1997 5.2 tow/haul switch
your tow/haul switch is just the overdrive to see if it is working go down the highway at like 65-70 miles an hour with it off, your tach should read like 2000 rpms then press the tow/haul button on (overdrive will turn off) and your tach should jump up to about 3000 rpms, if it does not then I would say that you have a problem.


