(Quick clarification, I am
(Quick clarification, I am "John R." above, sorry, was at work without my password.)
Regarding the "torque damper" I talked about above, I have only heard about one failure, so I don't think it is a weak design, was only speculating on the slippage issue.
As for hills, I am often up in the Jim Thorpe area of PA, with its long steep inclined hills. My Prius does well on them, but it is easy to jump into the secondary program where the engine is kicked to a much higher RPM. Since there is no direct connection between the engine and the wheels due to the influence of MG1, one might also perceive slippage. Although it does not "feel" natural, any MG1/MG2 speed error would pop an error code.
Regarding the "crack", did they actually find one? If the case is not cracked, you may just have a bad MG2 winding. Not too common, but the motor can fry itself, and usually will not set a code until it shorts to the frame. This usually sets a error code like P3009, P3120, or P3125. (more common on the Generation 1 Prius, you have a Gen 2.) MG2 goes for about $1100 plus install.
I have a '06 Prius with 220K
I have a '06 Prius with 220K original engine and no transmission problems up until now. I drive the car very hard using the braking functions frequently even at high highway speeds (80+) I didn't have to replace the brakes until 195K. I accelerate hard and drive hills (some very steep grade) with no problems. However just recently I seem to experiencing some slight slippage when I use engine braking function going down long grades and my avg mpg has dropped by 4-5mpg. John R/D you seem to be knowledgable. I would rather address the problem if possible before something major happens however I am leery of opening a proverbial can of worms. Do you have a troubleshooting list in order of what you would recommend being checked? I can also be reached at qablooie@gmail Thanks in advance for any help!
I bought a new 2005 Prius 8
I bought a new 2005 Prius 8 years ago. It has given me little trouble until about 2 months ago, when the mileage was about 80,000. At that time, I had to have it towed to Toyatech, which diagnosed the red triangle warning as indicating a failure of the 12V battery. I went on my merry way with a new one. Just two days ago, the red triangle lit up again. I had arrived at the mall, so I parked and went inside. When I exited several hours later, the car would not go into drive or reverse. Just heard from Toyatech that it has a voltage leak and will require a transmission replacement. We will use a used one, to keep the cost in the low $3000 range. Any advice?
By the way, I too have experienced a bit of slippage on the interstate--engine revving, but no accompanying acceleration! It was noticeable enough that it scared me, but it has happened no more than three or four times, and has not been so severe as to make me unsafe in traffic---yet.
Toyatech says the transmission is not under warranty in my state--Georgia.
I have the same
I have the same issue with my 2001 Toyota, they are saying i have to replace transmission and it will cost me 4000 dollars, i took it to Ventura Toyota dealer. How did it go for you and your babe? I really do not want to give up on my toyota as it has been really good. I kept all services up to the date. But this 4000 dollars transmission thing just killing me.
If they are reading
If they are reading a P3120 code with an information tag of 250, than your generation one Prius probably does have a shorted MG2 in the transaxle (transmission.) Some service centers are replacing just the motor for about $2500. $4000 seams high. As for the battery, if it is an 11 year old car with the original battery, your concerns are valid. There are several options ranging from buying new cells and doing your own rebuild ($1400), Buying a rebuilt battery and having it installed ($1800 plus labor) to having a dealer do it (around $3800.) Again, 5000 seams high. Using the figures you were quoted, it is hard to justify putting $9000 into it, but by shopping around, you may be able to halve that price. Definitely worth spending a day on the computer and phone before spending anything. If the car is in great shape otherwise, changing the motor/transaxle and battery may be worth it at the right price.