overdrive light flashing

[Peirson S]

I have a 2005 expy with 166k on it. Today is a very wet and rainy day, on my wifes way home from work today she said she spun the tires on acceleration from a light, no big deal I thought. I took it out to go get dinner and on my way home I noticed the O/D light started flashing for roughly 30 seconds then cut off. got home, checked the fluid, all sensors and pigtails for a short and nothing. went to take it for another test drive and now the light comes on the second I put in gear (drive only), and consistently flashes now. The transmission is only 10 months old and replaced all sensors btw. I haven't tried pulling codes yet as my shop is closed on the weekends and of course the one time I don't bring my scanner home I have an issue. I'm going to wait till it cools down and see if it only happens at operating temp. I am in no means a transmission expert (I personally hate transmissions) but I do have a lot of mechanical knowledge as I do do this for a living. (Ford and chevy's keeps food on the table for sure lol) but any insight would be appreciated.

 

[Bain64]

1. Swing by Advance Auto or Autozone to scan for codes. Report findings.
2. Check/test/swap transmission solenoid fuse (32?).
3. Is the truck slipping or in limp mode?
4. Do you have use of all 4 gears or is one band shot?

 

[East-TN]

This is a duplicate thread...please post your questions in only one thread.

Thank you.

 

[Peirson S]

alright this is what I got, it has a p0960 and p0748 both referring to "Pressure Control Solenoid A Electrical".

took it for a drive this morning when cold (53degrees outside) and light is still on, so im pretty sure I can rule out torque converter/overheating issue.

Check/test/swap transmission solenoid fuse (32?

I have swapped the fuse out already

Is the truck slipping or in limp mode?

Neither just a hard shift when going into 4th gear, I have use of all gears