Vaccum leak/torque converter engine code

SOURCE: torque converter circuit stuck in

TCC stuck open in a 4T60E can be either the TCC solenoid gone bad,or the actual TCC valve and bore in the valvebody is worn out.I rebuild transmissions for a living,and i have a reamer for the TCC bore that oversizes the bore,and then install an aftermarket oversized valve to restore hydraulic integrity.What happens is,the valve is PWM (pulse width modulated) which means it basically vibrates in the bore,and strokes many many times per second.Well,all this pulsing wears out the bore,so it must be oversized.But when the bore becomes worn out,sometimes the valve will literally get stuck and won't move.

SOURCE: torgue converter circuit stuck open

youll have to take it to a transmission shop to change the torque converter lockup switch because you'll have to remove the valve body on the transmission to get to it

SOURCE: Have a leak under passenger side dash when it rains. I think the door under the cabin air filter isnt closing is it an easy fix

Having just repaired this problem in a 1998 Buick Regal, I can tell you that fixing the water leak is actually quite easy. It took me quite a while to track down the source of water, but I have discovered that it comes through the cabin air filter. There is a seal on the passenger side of the cowl (A two piece unit, black plastic, against the windshield) that seals it to the windshield to prevent water infiltration. It is very small and somewhat hard to miss. I took the cowl off to change the filter when I discovered this.

You can make a diverter to go over the air filter under the cowl, or even easier is to use some clear RTV silicone (avalible at any automotive and most hardware stores) and put a good bead on the old seal. When you re-install the plastic cowl, be carefull where it goes against the windshield to make sure you don't "smear" the silicone. After you re-install the plastic retainer hardware, smooth out the bead and clean up the excess silicone(a wet finger and some old cardboard works great). Let it dry and clean up the water in the passenger compartment.

Cleaning up the water is the hard part. Removing the plastic trim around the door (if you grasp the trip peices firmly they just pull up off some metal clips,but they can be quite stubborn) you will notice the carpet just pulls up. At the bottom front corner of the front doors the carpet has a plastic hook that is around one of the trim clips. Lift it off that and the rest of the carpet towards the firewall just pulls up. If it has been a long problem, your carpet may be moldy. Also, the carpet edges and some of the more hidden panel clips are very sharp and may cut you while you are poking around, so be carefull.

Since the water entered through the air filter and right over the fan, you will at minimum want to replace the filter. I had mold and moss growing on mine. My fan also squeels and chirps now, so I know it got wet. Not much to do about that but replace it or carefully lubricate the motor.

In your question you mentioned a door underneath the filter not closing. On my '98 Buick Regal there is no door or valve of any sort. The filter sits right above the fan blades. It is the cowel's job to prevent water from entering this part of the vehicle. I hope this helps you fix your problem.

Marvin

• 85242 Answers
• Posted on Jul 26, 2010

SOURCE: torque converter circuit stuck on where is it

it is part of the transmission torque converter clutch this is inside the bell housing, the trans must be removed to change the torque converter

SOURCE: 1999 Buick Regal LS check

torque convertor solenoid in trans. bad