Join Date: Feb 2006
Location: Central Jersey
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Originally Posted by nevets2
Thanks for your replies. I'm so excited to at least be talking to other Prius owners who are listening to my problem.
Please understand that my point of view concerning how the Prius is operating is the info screen.
Info button top right side of steering wheel controls. Opens onto 2 windows
1. the "constant MPG" column window also with the current MPG for this tank
2. the window showing whether the car is being run off of the electric engine, the gas engine or both. Also shows the level of charge in the Prius main battery.
You can go back and forth between these two windows by clicking that Info button on the steering wheel.
I'm always looking at these windows as I drive.
I know how to release the accelerator on certain conditions over a flat or downhill grade so that the gas engine kicks out and the electric engine takes over at "99.9 GPM".
Lately, this has become more difficult. The gas motor refuses to kick out when it had been and allow the electric motor to kick in. (sometimes just kick out and no motor is on - we're just cruising on momentum). There are, in fact, a few symptoms of this problem, all working to increase the time that the gas engine is on and retard the transition to the electric engine or to otherwise turning off the gas engine.
Then I see that I'm getting worse mileage (starting at least 2 months ago during the summer before I brought it in for it's 30,000 mi service at which point they said everything looked good to them)
So it looks to me like the hybrid mechanism needs a "tune up" so that the gas engine can go back to acting as it had in the past and turning off under the same conditions, thereby enhancing my overall MPG per tank.
Is that any clearer?
Please speak to my experience of seeing (and feeling) the gas engine refusing to turn off as easily as it had in the past.
BTW, this happens well after the engine has warmed up.
PS I will check my tires and geet them up to full steam if they show any less pressure than suggested. I've looked at them periodically and see no indication of any serious reduction iin pressure. In any case I fail to see how tire pressure should be affecting the readiness of the gas engine to cut out when conditions are ripe.
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