1993 K1500 5.7
Hey guys, looking for a little direction here, as I haven’t been able to find anything with my combination of issues.
Last summer ‘21 my transmission overheated pulling a buddies big pontoon. Pulled over and let it cool, topped it off, ran fine again for a long time until now.
Went on an hour and a half long trip this weekend and completely lost fourth gear. It has been having issues getting there for a few weeks now but as of yesterday it’s completely gone. Was still able to get home and it walked through 1-3 seamlessly, but there is now a second or so lag between R and 1 sometimes, at least that day there was. My check engine light stays on most of the time for EGR, but I checked it as soon as I made it home and it threw Code 28 and 58. Pressure switch and temperature sensor (both transmission) I believe. Few things I’m wondering about -
Code 58:
My question is could running it with high RPMs (~3K) at highway speeds for so long cause it to throw a 58 by running much hotter without the 4th gear? Does it work like that? Or is it saying that the temp. sensor itself has failed?
Code 28:
Did the overheating last summer cause this sensor to fail? How common are failures like this after overhearing?
And then finally - I’ve never torn into a transmission, but I consider myself mechanically inclined. How hard of a job is it fixing these two issues? I’ve got a guy that can rebuild these trannys in a day, but I always like to at least look into myself first.
Or is this basically tell-tale that the tranny is on the way out after overheating this summer?
Hey guys, looking for a little direction here, as I haven’t been able to find anything with my combination of issues.
Last summer ‘21 my transmission overheated pulling a buddies big pontoon. Pulled over and let it cool, topped it off, ran fine again for a long time until now.
Went on an hour and a half long trip this weekend and completely lost fourth gear. It has been having issues getting there for a few weeks now but as of yesterday it’s completely gone. Was still able to get home and it walked through 1-3 seamlessly, but there is now a second or so lag between R and 1 sometimes, at least that day there was. My check engine light stays on most of the time for EGR, but I checked it as soon as I made it home and it threw Code 28 and 58. Pressure switch and temperature sensor (both transmission) I believe. Few things I’m wondering about -
Code 58:
My question is could running it with high RPMs (~3K) at highway speeds for so long cause it to throw a 58 by running much hotter without the 4th gear? Does it work like that? Or is it saying that the temp. sensor itself has failed?
Code 28:
Did the overheating last summer cause this sensor to fail? How common are failures like this after overhearing?
And then finally - I’ve never torn into a transmission, but I consider myself mechanically inclined. How hard of a job is it fixing these two issues? I’ve got a guy that can rebuild these trannys in a day, but I always like to at least look into myself first.
Or is this basically tell-tale that the tranny is on the way out after overheating this summer?