TCC Solenoid, not kicking down when it should?

[SLAMMED91]

'93 Talon TSI AWD Auto.
HKS performace mods done.
Very well running car (Tranny replaced about a year ago)

All perfomance mods and tranny swap done by Archer Performance (Duuth, MN.)

My question is: Where is the TCC Solenoid and how can you tell for sure if it is malfunctioning?

Since I bought the car (about a 1.5 weeks ago) I have noticed the car doesn't seem to kickdown like other cars I have owned. The tranny shifts great and like I said is fairly new, but I don't notice the it kicking back (when you let of the gas, come to a steady speed) like a TCC should do. A functional TCC is generally meant to better your gas mileage and go easy on the tranny.

This could explain why I am getting about 15 miles to the gallon, and I do not drive it hard very often.

Is there a reason why this would have been unplugged?

Thank you,
SLAMMED

 

[transdude]

The sol. cannot be unplugged without the light flashing. The lock up sol. should be disengaged at closed throttle. I think that what you're noticing is just different trans. operation than you are accustomed to.

 

[ATF 2GTalon]

You can test the solenoid by removing the connector and checking the resistance of it. The connector is next to the battery on top of the tranny. There are 4 pins. Off the top of my head I don't remember what the resistance should be though. Touch one pin with the lead of the multimeter, and ground the other lead and record the resistance. Make a note of what color pin wire was what resistance and I will get back to you on what the reading should be.

And if its not kicking down, you should check the kickdown servo switch. That is facing the front of the car underneath the air box/air snorkel.

 

[transdude]

The kickdown servo switch has nothing to do with kickdown, it is an input that tells the computer if the band is in the released or applied position. To ohm the l.u. sol. off the top of my head, I believe you would check the red wire in the connector(and of course ground with the other lead) around 20 ohms is what to look for. If there are only three wires in the connector, guess what?- Non lock-up unit (there are some made like that).Also, be aware that lock-up in these transmissions is difficult to feel, compared to other cars. But it seems to me that your trans is probably working normally.

 

[SLAMMED91]

Thanks for the responses guys! It may be that it just acts different than other Auto cars that I own, but it seemed odd.

Also, I know a malfunctioning TCC can affect gas mileage, and mine is just terrible right now!

13 miles to the gallon? :wtf: And this was drving the car nicely only hitting the gas hard a little bit!

I have heard the O2 sensors in the DSM's do malfunction and I have not replaced that yet. I might try it though as nothing else seems to be wrong.

Any other suggestions on curing the gas mileage issue?