97 P/S E4oD t/c lock up problem
Hey all, I have a 97 F350 powerstroke with a e4od transmission. Last night I bought a 20 foot poontoon boat and was towing it home. It was shifting lock up unlock back and forth going down the interstate. It would lock unlock in drive and overdrive. I have done a search and seen a brake light switch problem. The trailer brake lights were not working, could it be a problem with the trailer lights causing my T/C lock up problem? Trailer tail lights worked but when I applied brakes trailer lights would dim. It was late and I didn't have time to look at trailer brake lights.
BTW, It has 138K miles and has ran and shifted perfect until last night.