I have a '03 Excursion w/6.0 & torqueshift trans and last Thurs. I was driving it and the check gauges & check engine light came on and the trans temp was reading hot. I stoped pulled the stick and the fluid didn't feel hot to the touch. As soon as I pulled out the tow/haul light started to blink and the trans started to shift hard (default mode?) I took it home and after it got cold every thing went back to normal but the check engine light stayed on. After a short drive (5 miles) the trans temp shot back up suddenly and it did the same thing so I let it get cold again hooked up the scan tool to and and got the codes P0700 (trans control sys error), P0710 (trans fluid temp sensor circuit error), P0713 (trans fluid temp sensor circuit high input) I drove it and watched the trans temp on the scan tool and it went up slowly till it hit 140 the it went to -62 and back to hot on the trans gauge & blinking tow/haul light. I figured a bad trans temp sensor so I changed it today and sure enough the the trans temp runs normal again on the gauge and the scan tool, trans works perfect with no more blinking tow/haul mode light but I can't get the check engine light to go out and the codes for the trans temp sensor won't clear
I dove it 80 miles and it keeps working and shifting fine. Any suggestions about the codes & check engine light ??