It is summer in my country and AC is a must. But i am having troubles with the rpm. In the morning i first let the engine get running for a minute or so and then turn the AC on at 2. The rpm drops to 500 and then after jumping between 500 to 800 gets normal after a while. Sometimes while driving when AC is on and i brake the car and press clutch rpm drops to 500 and car vibrates this shouldn't happen usually. I faced this situation a few miles back and get the throttle body serviced everything went normal. It is happening again. And even when engine is in running condition and i turn AC to 4 rpm jumps between 500 and 1200 continuously for a while. What is the reason and how to get it fixed.? Video attached below when engine is hot and AC is switched to 4. PS: air filter and spark plugs are timely changed.
Video (Click to enlarge)
Apr 30, 2019 at 5:50 AM