Can someone tell me exactly what this ( PO 742 ) code means. My tranny has an intermittent problem where the torque converter doesn't want to disengage completely. The truck will leave a stop light in low gear and immediately shift to what feels like overdrive or anything inbetween low and high? . It's like the tranny doesn't know what gear it's supposed to be in. The problem may be around for a day, or two, then go away and not show up again for weeks or months. One thing that seems to cure it is a long drive, if it's acting up, and I drive it for a while out of town, it seems to go away then. It finally sent an error code a couple of weeks ago, my buddy's scan tool came up with the 742 code. What needs to be done to permanently fix this problem? Tranny seems fine anytime other than when it has these intermittent fits. Suggestions please. Thanks
I forgot to add that this truck is a 1997 GMC extended cab with a 5.7.
Edited by 97Xcab4x4, 13 February 2007 - 09:40 PM.