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Vehicles have compensation systems to increase the rpm when the AC is loading the engine, and slowing it down. Newer cars idle speed often isn't adjustable, so the problem's in the ECM (computer) or a sensor.
With an older vehicle, simply bump up the idle speed a little. Usually a 1/8 or so, turn on the adjusting screw will do it.
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∙ 13y ago
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Why would your car shake when you are idling and have the AC on but not when you are driving?
spark plug gap Can also be a vacuum leak.
Why does Car shake when started o and ac is on?
Usually when this happens to my car, its just because the RPM is lower than normal. Your car isn't warmed up (probably worse because it's getting cold out) and your AC is taking power that would go to your engine. This is what i have experienced with my car.
Why does your car shake when you turn off the AC?
Check the alternator or the main lead of the ac wire to check for either if there is too much pressure is being applicated to the alternator or if theirs a shortage in the main lead wire to the ac
Does bad spake plugs make car shake in idle and with ac on?
Yes they can. It can also be a vacuum leak, or defective idle control valve.
Why Car engine shake when AC is on at idle?
The engine idle may be set to low to compensate for the AC compressor starting up. Rev the engine a few times to see if it stops. If it doesn't, there may be a problem with the AC temperature signal or motor mount.
Why does car shake when ac is on?
The engine management system may not be adjusting for the extra load of the A/C. Can also be the A/C compressor is seizing up. Have this looked at by a professional.
Your Car shakes when AC is on what could it be?
Is it a 4 cylinder? Sometimes a 4 cylinder engine will shake a little extra when the AC is running and it's at an idle. You might be able to step up the idle a little extra but 4 cylinder engines are notorious for shaking when the AC is running.
Why does your car shake when ac is turned on?
The engine management system may not be adjusting for the extra load of the A/C. Can also be the A/C compressor is seizing up. Have this looked at by a professional.
What causes a car to shake when going up hill?
The CV joint being loose is one of the main causes for a car shaking while it is going uphill. However, a faulty AC and faulty engine could also be the problem.
Why does my windshield shake when my truck AC is running?
The truck needs a tune up.
Put AC ON car over heats?
put on ac in car and over heats
Why do dogs shake in car?
cause they do
