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My car having ''surge''.when car A/C on car rpm is drops a little between 850-1000rpm during gradual accelaraion then raises normally Car Mileage 7000km Car Model-2007 Engine-VQ 35 please help me
The air conditioner puts a load on the engine. So it is typical for it to **** up some power. This is usually seen in the RPM dropping momentarily until the ECM (Computer) is able to bump up the idle into the 850-1000 range.
If this is what you're talking about, then it's normal. If the car surges with the A/C on, then their might be a problem with the compressor and/or compressor clutch.
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when the pump is bad, you can raise the engine speed to test it, the higher speed will make it have more assist, then replaced the pump. and read alignment print to be sure it is set to green
sounds like there may be a few problems - bad vaccum line somewhere for the idling problem - the check ingine light should only come on when oil is low or needs changing or there is another problem
Your idle air control valve sounds like it is failing. This is basically a solenoid that actuates at idle to allow air for proper combustion and maintain idle.
try putting your key in the door on the passneger side and turning to lock it...the window should go up...a replacement motor is about 350 to 400 dollars
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