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Toyota Highlander Hybrid Engine Questions

30 messages,  Last post on Sep 17, 2009 at 8:38 AM

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What is this discussion about? Engine, SUV

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#20 of 30 Re: HH Just Won't Start [wildgoosechase] by wildgoosechase Mar 29, 2008 (11:41 am)
Replying to: wildgoosechase (Mar 24, 2008 3:12 pm) NOW STARTING AND RUNNING WELL since the engine oil level was corrected. MPG has improved too over the same terrain, but that may also be influenced by less heated use. -CW
#21 of 30 Re: HH Just Won't Start [jasker] by jasker Mar 29, 2008 (12:15 pm)
Replying to: jasker (Mar 29, 2008 10:31 am) Update on my problem:  Okay it's shift to P when starting not parking first off. I went back out and had my camera ready and it started of course. But 15 minutes later I had the shift to p message again. This time I took the picture of it. Also tried it once more right afterwards and then another problem occurred. The whole screen went blank with only the green bulb and the doors open light with no sound from the engine at all. It was like the battery was dead. Then I took the key out and the car started dinging like I still had the key in. The overhead lights were dimmed but stuck on and the parking lights in front of the car are stuck on. The dinging stayed on even when all doors were closed. I'm definitely taking it in now!
#22 of 30 Re: HH Just Won't Start [sdo11] by tony75 Apr 11, 2008 (1:47 pm)
Replying to: sdo11 (Nov 19, 2007 7:02 pm) Hi, I am having the exact same problem and took the car to the dealership. They could not find anything wrong, and also claimed that they had never heard of this problem before. They tried to tell me that I didn't drive the car enough or that I left the lights on. Thats when I got mad. Have you had any success in solving the problem? Replies to this message: jasker (Apr 12, 2008 7:17 pm)
#23 of 30 Re: HH Just Won't Start [tony75] by jasker Apr 12, 2008 (7:17 pm)
Replying to: tony75 (Apr 11, 2008 1:47 pm) I did take it to the dealer. They said it was the battery and replaced under warranty. So far I have had no problems since. We have had this problem for almost 6 months and we remembered later that we called the dealer the first time it happened and they told us to check the gas tank and make sure to click it 3 times which is similar to another posting. The problem went away for a while after that but came back. Hopefully it's solved now. Did they replace your battery?
#24 of 30 Car will not start and is making a weird noise by jldavis Jun 24, 2008 (8:18 pm)
Out of the blue, my car would not start tonight. It's brand new - 2008, and 6000 miles. It's been working wonderfully, but is is dead as a doorknob. Would not even attempt starting. The door light was on, but extremly dim. Something under the hood was making a very meek pathethic sort of whirring noise.   I did recently have an oil change, and have gotten the Shift to P message - both seem to have been mentioned in other forum postings where the HiHy does not start, but I did not see anyone posting about the weird noise too.   Any ideas? Replies to this message: rodonnell (Jun 25, 2008 9:58 am) stevedebi (Jun 25, 2008 1:50 pm)
#25 of 30 Re: Car will not start and is making a weird noise [jldavis] by rodonnell Jun 25, 2008 (9:58 am)
Replying to: jldavis (Jun 24, 2008 8:18 pm) While I have not experienced this problem, (yet) I suspect it is related to the battery. The door light dim is a dead giveaway that the battery is low. Probably not related to the oil change, more likely a light was left on. The whirring noise is a normal sound, although it may be weak because of the battery as well. There are several systems that get powered up when you turn the key, the water pump and power steering to name two. I think the "Shift to P" is also a symptom of the battery charge state being low as well. Computers do not like to operate with a low voltage condition.   May I suggest you perform a test of the battery charge. Should be fully charged and between 12 and 12.5 volts.   If you cannot start the engine, try a jump start like you would with any other vehicle. Once running measure the battery voltage again, should be more than 12.5 volts, between 13 and 15 would be normal.   If this fails, it seems a trip to the dealer is in order.   I am beginning to think there is a systematic failure in the charging systems for HH based on what I have been reading in these posts. I have a hard time believing all the people experiencing problems with the battery running down and failing is because the owners have left a light on. Replies to this message: stevedebi (Jun 25, 2008 1:50 pm)
#26 of 30 Re: Car will not start and is making a weird noise [rodonnell] by stevedebi Jun 25, 2008 (1:50 pm)
Replying to: rodonnell (Jun 25, 2008 9:58 am) " I have a hard time believing all the people experiencing problems with the battery running down and failing is because the owners have left a light on. "   You would think that Toyota would have sprung the 50 cents or so for a circuit to shut off the interior lights after 10 minutes. My last three cars have had this feature.
#27 of 30 Timing Belt Change Interval? by gree May 09, 2009 (6:01 pm)
We've accumulated 85,000 miles on our 2006 Highlander Hybrid, and I'm wondering what Toyota recommends as the timing belt change interval. Does anyone know?   BTW, so for our only failure has been a window lift motor, under warrantee. Replies to this message: wvgasguy (May 12, 2009 4:02 am) rodonnell (Sep 17, 2009 8:38 am)
#28 of 30 Re: Timing Belt Change Interval? [gree] by wvgasguy May 12, 2009 (4:02 am)
Replying to: gree (May 09, 2009 6:01 pm) It would be in the owners manual if it's a recommended change. Check there.
#29 of 30 Hybrid ECU Failed by colcbp Sep 01, 2009 (12:09 pm)
Interesting issue. One day a few weeks ago when temp reached 115 in parking lot at work. Drove in to work at 8AM, HH 2006 Limited 2WD, 60,440 mi. Parked in parking lot all day cam out at 4PM to go home thermo in dash said outside ground temp 115.   Car started like dream. Drove out of PL made a couple of stops to merge. couple of L&R Turns. Then enroute to freeway entrance accelerated and moved to center lane to pass city bus disgorging passengers. All of sudden warning displays all over, but no bells, saying "hybrid failure, go to service" of words to that effect.   Luckily work only 10mins from Toyota Dealer and was able to avoid getting onto freeway and take back road to dealership. Left car running with failure displayed on dash for all to see. Grabbed my serivce writer and then sat down for what turned out to be 2hr wait.   End result was diagnosed as ECU failure but part out of stock. Dealer was able to reset/overcome failure mode and let me drive off, thinking part was coming from CA and I could come back in three days to get fix (covered under Hybrid warranty.)   Had two appointments canx as part remained out of stock, and then magically delivered.   After two hours of work I have had car back now nearly two weeks. Runs like a dream and even the problem I had when travelling at 70mph and feeling car hunt as it tried to maintain steady speed has gone away (even though dealer had "reprogrammed" ECU firmware about three months ago -- and complaint still remained.)   Was wondering if others had this problem, especially since ECU was so hard to come by. Either this ECU (failed little so no need for stocks in USA) or (failed a lot and spares across USA were being depleted as a result.)   Thoughts, comments?   Chuck

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