- #2 of 66
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Lost power
by mikejl
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Oct 03, 2006 (8:12 am)
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I took a trip over the weekend and had a disturbing experience. I was traveling in the farthest left of four lanes going through Baltimore when my Tribeca started slowing down. I pressed on the gas pedal and got nothing in response. I pressed harder and got nothing. Totally non-responsive. The car continued to slow so I made my way through the three lanes to my right and stopped on the berm.
The engine did not stall. When traffic cleared, I hit the gas and tried to continue the journey. The car revved up and started moving, but it wouldn't shift out of first (or maybe second) gear. I quickly backed off and stopped again.
I had the car in 'Sport' mode, like I usually do. The second time I stopped, I put the car in Park. Again the traffic cleared and I again tried to resume my trip. This time, the car accelerated normally (not in Sport mode) and I have had no further problems in the 500 miles since. Some of that distance was in Sport mode, so I'm not sure that was any part of the problem.
Have any of you had anything similar happen? I want to get this to a dealer to be checked, but I can't do it immediately. In the meantime, I am on alert.
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- #3 of 66
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Re: Lost power [mikejl]
by tupin
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Oct 03, 2006 (12:27 pm)
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Replying to: mikejl (Oct 03, 2006 8:12 am)
wow...scarry story. So it sounds like prolonged sport mode use triggered some problems. I wonder if you had popped it right back to normal mode if this would have eliminated the problem? Either that or something wrong with the accelerator cable?? So the engine wouldn't even rev up?!?! Musta been a helpless feeling!
Sounds like one of those hard to figure out problems as you can be sure you won't be able to replicate the problem for the dealer.
Keep us up to date.
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- #4 of 66
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Re: Lost power [tupin]
by subearu
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Oct 03, 2006 (1:07 pm)
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Replying to: tupin (Oct 03, 2006 12:27 pm)
No flashing AT light or anything? There is not a "cable", it's a drive by wire system.
-Brian
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- #5 of 66
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Re: Lost power [tupin]
by aka1
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Oct 03, 2006 (7:22 pm)
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Replying to: tupin (Oct 03, 2006 12:27 pm)
My worst fear is that the transmission is not suitably designed to handle the weight of the B9 and may overheat and fail prematurely and abruptly...
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- #6 of 66
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Re: Lost power [aka1]
by tupin
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Oct 04, 2006 (3:16 am)
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Replying to: aka1 (Oct 03, 2006 7:22 pm)
Given that the transmission is designed to carry 2000lbs in towing weight without a separate cooler (3500 with a cooler) then I think it should be ok. If you have concerns, simply install the transmission cooler that comes with the tow package.
The fact that this person who had trouble couldn't even get the engine to rev up makes me wonder if it is a transmission issue. Sounds like the transmission was willing but not the engine....really kinda strange but to start saying the transmission is not suitably designed is a little premature.
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- #7 of 66
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Re: Lost power [tupin]
by mikejl
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Oct 04, 2006 (3:58 am)
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Replying to: tupin (Oct 04, 2006 3:16 am)
Electronic accelerator, electronic transmission, etc. My guess is it was an electronic glitch of some sort and I don't know of any way to replicate it. I hope a code shows up when they run diagnostics that will point to a problem, but that's pretty iffy, too.
I suspect there is nothing that can be done to fix it unless some additional diagnostic information shows up, but I am nearly at 36,000 miles, so I need to get this registered as a problem before I am out of warranty.
I posted here to benefit from any previous experience anyone may have had, but this sounds like a unique problem, at least so far.
I will post an update after it's been looked at.
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- #8 of 66
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Re: Lost power [tupin]
by aka1
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Oct 07, 2006 (7:20 pm)
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Replying to: tupin (Oct 04, 2006 3:16 am)
I've had a transmission fail on me before on my Acura and it was rated for 2000lb's of towing (not that I ever did)- and its not the best thing to fail, considering warranty is usually up by then as well... So, needless to say, my worst fear is STILL that the transmission wasn't designed suitably to handle the weight of my B9.
My transmission does shift abruptly when cold and has an occasional "hiccup" around 25mph when decelerating. My opinion is also that the best transmissions are those from GM.
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- #9 of 66
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Re: Lost power [mikejl]
by mikejl
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Oct 31, 2006 (12:17 pm)
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Replying to: mikejl (Oct 04, 2006 3:58 am)
I did have the car looked at. Whatever the problem was, it left no tracks and it hasn't recurred. If it happens again, I'll post an update.
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- #10 of 66
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Re: Lost power [mikejl]
by 1bcpastor
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Mar 13, 2007 (10:43 pm)
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Replying to: mikejl (Oct 03, 2006 8:12 am)
We've had similar problems. First occurred Dec 'O6. Total loss of power when I tried to accelerate to pass another vehicle. B9 was bought new and only 8 months old. Called dealer & told me to bring it in. We were out of state for Christmas. Took B9 in the next week. They checked it out, it ran perfect for them and computer showed no codes/errors. I've had a few instances of minor similarities, but not to the extent as the Dec. incident. That is until yesterday (3/12/07). Driving on interstate and went to pass and B9 lost all power. Would not accelerate, tach jumped up to 5000, stuck, and then fell to 2800. (B9 has 18000 miles now). Called dealer and told them I was on my way in and asked to have someone ready to drive my car when I get there. I was able to "milk" the accelerator to get up to speed and "limp" in to the dealer. The manager drove it and it had no power for him either (much to his surprise & mine). From a stop, it would shift out of 1st gear fine, but 2nd gear just fell flat to nothing. At cruising speed, any acceleration to pass would be total loss of power. I have a loaner now while they check mine out. They called today and said the computer shows no errors/codes and everything is fine. But their manager drove the car and experienced for himself exactly what was going on. Of course it will not do it again for the service techs. The service dept. also informed me that there was an update issued for the TPS (Throttle Position Sensor) for the B9 (that was not listed in Dec '06) and that update was applied to my car today. He said there is also an update to eliminate the hard cold shift trouble as well. I asked the when & why for the TPS update. He could not answer but said he would research it. A couple hours later he called back and said he could get papers from the Pentagon easier than trying to figure the when & why for this update. He said he feels confident this should solve our problem (though their computer says my B9 has no problem). I'm leaning toward computer/electrical trouble or transmission personally. I called SOA customer service to inquire. They said "no updates have been issued for the B9." But they would contact the dealer to see which updates were applied and call me back tomorrow. While waiting, I thought I would do my own research to see if my problem has happened to others. We have been very pleased with the B9 except for this power issue. Now it's twice in less than 3 months (less than a year overall). I thought I would see if yours has recurred or others experience anything similar. This may be a one (or 2) in a thousand incident. I will post a response when I hear from SOA. Hope someone can figure this out. Thanks for your post.
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