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Car Idles Over 2000 Rpm When Ac Is On

My 2000 2.0L Chevy Tracker idles rough and at about 500rpm or less. Is there a way to increase the idle?

There is an idle adjustment screw on top of your engine. If you take off your throttle cover and look at where the bottom part of the throttle lever hits when you press and release the gas peddle, that is the end of the adjustment screw. Just turn the screw clock wise a half turn or as needed to bring your idle to about 900 rpm. Remember to turn off the ac during this procedure. This should help but you should really find out what the real problem is before adjusting. It could be bad plugs, plug wires, fuel filter, map sensor, EGR valve(carbon buildup), clogged injectors, water in the gas, and maybe even the idle positioning sensor. I would need more info. Hope this helps!

Why does my Toyota Celica idle at 2000rpms?

I have 1990Toyota Celica, manual transmission.

I recently acquired this vehicle and I was wondering why the rpm his so high.

If I let it sit, it goes to 1500 from 2000.

When I turn on the ac it drops to 1000 but it is too cold for ac right now.

Any suggestions?

What is the best idle rpm for my 1993 honda accord?

2000 is a bit high, even for a cold weather start. When you first start it, the ECU (computer) idles faster and with a richer fuel mixture, usually around 1200 rpm.

You cannot adjust the idle speed, as it is computer controlled. There are several systems that control idle speed, including a system that adjusts for when the air conditioner is on. You need to run the diagnostic codes.

Why does my car idle at a really low RPM while stopped, and start shaking?

You may have a misfire, a vacuum leak, or a clogged/faulty idle air control valve. It could be a couple other things, too, but those are the most common and first things you should explore. This is because:If you have a misfire, one of your cylinders is not working and while that may be less noticeable at higher speeds when the engine is spinning really fast and the throttle is wide open, at lower speeds the difference is more apparent.If there is no misfire (and no codes / check engine light), the problem is most likely air related. This could mean a vacuum leak from a hose or the intake manifold itself. Or, commonly, it could be that your Idle Air Control Valve is clogged or not working well. The engine monitors via sensors how much air is coming in vs engine speed and uses that to control fuel injection and ignition timing.If it's a vacuum leak, the engine is getting more air than it thinks it is and that is causing a 'lean' fuel/air ratio.If the IAC valve (and its passages around the throttle plate) are clogged up, the engine thinks it's getting more air than it really is at idle with the throttle plate closed (foot off the gas), resulting in a 'rich' fuel/air ratio.All of these scenarios will probably cause some sort of engine code and checking them should be your first step. Note that an oxygen sensor code will be indicitave of one of the above 'air' situations because it detects how rich or lean the ratio is.

I got a 1996 Honda Accord that idles at 2000 rpm. How do adjust the idle down to 1000 rpm?

There is an idle speed adjustment screw on that engine. Its covered by a bit of rubber. Take it off and turn the screw until you get the idle right. If the idle doesnt correct look for other problems like a vacuum leak.

Also, found this on a forum thats specific to your car
Before setting the idle speed check the following items;
-The MIL has not been reported on.
-Ignition timing
-Spark plugs
-Air cleaner
-PCV system
-(KC model) Pull the parking brake lever up. Start the engine, then check that the headlights are off.
1. Start the engine. Hold the engine at 3,000 rpm with no load (A/T in [N] or [P] position, M/T in neutral) until the radiator fan comes on, then let it idle.
2. Connect a tachometer.
3. Disconnect the 2P connector from the Idle Air Control (IAC) valve.
4. Start the engine with the accelerator pedal slightly depressed. Stabilize the rpm at 1,000, then slowly release the pedal until the engine idles.
5. Check idling in no-load conditions: headlights, blower fan, rear defogger, radiator fan, and air conditioner are not operating. Idle speed should be: M/T 550 ±50 rpm A/T 550 ±50 rpm (in N or P position)

-Adjust the idle speed, if necessary, by turning the idle adjusting screw.

NOTE: After adjusting the idle speed in this step, recheck the ignition timing. If it is out of spec, go back to step 4.

6. Turn the ignition switch OFF.
7. Reconnect the 2P connector on the IAC valve, then remove the BACK UP (RADIO) (7.5 A) fuse in the under-hood fuse/relay box for 10 seconds to reset the ECM/PCM.
8. Restart and idle the engine with no-load conditions for one minute, then check the idle speed. NOTE: (KC model) Pull the parking brake lever up. Start the engine, then check that the headlights are off. Idle speed should be: M/T 700 ±50 rpm A/T 700 ±50 rpm (in N or P position)
9. Idle the engine for one minute with headlights (Low) ON and check the idle speed. Idle speed should be: M/T 770 ±50 rpm A/T 770 ±50 rpm (in N or P position)
10. Turn the headlights off. Idle the engine for one minute with heater fan switch at HI and air conditioner on, then check the idle speed. Idle speed should be: M/T 770 ±50 rpm A/T 770 ±50 rpm (in N or P position) NOTE: If the idle speed is not within specification, refer to Diagnosis by Symptom .

Is it normal for a car's idling RPM to decrease when the air is turned on?

Sure, these devices take energy to run. I have seen quotes where a car Air Conditioner compressor and fans would take 6 horse power to run on a hot day. A defroster is using the Air Conditioner compressor to dry out the air and defrost / defog the window. Either way, you’re running the compressor which takes energy to do.

Why doesn't my car AC work properly while idling?

Your AC doesn’t stop working most likely but it does lose much of its capacity.An auto AC has two limiting factors when the car is at idle.First the engine RPM are very low likely around 700–800 RPM. The engine turns the compressor. The faster the RPM the faster the compressor spins. The faster it spins the more refrigerant it is pumping through the system. The more refrigerant moving through the system the more cooling capacity. Normal engine RPM are 2000–2800 RPM which is approximately 3 times the idle RPM so approximately 3 times the capacity.Second is the air flow across the condenser coil at the front of the car. When the car is a idle it is most likely not moving. The only air moving through the condenser coil is being moved by the engine fan. That is much less air flow than when the car is moving at say 40 MPH. Less air flow means less cooling for the hot refrigerant gas which means, you guessed it, less capacity.So these two factors combine to reduce the cooling capacity of your AC significantly. If you put your car in neutral and increase the engine RPM to say 1500 RPM you will see a big increase in the cooling.In my cars the AC hits maximum capacity when I reach about 40 MPH. At that speed the RPM is 2000 or so and the air flow through the condenser coil is removing as much heat as the system produces.

What is the normal idle rpm for a 2002 gt mustang?

Mine idles right around 600-700 rpm's. Anything over that is a bit much. If it's idling too high, it could be that you have a vacuum leak somewhere and the engine is trying to compensate for it. Try checking all of the vacuum lines for cracks/breaks/rubbing.

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