I'm with zman and would be looking at the TPS. Quick little rpm surge, not even long enough to gain any speed.

 

TCC locking/unlocking will get you right about 200RPM differences.

 

You could try replacing the TPS as suggested.

If that doesn't fix it, then you have eliminated a bad TPS as a possibility.

 

Ive heard of the TCC and i know its in the transmission but what exactly does it do? how do you replace it?

 

TCC = Torque Converter Clutch. There's lots of good information about it in the Factory Service Manual. Once you understand what it does and how it works, the trick is to figure out if the PCM is commanding it to switch states or if it's doing it on its own. Usually, the PCM is commanding it based upon erroneous feedback from the electronics inside the transmission, but there's no sense going with usually and probably when it's your wallet that gets emptied. Read up on it, and go from there.

 

TCC is within the the torque converter. Fluid pressure pushes the clutch discs together and allows you to gain speed quickly from a dead stop. The clutch locks at some speed, usually around 45-50 mph, when you apply the brakes it unlocks and while your stopped it is slipping, which allows you to sit at a stoplight with vehicle still in drive. Not a professional explanation by any means.Swapping the the tps would be a cheap easy thing to try, Depending on your skill level. Torque convertor problems and I am going to a transmission shop.

 

ohhh ok i know what that is.this whole time i thought tcc stood for a solenoid in the transmission. Well thanks guys now i know what to replace when/if i get the extra money.

 

Well yes, there is also a TCC solenoid assembly in the trans.

 

Great now it turned into a tcc discussion when its clearly all the symptoms of a a bad Throttle Position Sensor...there was a thread a week ago addressing this. I'm not trying to bust anyones ***** by being like this, but probability, symptoms & being the cheapest thing to fix first, all things point at the throttle position sensor as the issue to fix with about 99% confidence I can say this.

If you're on the highway and your torque converter lockup unlocks it will go higher than a measly 200rpm fluctuation because its trying to build torque rather than staying static at the 1 to 1 ratio with the transmission input, you'd be looking at least 500-600rpm difference if it were an actual tcc problem...whatever the difference is in the tach when you start out in first gear from idle to the truck moving, that's your unlock point reference baseline.

$35 TPS will cure it.

Example of a bad tps in this video...the guys description also said he fixed it by buying a new TPS.

 

Get a OE TPS. The 35.00 ones are a crapshoot.