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Torque Converter Lockup

7622 Views 7 Replies 3 Participants Last post by  danhasenauer
Hi all,

I have searched these forums, but have not come up with info on my specific problem. My Taurus is having a driveability issue that I think is transmission related. After the car has been driven for several miles and the transmission fluid warmed up to the point that the PCM directs the Torque converter to lockup, it starts having a torque converter lock up problem. When it tries to lock up it seems as though that it can't decide to lock or unlcok. It feels like the car is surging and/or hesitating and after about 3-4 seconds of this, it decides to lock. Its not very harsh, just kind of surges... It does this every time and never changes. I've changed the fluid and filter and it looked normal and it did not change how it drove after it was changed. I'm starting to think that it's torque converter clutch solenoid related... Has anyone else here had this problem? Also, there are no check engine lights. It's a '99 DOHC, AX4N tranny. Car has about 182,000 miles on it and has had the trans fluid changed every 30,000 and has been pampered. It has also had a supplemental trans cooler installed since it had about 100,000 miles on it. Car shifts fine besides the TC lockup issue. Thanks in advance for any help!
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Sounds like TCC solenoid to me. It won't throw a code, either.
That's what i'm thinking too. I just got done spraying all of the bolts with penetrating oil to take out the tranny mount and bracket so I can get the side cover off the trans. This should be a fun job! I see you are from Rochester... I'm just down the road from you in Pembroke. Does your Taurus still have it's rockers underneath the plastic moulding, or are they gone like mine? ;) Gotta love this NY salt.. It's really ashame too since this car probably has a lot of life left in it, except the body..... It's actually quite fun to drive too, that Duratec really has some snot...
Rocker panels? What are those? Hi neighbor!
'Tecs rule!!!
RoseMist was only for '96. You either hate it or you love it.
LX for '96 meant loaded up with options. The only one I'm missing is the factory car phone. Yeah, I dream of a '96 RoseMist SHO, rarest Taurus ever...
Rocker panels?! We don't need no stinkin' rocker panels!
Car weighs less and gets better mileage, the more steel it sheds. I'll be hitting 100 MPG this year! :thumb:
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