09 Toyota tacoma automatic trans. - 2009 Toyota Tacoma

assume it is an automatic

speed sensor
solenoids
low oil
needs a service
TPS
transmission computer fault

How would the transmission be low on fluid ?

It's up to you to check for leaks & the fluid level

If you think it is slipping, you may as well
pull the trans & have it rebuilt

Don't change the fluid every 2 or 3 years, you
have a failed trans

All vehicle fluids break down & very few people
change them

You are using the "shotgun" method of diagnosis-shooting parts at it until it's fixed.I refused to do this as a dealer tech,which is why I don't fix cars for a living any more.(In the auto dealer warranty repair world,you are paid for replacing parts,not for diagnosis time.) However,since you have replaced the most expensive pieces already,why not round it up with a neutral safety switch(or clutch pedal switch-you didn't specify an auto or manual trans)? I had many automatic trans vehicles that would not start in park,but would in neutral.Some "PRNDL" switches are adjustable,not sure about yours.If you do have an auto trans,try cranking the starter while pushing/pulling the shifter.If this makes the trouble come and go,you are probably on the right track.

A replacement unit from Toyota goes for something like $200 (maybe more). This is a very common problem with the 05-09 Tacoma. The console is very prone to internal failure. I offer a reasonable repair service with a lifetime guarantee, check it out: www.autoclockrepair.com
There is a bunch of useful info there. Drop me an email if you have questions, thanks!

A dim or dead display is a very common problem with the 05-09 Tacoma. The console is very prone to internal failure. I offer a reasonable repair service with a lifetime guarantee, check it out: www.autoclockrepair.com
There is a bunch of useful info there. Drop me an email if you have questions, thanks!

http://www.tacomaterritory.com/forum/

the trans should be serviced if it is an automatic (fluid and filter), the fuel filter should be changed ( a restricted filter can ruin the fuel pump in the tank), the air filter should be changed, make sure the chassis lubed if it has lube zerks. Clean or replace the PCV valve.

You have some serious issues there and need a tranny expert's help.

Either the starter has failed or you have a bad ground. I would say starter.

0 deg 09' +/- 12' (0.15 +/- 0.2 deg, 1.6 +/- 2 mm, 0.06 +/- 0.08 in.)