Last post on Nov 21, 2013 at 7:47 AM
You are in the Toyota Prius
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Toyota Prius, Engine, Fuel System
#51 of 105 Re: Lost of power while diving [cathie2]
Nov 02, 2009 (2:50 pm)
Hey Cathie 2...I just posted for the first time for I had the same exact issue and I was trying to see if any other ppl had the same issues. If you read my post earlier, I have a 2005 Toyota Prius w/ 158k miles on it. The first time I got it diagnosed, they told me that it was the inverter and that it would cost $4k for a new one. I waited for about a month for I was skeptical and then my car did the same thing yours did...it hiccuped a bit then the engine idled and then slowed down and died. The only addition I had to this was that a week prior, the engine was hiccuping, but also the engine stayed on...even at stops and in traffic...the battery cooling fan stayed on and never shut down. I got my vehicle towed to the dealerhship and I was prepared to pay the $4k for the inverter, but they did another diagnosis and told me it was not for sure the recharable battery. That alone will cost $4,200 plus tax...then they will re diagnosis the vehicle and see if the inverter is still needed.
SO PLEASE...if you have been diagnosed with another or cheaper way than my diagnosis...then I am all ears! Hope your diagnosis works for you and then I can try that vs doing my route.
Also if you are under 150k....Toyota should warranty the recharable battery & I think 100k for the inverter...so if it is...you might want to relay this to the dealer and see if this can get replaced on your vehicle.
Hope this helped!
#52 of 105 Re: Car WON"T START [stevegold]
Nov 04, 2009 (1:15 pm)
Thanks for the heads up steve. I looked into that as well...so I went with the lesser evils vs swapping out the battery. I took cathie2's advice and getting the crankshaft sensor replaced for 300 bucks and then getting the software updgrade for 100 bucks. Since I am over the 100k, they won't offer the free upgrade. they told me if I replace the battery, then they will install the upgrade for free.
Well if this fixes the problem, then Toyota HQ will hear an earful for I have an open case with them about this situation. My service director indicated that those were not the issue and that the codes pointed to the battery and inverter replacement. Will find out today.
Thanks for the reply and will keep you posted if it works or not.
#53 of 105 Re: Car WON"T START [stevegold]
Nov 04, 2009 (4:26 pm)
Just got the update...replaced the camshaft sensor and got the software upgrade...the tech actually thought it did the trick, but after a few miles and going up a hill...car started to hiccup again and flashed the dash. When he got back, codes were saying that it was still the recharable battery. Well it was a $400 dollar experiment, but was alot better than hitting that $4k initial price tag. Any other thoughts or suggestions are duely appreciated.
#54 of 105 system upgraded & camshaft sensor replaced but....
Nov 04, 2009 (11:24 pm)
Recently got a system upgrade for my '05 prius w/157k miles on it. Also got the camshaft sensor replaced. It sort of worked...
Toyota Tech is telling me that lights came back on and still reporting that the battery needs replacing.
I did a test run tonight and ran the car for over an hour at 80mph. Hiccuped a few times during acceleration, but held all the way. The main difference is that my energy moniter is acting more normal. Before the service, it was at fully green capacity...to the top for an entire week...not much power being transferred to assist the engine. That is now in the blue range which is working good.
The same or bad thing is that my engine continues to run while I am at a complete stop...a really slow idle, but never turns off any more. The other issue is that my recharable battery cooling fan in the back seat does not turn off. I am still contemplating on switching out the battery....I am also considering doing an aftermarket upgrade that will give me the first 60 miles on electric and then shift it over to the hybrid side...more costly, but feels like i'm tossing away my 4k with another toyota battery. PLUS, thier warranty for the battery is unlimited miles for up to one year. What happend to the 100k warranty...so if this fails after a year again, then I'm back to square one.
Sorry...just venting because this is the fourth dealer I went to...all with different outcomes....prius techs or just people guessing at the codes that pop up on the screen...your guess is as good as mine!
#55 of 105 Re: Dealer suggesting battery & possible inverter replacement... [jonnied]
Jan 21, 2010 (1:02 am)
To see if your HV Battery is ok, run your engine while in Park, and watch the display that shows your green battery. It should charge up to all green. Another check, run engine in park for 10 minutes, then shift to drive. The engine should shut off, and it should be powered by electric power at slow speeds, if your battery is in good shape, and charging system good shape too. Oh, need to shut off air cond., defroster, heater, and accesories, and lights before testing.
#56 of 105 Re: system upgraded & camshaft sensor replaced but.... [jonnied]
Jan 21, 2010 (4:43 am)
This is the first serious battery problem that I've read about. I think the 100K mile guarantee has to cover more than one year, If you drove that much, they'd disallow
coverage on the grounds that it was commercial usage.
Try getting a Toyota rep to come to the dealer that was most cooperative.
I had a serious question when my 2004 was new and Toyota sent a rep to Glenwood Springs, CO, to drive my Prius up a long mountain pass side by side with the dealers demo to see if I had a real problem, which I did not. I now have 55,000 miles with the understanding that my battery is still under warrantee.
#57 of 105 Re: gas engine won't engage [mtpress]
Feb 08, 2010 (9:32 pm)
Sorry, I don't know what caused your problem, hopefully they got it fixed. I live close to, and have driven thru mountains, and live in alot of cold weather,, with no problem as far as mountain driving. I have other problems, not related to high altitude. Cold weather needs a well charged up 12 volt battery,plenty of fuel in the tank to prevent ice forming, and a clean air filter cause of less oxygen.I just learned to doing that from living in a cold climate for many moons, I mean many years. thanks, johnwyo but those two things I don't think, would cause what you experienced with your car.
#58 of 105 Re: Similar Problem ... Gas Engine won't start [h_2b_a]
Feb 08, 2010 (9:52 pm)
I apologize, I do not have advice to help. If I could ask some more details, Does the car have greatly reduced power, when it runs electric power only
#59 of 105 Re: Runs Hard, Vibrates over 60mph (now 50) [dono0034]
Feb 08, 2010 (10:15 pm)
I would make sure all my tires have enough air in them. Then, if it vibrates at only at a certain speed range,10 to 15 mph consecutive, range,ex. vibrates from 55 to 68 mph, that can be a tire out of balance. Need to have tire rebalanced. You could put your spare tire on each tire, until you find which one it is. Alot of work, but i'm dumb enough where I have done it myself. Or, have a friend follow behind you, and try to spot a vibrating tire. In your steering wheel ,(vibration), then your front tires. I gave you some of the more common causes, there are other causes, but usually occur with car with well over 100,000 miles, and driving thru many potholes, mabey over a curb or two, HA HA anyway, johnwyo I ran over a curb or two in my day.Still do.
#60 of 105 Re: Dealer suggesting battery & possible inverter replacement... [jonnied]
Feb 15, 2010 (11:35 am)
My 2005 Prius with 80K miles has done the same thing (same symptoms, always on the freeway) four times starting in Dec 2009. It is at the dealer now. The last time I took it in (Jan 10) this dealer consulted Toyota and they "recommended" replacing the the fuel pump, which requires replacing the gas tank and costs $1000+. The dealer's service supervisor offered that they were not sure it was the fuel pump and suggested driving it in the hope that they could diagnose it with additional information. They did not mention replacing the battery or inverter.