Auto Transmission Problem ~ 2000 Toyota Tundra

[Bilgra]

Hi all I have a 2000 Tundra with 138 k mi. I was driving and suddenly the truck started losing speed but the engine rpm same or higher. I stopped and restarted and the truck started off fine then lost speed. Now the only way I can make it move is to turn it off, then on again and it will go a short distance and will just roll to a stop. I’m thinking I have a bad selenoid but don’t know which one to replace.
Is there an OBD test and code for individual selenoid. I can just see a 700 code now. Is there one selenoid that fits the behavior described?
Any info that will lead to a fix, is greatly appreciated. Billgra

 

[toyotafan]

You've got one of the first generation trucks and only 138,000 miles on it?

What engine & transmission combo do you have in your truck? Also, 2WD or 4WD? Here are the options:

Body style
2-door Regular cab
4-door Access cab
4-door Double cab

Engine
3.4 L 5VZ-FE V6
190 horsepower (2000-2004)

4.0 L 1GR-FE V6
236 horsepower (2005-2006)

4.7 L 2UZ-FE V8
245 horsepower (2000-2004)

Transmission
5-speed manual (2000-2004)
4-speed A340 automatic (2000-2004)

 

[toyotafan]

Does it downshift, can you tell what gear it's in and which gear does it get to? What speed do you get to before you start losing speed?

 

[gene]

Hi all I have a 2000 Tundra with 138 k mi. I was driving and suddenly the truck started losing speed but the engine rpm same or higher. I stopped and restarted and the truck started off fine then lost speed. Now the only way I can make it move is to turn it off, then on again and it will go a short distance and will just roll to a stop. I’m thinking I have a bad selenoid but don’t know which one to replace.
Is there an OBD test and code for individual selenoid. I can just see a 700 code now. Is there one selenoid that fits the behavior described?
Any info that will lead to a fix, is greatly appreciated. Billgra

Did you check your ATF level?