
Originally Posted by
RedHeartbeat
If you have 1st and 2nd gears and can feel the shift between the two, chances are that you have burned out the clutches in the trans or simply have a 2-3 shift solenoid burned out or plugged up. If your truck starts out in 2nd gear and you don't get a 3rd gear shift you likely have an electrical issue in the power supply to the transmission. From your description it sounds like the solenoid is burned out or the clutches are gone. Let it set overnight and then drop the pan. If it has a lot of brown settlement in the bottom of the pan, your clutches are gone most likely. If only a light amount of settlement you may be lucky and just have a solenoid issue. I would take it by a transmission shop first and have them put their scanner on it to see if they can diagnose it for you and get a quote for the repair. Most places won't charge for the diagnosis and you will be able to make your decision which way to go in the repair process.