Question about 2002 Honda CR-V

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2003 Honda CRV when the A/C compressor kicks on the car acts like it wants to stall. The A/C will blow cold and the car will not stall but at idle I noticed it will start to overheat now with the A/C on.

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  • jewellaugust Nov 06, 2010

    But it only wants to over heat when the A/C is on?????

  • jewellaugust Nov 06, 2010

    Would the Car Overheat when the A/C is on a idle if the battery is bad? I believe you are right that I have a bad battery.

  • jewellaugust Nov 07, 2010

    Nope, I changed the battery and same results..... maybe A/C clutch ....Alternator?

  • jewellaugust Nov 07, 2010

    2003 Honda CRV when the A/c compressor kicks on the engine drops 300 rpm, like it's going to stall. It's making a clunk noise when kicking on and I changed the battery thinking it was weak.

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A/C can generate more heat at the condensor which is located on the radiator. However, I am wondering if the coolant level is high enough in the car and whether that is causing hte overheat when the A/C is on?

When the A/C compressor kicks on, there is supposed to be an iacv adjustment to allow more gas and air to combine to combust to counteract the increased load on the engine caused by the A/C compressor through the drive belt to the crankshaft.

If the A/C compressor makes the car act like it wants to stall, then the IACV may not be working on this vehicle.

Posted on Nov 07, 2010

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Hi. If the car overheats on idle then you have a problem with the cooling system. Check first if you have enough water to the radiator and reservoir. If possible put coolant to your radiator. If same thing will happen. You need to replace the water pump.

Posted on Nov 06, 2010

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Weak battery

Posted on Nov 06, 2010

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2003 Honda CR-V when the A/c compressor kicks on the engine drops 300 rpm, like it's going to stall. It's making a clunk noise when kicking on and I changed the battery thinking it was weak.


sounds like it's the iacv or idle air control valve not working due to dirt in the orifice or the iacv is burnt out and cannot turn correctly, or the wiring to it is faulty.

Good luck on the repair.

If the A/C compressor makes a clunk noise when kicking on, that could indicate a worn out compressor.

You're right, 300 rpm is way too low. It should be closer to 600 or 700 or 800 rpm and remain smooth when the a/c compressor kicks on.

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The compressor is supposed to cycle on and off. The idle problem may not be the compressor but the solenoid that controls the idle when the compressor is engaged. A bad clutch would present in different ways, i.e. metallic scraping noise. I doubt at this point you are damaging the system by running the a/c.

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