2007-05-15 09:56:49 · 7 answers · asked by Artist C 1 in Cars & Transportation ➔ Maintenance & Repairs
Did you just start noticing this or has it been doing it all along?. Ac compressors ages and can start putting a bigger strain on the engine when it kicks on. Vehicles also have a throttle control on them so when the ac does go on the engine rpms are automatically raised. This is why I asked if you just started to notice it. The sensor that tells the computer the ac is on and raises the engine rpm could be bad. You really should not notice the car slowing with todays technology.
2007-05-15 10:13:04 · answer #1 · answered by asccaracer 5 · 0⤊ 0⤋
Anything that consumes an engine's energy for another use is called parasitic loss.
The A/C compressor runs off a clutch that is driven off a drive belt that is turned by the engine. When the A/C is off the clutch is open and spinning freely causing no strain on the engine. When the A/C is on the clutch is closed and the drive belt is turning the A/C compressor. This takes energy away from the engine's primary funtion of driving the car forward.
In smaller, lower horsepower engines this loss is more pronounced. Smaller engines need all of its available power to move the car foward in an effiecient manner.
However in cars with high horsepower engines, Corvette for example, the loss is hardly noticeable because the engine creates more HP than the car actually needs.
2007-05-15 10:14:53 · answer #2 · answered by Radio dude 2 · 0⤊ 0⤋
usually very normal. The A/C compressor runs off of the engine and when the 'clutch' on the compressor engages (you turn the A/C on), the engine is laboring under additional load, thus slowing the rpm.
That said, some A/C set ups allow for this extra load by having the computer increase the rpm back to the 'set-point' (probably around 700 rpm). A good mechanic can tell you if your car should do that, and, if it is supposed to, what to look for to fix the problem.
2007-05-15 10:07:58 · answer #3 · answered by paul s 5 · 1⤊ 0⤋
well first what year of a car if its an older car with a smaller engine then the problem is power, ac takes a lot of power from the engine to run it or the compressor could be bad (even on a brand new car) could be a belt/pulley problem
2007-05-15 10:03:47 · answer #4 · answered by lilcuz42 1 · 0⤊ 0⤋
No the compressor velocity isn't controlled by applying the fan swap. Compressor velocity is controlled by applying the fan belt and the a/c take carry of. Fan velocity strikes extra air interior automobile so like something in case you progression extra air you experience chillier air status nonetheless or shifting much less absorbers extra warmth hence is warmer. not a gasoline saver. in case you choose to maintain gasoline do not turn all of it the thank you to chilly which will turn the compressor off quicker.
2016-11-04 00:55:40 · answer #5 · answered by ? 4 · 0⤊ 0⤋
it means the air conditioning compressor is putting an additional load on the engine causing it to slow down. If you have a small car with a small four cylinder engine, this is far more noticeable than with a v6 or v8.
2007-05-15 10:02:21 · answer #6 · answered by bbking48507 5 · 1⤊ 0⤋
It means that your car has more power or energy if you will when you don't run the ac
2007-05-15 10:04:59 · answer #7 · answered by TAT 7 · 0⤊ 0⤋