I have a 2002 dodge ram 1500 and a low speeds around 20 mph, if I let off the gas before it shifts into 3rd gear it will clunk into gear? I replaced trans fluid, plugs, throttle sensor, solenoid pack, and trans has been relearned 4 times. Someone HELP PLEASE!

It isn't specified. There is more than one fuse that covers transmission. You would need an auto electrician or a transmission expert to connect a pro grade scan tool computer and diagnose if the switch or solenoid is faulty. A scan tool at this level is bi-directional and can command solenoids to operate and confirm that they do.

https://www.google.com/search?q=auto+electrician+near+me

Fuse Box Diagram Dodge Ram 1500/2500 (2002-2009)

https://fuse-box.info > dodge > dodge-ram-1500-2500-...

Fuse box diagram (location and assignment of electrical fuses) for Dodge Ram / Ram Pickup 1500/2500 (2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009).

2006-2009 Dodge Ram 1500/2500/3500 Fuse Box Diagram

https://knigaproavto.ru > ... > Dodge > Ram (Pickup)

Nov 16, 2018 - 2006-2009 Dodge Ram 1500/2500/3500 Fuse Box Diagram ; 5, 20, except Base: Sunroof ; 6, 40, Diesel ('06): Wastegate Solenoid, Drive Fan Radiator ; 6 ...

2006 5.7 ram 1500 fuse box diagram - DodgeForum.com

https://dodgeforum.com > ... > 3rd Gen Ram Tech

3rd Gen Ram Tech - 2006 5.7 ram 1500 fuse box diagram - I was hoping somebody had a fusebox diagram kicking around. The inside of my fuse box cover does not ...

Fuses and relay Dodge Ram 2002-2008

https://fusesdiagram.com > Dodge

Mar 27, 2017 - For Dodge Ram 1500, Dodge Ram 2500, Dodge Ram 3500 - 2002, 2003, 2004, 2005, 2006, 2007, 2008 model year. Cigarette lighter fuse - Fuse box in ..

..

Dash problem. You can change the speedo motor. Done to many. From then till today. Old ones are screw in, new ones are soldered.

When did you last replace trans filter and fluid? Dirt may be causing shift valve to stick.

Did you check the universal joints. Then try a transmission shop if you think it's the trany. Should not be shifting into 3rd at 20 mph for one thing

The symptoms & mileage is enough to tell
you it is time for a rebuild
Being a former police vehicle ,I would have
rebuilt the trans as soon as I got it,working okey
or not.
Forget advice that is typical unless you understand
the context the word was using in.

you may just have bad u-joints they can cause vibration when driving you can or may hear a clunking sound when you put it in gear.

sounds like the speed sensors. there are 2 of them. High and low speed. run about $20 each and are VERY common on dodge's. if you get a code 25 that is the problem.

sounds like trans has gone bad, last service of filter and fluid? clogged screen or low/burnt fluid would effest but if clunking sounds like trans is shot

Two things happen on the Dodge's. 1. the rear O2 sensor shorts out and meses things up. 2. the Inner seal on the Direct drum (3rd) shrinks and causes a delayed up shift.

I had the same problem with my 96 Ram 1500. I thought I was going to have to pull it out and get it rebuilt or just replace it. That was at 134,000Km it's now got 210,000 and shifting like a dream. What I did to solve the problem was this, as follows:
1. No lucas transmission Fix makes things worse.
2. Get your self a new transmission filter and gasket
3. Grab Gunk transmission medic 12oz
4. Grab 7 Liters of Valvoline ATF+4 transmission fluid (Made for chrysler transmissions)
5. Drop the trans pan and drain all the oil, clean pan and magnet
6. start truck for 5 seconds and the pump will pour out another 1 liter
7. re-install filter, gasket and pan, then add your Valvoline ATF+4
8. Add, the valvoline, transmission medic and make sure you have the right level of fluid

That solved my transmission problems, instantly it was shifting better, I no longer had to let off the gas to make it shift. Now if you have large pieces of metal on the magnet, and it's totally covered in filings, you might want to consider rebuilding the trans. My magnet had usual clutch.         

Anyhow good luck, let me know if it did the trick for you.
Justin