the 3.9 engine are prone to no heat at idle speeds. Probably weeping head gasket. Air bubble trapped. Dealers will remove rad cap and let it sit at about 25 deg. angle for a couple hours. Good for awhile.

Posted on Nov 23, 2010

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1 Answer

Toyota corolla hatch 2002 idle at 2000 rpm when


All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

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Why does 02 camry idle high when started?


It only revs up when u start the first in the morning? If so, it is normal, once it warm up it will back below 1000 rpm.

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Why does my standard 2007 Honda Element show 500 - 1000 RPMs when the car is stopped in neutral? Should I be worried?


Hi Sarah,
This is the standard Idle speed of the engine, measured in RPM (revolutions per minute)
Nothing to worry about unless it fluctuates when you are stopped and in neutral.
Otherwise, enjoy your Honda.

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1997 acura cl 2.2 revs up to 1500 rpm and down to 1000 rpm just several seconds after start


Cars are design to run at a higher idle at start up to warm them up quick. There is a sensor that reads water temperature and tells your car's computer how fast to idle. Your RPMs seem slightly high but not out of the norm. Does idle ever drop to around 600/800 after about a minute? If not, your engine temperature sensor maybe defective.

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High idle benz 190e


Could be a defect in the ECU. But 1000rpm is not that high my cars normal is 1000rpm. but some older models were about 700rpm
The AC rise is normal. You may want to have a OBD II check by your garage or you can buy a unit to do this. It will scan the sensors fitted for any problems.

Jan 28, 2014 | Mercedes-Benz Cars & Trucks

1 Answer

Vehicle unused with dead battery for 6 months will start but not maintain idle


The automatic idle speed control system has lost its adaptive idle learning due to the dead battery. To help to correct this in the short term run the engine at 2000 RPM until warm, then back down to 1500 RPM for 3 minutes, then 1000 RPM for 3 minutes, then let it idle for 5 minutes, this should get the system to a point in the idle learn that it doesn't stall out, then drive it for 20 miles under varied conditions of highway and stop and go and low speed operation, that should get all to work again. If you still have problems you will need to have the system scanned to see what is going on that is causing a stall. Also add fresh fuel, gas goes bad in about 3 months. Use the recommended grade of fuel.

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When i start my car in the mornings to warm up it idles for about 5 minutes then the starts to jump up and down from about 1500 rpms to about 2500 rpms one the car warms up more then its from 1000 to 1500...


Try unplugging the mass air flow sensor and see if it levels out.If so I would change the mass air flow sensor.If not try the same technique with the throttle position sensor.

Feb 16, 2010 | 1991 Mitsubishi Eclipse

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