My torque converter lock up feels like it is engaging and disengaging repeatedly from 40 miles an hour on up. Sometimes it does this every few seconds, sometimes it locks up for a few seconds and some times it seems like only a split second but it never stays locked for more than
15 seconds. If I let the truck shift into O/D...it will only stay briefly as the torque convertor disengages and drops the thing into 3rd again. I tested cruise control and it drops out as well....makes sense..sort of.The truck seems to shift properly from a stop, thru first, second and third without issue.....this only starts once I get up around 45 or so.
Chrysler service center has no idea so I took it to AAMCO......AAMCO is spending a lot of time diligently checking everything, (they've had it for a week)so far no success although they can see the pressure at the torque convertor clutch drops off to 30 PSI when the problem occurs. Someone from Chrysler said it is likely a problem with the Throttle Position Sensor but the guys at AAMCO say it doesn't have one...(not sure as I'm with them on that....can anyone tell me where it is located if it has one...and what it looks like).
Needless to say, when I'm driving, especially if I'm towing my trailer, I need to leave O/D turned off to minimize the carnage but the torque converter clutch engages and disengages every few seconds, repeatedly, for the whole trip.......up hill, on the flat, accelerating, you name it.
Any ideas anyone.
Rob