Its about time I start having trans issues

[350dieselsmk]

On my way home from school today i was on the highway and a chevy pulled up and started ****. so I had to give it back. I floored my truck a few times and past it just to show him that fords are better. About 2 miles later i noticed my my O/D light was blinking. I imediatly slowed down and pulled off at the exit that was right there. the truck would not shift out of O/D unless i turned it off with the button. i pulled into a mcdonalds off the highway and let it sit in neutral for a while idling and then turned it off. checked my my fluids wich were red and did not smell very burnt. there was a little black on the plastic i think it was just from the dip tube because it was not in the fluid itself. started the truck back up and the light was off. it seemed to be shifting all right. this was in stock setting on my TS chip. when i was showing the Chevy up it was in 140. I have had the chip for a while and have not had issues with it until today. I know the light will come off from heat but will it also not shift when its hot and then go back to shifting normal? I think my trans is on its way out but would like some input

[350dieselsmk]

99.5 f350. 175xxx miles forgot to mention that

[Jarrod B]

prolly. but just keep an eye on it. but dayum. im at 131k and that means i have 40k to go before a trans rebuild

[99PSD-White]

my trans went out at 150,000 miles lol

[350dieselsmk]

think i should change fluid? is there a good write up on how to do that?

[Jarrod B]

changing fluid might make it worse. when transmissions wear down, they put the wear particles in the oil and makes it somewhat thicker for the moving parts. put new fluid in and it lost that thickness and might slip more. the best is take it to a trans shop for diagnostics.

[350dieselsmk]

alright. I have to drive pretty far today back to school. we will see how it is. ill get diagnostics done this week

[bjg8599]

i generally call that light the I need a new transmission light. Sorry but your trans probably will not last much longer. that light is detecting something slipping, burning, or meshing. get the codes pulled and we will go from there. I have the master mech book on those trannies and i will tell you what it is if you can find the code number.

[ipz2222]

Please jarod, that statement is completly wrong. That is an old mechanics tale from the
'50s.

[350dieselsmk]

haven't seen the light now since Friday and Friday was the first time i have ever seen it. will a code still come up if I hook the truck up?