Transmission worries

[mmh64]

I did a brake launch for first time since tuned. Traction control off. Really dug in and took off. Front tires chirping. Then immediately and suddenly no power to the wheels and engine raced. I let off and braked to a stop, still in drive. I just sit there with my foot on the brake for a minute with a sick feeling. I destroyed a torque converter on another car years ago, WOT from a stop, and it felt exactly like this. I had to tow that car and rebuild the trans. The only difference here is I drove away with car acting totaly normal. I am relieved but worried. What could cause this? Did 3 drain/fills on Trans 17000 miles ago. Changed ptu and rdu fluid 14000 miles ago. Because of this I'm doing both trans and ptu again tommorow. Other than fluid changes I don't know what else to do. Have 67xxx on odometer.

 

[SHOdded]

Probably just car saving itself, sensing loss of traction/control. What tires are on the car and how much tread remaining? Ambient temps? What rpm did you launch at (1800-2000 is ideal at stock pressures when tuned)?

 

[mmh64]

I was hoping it was what your saying loss of traction. When loss of traction has occurred in the past, ignition timing feels ******** and it just bogs. This seemed different. It was a complete disengagement of drive train feeling with engine reving. Tires are Goodyear eagle rs-a. Good tread life. 32psi. 43 degrees out. Launch may have been slightly above 2000. Possibly too high and contributing to loss of tration.

 

[SilverSH0]

Engine racing would be a concern to me. When I first got tuned I did the same thing. But the tires spun, it started to take off, and then bogged down hard. The engine didn't race, it was almost as if the engine turned off for a second. Obviously the car sensed the wheels spinning and with my non-PP I cannot completely turn off TC and engaged it to cut power (even with the "basic" TC off).

 

[SHOdded]

TSB regarding 5th gear start from stop that may apply.
10-21-02 - 6F50/6F55 TRANSMISSION - SLIP/NEUTRAL OUT, 5TH GEAR START FROM STOP, ELECTRONIC PRNDL ERROR, BACKUP CAMERA IN D - BUILT 3/13/2009-6/30/2010
http://www.ecoboostperformanceforum.com/index.php/topic,496.msg23786.html#msg23786

 

[mmh64]

TSB regarding 5th gear start from stop that may apply.
10-21-02 - 6F50/6F55 TRANSMISSION - SLIP/NEUTRAL OUT, 5TH GEAR START FROM STOP, ELECTRONIC PRNDL ERROR, BACKUP CAMERA IN D - BUILT 3/13/2009-6/30/2010
http://www.ecoboostperformanceforum.com/index.php/topic,496.msg23786.html#msg23786

I accually had cel regarding TR sensor occur when I loaded the tune. I thought it to be a normal weird thing that happens when loading but may be related. I cleared code loaded tune and cel has never re-occured. TSB is limited to build date. Where do I find that? Upper left on this sticker?

 

[Livernois Motorsports]

You cannot turn off T/C on a non-PP car. Also the Advantrac and TQ MGT systems will step in and stop you from freely spinning the wheels. If your tires are overinflated this can exacerbate the car's reaction. Some other factors that will contribute to a situation like this are the trans not being up to operating temps, your trans not having enough fluid in it and the trans fluid cavitating.

 

[2011TAURUSSEL]

TSB Covers 3/13/09 to 6/31/10....Your build date 10/09 I would check with dealer to see if the TSB had been complied with.

 

[SHOdded]

Look up build info at http://www.etis.ford.com, input the VIN there.

 

[mmh64]

Okay, all good advice. I'm hoping this was just the car saving itself. I probably launched with too high rpm and lost traction. Fluid level is good. I am doing drain and fill today to be more assured of the quality. I will also check TSB and if not done possibly having dealer, as much as I hate to, do the TSB. This may be nothing to be worried about. It's hard to type and post with my fingers crossed but will post my findings when available. Thanks all for the feedback.

 

[Livernois Motorsports]

You can always run a PINT heavy as well to help fight cavitation.

 

[mmh64]

You can always run a PINT heavy as well to help fight cavitation.

Never heard of this. It's OK to take it to max line then add 1 pint?

 

[SHOnUup4]

Was the car up to operating temps?

In 40* weather it will take 15 minute idle to get coolant levels to operating temps, then another 15 minutes of driving to get the trans up to a decent temp (125*)...any WOT pulls prior to this temp can result in a missed gear change and a loss of power.

Sent from my SM-N920V using Tapatalk

 

[mmh64]

Was the car up to operating temps?

In 40* weather it will take 15 minute idle to get coolant levels to operating temps, then another 15 minutes of driving to get the trans up to a decent temp (125*)...any WOT pulls prior to this temp can result in a missed gear change and a loss of power.

Sent from my SM-N920V using Tapatalk

No idling but twenty minutes of normal driving prior to my horseplay. Good point, this was mentioned and possibly a contribution. Coolant temp was in range but trans may not have been warmed up. I will definitely keep that in mind. Drive an agonizing 30 minutes or more like normal. Then put my racing boots on.

 

[SHOnUup4]

I keep track of trans temp, and it is very slow to heat up in cold weather...you probably notice the shifting during a cold start & go is quite sluggish. It's holding gears longer on purpose to get it up to temp...and can cause the missed shift in doing so.

Sent from my SM-N920V using Tapatalk

 

[mmh64]

I keep track of trans temp, and it is very slow to heat up in cold weather...you probably notice the shifting during a cold start & go is quite sluggish. It's holding gears longer on purpose to get it up to temp...and can cause the missed shift in doing so.

Sent from my SM-N920V using Tapatalk

Is there a transmission temperature sensor on 2010s ? If so I should be able to monitor this input on tourque pro app. I looked when setting up the app. some time ago and don't remember seeing this as a monitor option. I'll look again and monitor this if possible.

 

[SHOnUup4]

First page on this thread is the holy grail to Torque Pro IMO.

http://www.ecoboostperformanceforum.com/index.php?topic=3141.0



Sent from my SM-N920V using Tapatalk

 

[markathome]

I had all the symptoms of that TSB. However, each was very very rare and annoying. After the dealer performed it, it has been fine since. It is a must do...
My issues:
1) Entered an intersection, car stopped and rear camera came on. After a few seconds, it continued on as if no issue.
2) On an entrance ramp, going around 45, went to full throttle, engine revved and all power gone, let off, kept rolling and a few seconds later, all OK.
After a few weeks of complaints, getting Ford involved, data logging on car, Ford came out with the TSB.

Sent from my XT1094 using Tapatalk

 

[SilverSH0]

You cannot turn off T/C on a non-PP car. Also the Advantrac and TQ MGT systems will step in and stop you from freely spinning the wheels. If your tires are overinflated this can exacerbate the car's reaction. Some other factors that will contribute to a situation like this are the trans not being up to operating temps, your trans not having enough fluid in it and the trans fluid cavitating.

Is this just a 13+ thing? My 2010 is non-PP but when I press the button with a car with lines behind it the display says "Trac OFF". I know it doesn't turn off all the nannies, but I figured Trac OFF would disable traction control.

 

[brucelinc]

Is this just a 13+ thing? My 2010 is non-PP but when I press the button with a car with lines behind it the display says "Trac OFF". I know it doesn't turn off all the nannies, but I figured Trac OFF would disable traction control.

I have NEVER had the traction control kick in after pressing the button to turn it off...........UNLESS I am attempting to turn and spin the wheels at the same time. In that instance, the stability control takes over and cuts power. However, when going straight, such as at the drag strip, I have never had traction control cut power......EXCEPT one time when I forgot to turn it off. I suppose that if the track is not well prepped and the car has sufficient power, it could attempt to spin sideways enough to cause the stability control to take over, but I have never had that happen.