06 Tundra 4.7 RPM/Rev issue [FIXED]

I've noted this issue after getting the water pump replaced, Everything is normal as I start the truck and drive it, the issue pops up after I stop and place it into park, the engine revs in an odd way with a different sound and the same with any gear after that, also does it in 4WD. It sounds closer to a turbine rather than the low rumbling. If I leave it for 30 mins to an hour, it'll start up as normal and sound normal again. It seems effected by distance, because if I do under a mile, place it into park, and then back into drive doesn't seem to cause the issue. Its shifting normally for both, and overdrive doesn't seem to change anything either. It slightly affects the power I'm getting, it's hard to notice the difference. I took it to a shop after trying to investigate it myself and they could not reproduce the issue and said it was probably just how the engine sounds since it's a new vehicle to me.

Timing belt was changed at 140k miles, currently at 180k, engine oil was changed 2 weeks ago along with transmission fluid, it was happening prior to the fluid changes.

https://www.youtube.com/shorts/NUwEIKM7OY4
https://www.youtube.com/shorts/oCNDLhCGVe0
https://www.youtube.com/shorts/vlce0lmm1rY

 

Look into cleaning your throttle body and mass air flow sensor.
Then disconnect the battery

 

On it, I'll have that done in a couple of hours and check back, thank you!

 

Watch some videos online on how to clean the throttle body. There is also some good post about it on here so you don’t do any damage

 

Does it happen with the A/C on or off or both?

We’re having an unusually hot summer, and I’ve used my A/C almost 4-5 days a week here lately. I haven’t had to do that any other year of owning my truck yet, going back almost 5-6 years now. I’m
Noticing now, the fan is going absolute apeshit when it’s in the 90s and I’m taking off at a stop light. I also noticed the A/C quality is at about 75% while idling at a light on hot asphalt versus what I get at 2,000+ RPM on the interstate.

 

Both, it is unusually hot, but it happens at night in a smooth 70 degree weather.

 

Cleaned both the sensor and the throttle body, the TB was DIRTY, like caked in grime, took about an hour to finally get it clean. Drove it around and did a bunch of testing. Tentatively it seems to be fixed! Thank you guys so much!

 

Curious, are you running an oiled filter or hot-air intake (like what K&N supplies)? Or just a standard OEM paper filter in the OEM air box?

 

OEM air box with OEM filter, I did just swap out the filter after I cleaned everything and put in a STP "Premium" filter in it.

 

Glad that worked out and the truck is running good again.