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Transmission Traumas?

2455 messages,  Last post on Jun 09, 2012 at 6:39 PM

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What is this discussion about? Transmission

Messages Page 246 of 246

#2451 of 2455 Volvo V70 tranny moment? by ronsteve

Jun 07, 2012 (6:24 pm)

Weekend before last I had a transmission episode with my 2006 V70 2.5T. Wondering if it's a fluke thing, or a sign of something more sinister to come.
  
I was driving on a through street in Madison, 30 mph speed limit and a bit hilly. Going up one of the hills at 25-30mph, I felt it "gear-hunting" for a couple seconds, after which it settled into 3rd. Didn't think anything of it until I got to the top of the hill, and it stayed in 3rd. I put it in manual mode and upshifted to 4th, which worked. BUT... when I went back to D, it shifted back into 3rd even though I was doing between 35-40mph on flat road. So back to manual mode and forced 4th again.
  
A mile or two later, I came to a red light. Put it back into D, and it has shifted without incident ever since.
  
The car has almost 97K miles on it, and the extended warranty expires at the end of the month. Is it worth leaving with them for a day to see if they can duplicate the problem and better troubleshoot it? Anyone else had this happen, and what were the eventual results?

#2452 of 2455 Re: Volvo V70 tranny moment? [ronsteve] by Mr_Shiftright HOST

Jun 08, 2012 (9:27 am)

Replying to: ronsteve (Jun 07, 2012 6:24 pm)
Well I'd bring it in to see if a transmission trouble code was stored---in this way, you'd have a record of a problem on file, even if they didn't end up fixing anything.
 
Not necessarily an indication of anything dire---have you had a transmission service lately?

#2453 of 2455 Re: Volvo V70 tranny moment? [Mr_Shiftright] by ronsteve

Jun 09, 2012 (9:44 am)

Replying to: Mr_Shiftright (Jun 08, 2012 9:27 am)
Thanks to Volvo and their "lifetime" transmission fluid/service, no it hasn't been serviced. I'll see what they think.
 
Also, I should mention that I had it in for a routine oil change, and they said it hadn't stored any transmission trouble codes, and that the only thing to do would be to leave it with the shop foreman, and a detail description of what happened, so he can drive it and see if he can duplicate the problem. I think there's some hills/streets around Louisville that would resemble where I had the issue up in Mad-town.

#2454 of 2455 Re: Volvo V70 tranny moment? [ronsteve] by Mr_Shiftright HOST

Jun 09, 2012 (6:39 pm)

Replying to: ronsteve (Jun 09, 2012 9:44 am)
Well could be some electronic glitch mostly likely---the TCM reads various data from speed sensors and gear selector position, etc, and then sends signals to the various solenoids. These units are pretty complex and it's hard to guess what's up without testing. Usually "hunting" means some sort of confusion in the transmission's brain.

Messages Page 246 of 246

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