Possible Eco Mode Explanation... Possible

[TheSweenyFiles]

Okay, I asked the dealer...

The Eco light turns on and off the AC motor. The motor requires around 5hp to run. Dont believe me, pop the hood, turn the car on and have a buddy rev the engine alittle while in Eco mode. You can hear a different pitch in the engine sound. If you look closely down in the bottom right of the engine block you can see the AC motor "Disengage" and stop spinning when the Eco light turns on.

I could be wrong tho. the dealers will say anything to be more "green"

then again, if they did lie to me something must be wrong with my idle because there is a definite change in pitch when the car is idling to when you rev it up alittle while in the Eco Mode. When i turned the eco mode off i couldnt hear a difference when it would rev up.

Anyways, check it out for yourself! let me know if im going crazy or not!

 

[harper7]

Okay, I asked the dealer...

The Eco light turns on and off the AC motor. The motor requires around 5hp to run. Dont believe me, pop the hood, turn the car on and have a buddy rev the engine alittle while in Eco mode. You can hear a different pitch in the engine sound. If you look closely down in the bottom right of the engine block you can see the AC motor "Disengage" and stop spinning when the Eco light turns on.

I could be wrong tho. the dealers will say anything to be more "green"

then again, if they did lie to me something must be wrong with my idle because there is a definite change in pitch when the car is idling to when you rev it up alittle while in the Eco Mode. When i turned the eco mode off i couldnt hear a difference when it would rev up.

Anyways, check it out for yourself! let me know if im going crazy or not!

The ECO mode is nothing more then a light to tell you you are pushing too hard on the gas for conditions. A gee wiz type thing.
It does nothing to change engine parameters such as idle speed or when the AC clutch comes on or off.

 

[iDRiVaT4R]

I read somewhere that the Eco light is basically dependent on the engine vacuum?? Is that right?

 

[ciaz]

Harper is correct. It is simply an indicator.

They went the cheap route. My last two vehicles had true MPG information, which showed what kind of gas mileage you were getting at any instant.

 

[Fuzzylogic]

Harper is correct. It is simply an indicator.

They went the cheap route. My last two vehicles had true MPG information, which showed what kind of gas mileage you were getting at any instant.

Correct...but, the mileage indicator does a cumulative average. I've been checking my average at every fill up and it is accurate if you reset it for the full tank. It indicated a full-tank average today of 20.3. My calculation (simply total miles divided by total gallons) yielded 20.1 mph for the tank at 347 miles. Obviously, about 75% of my driving is on the highway.