2007 5.7 Lights on after fluid changes

Hi,

First of all, I would like to thank everyone for posting valuable information on here. My name is Oz, and I am new to Tundras.

I am going to post my problem right away and am looking for some input.

thanks all

 

Did you unplug anything?

 

Welcome from NY.

 

Welcome from OKC!
https://www.tundras.com/threads/my-wtf-last-24hrs-all-warnings-lights-flashing.102262/
see chart on post #10

 

Didn’t unplug anything at all. The description is in the post I just posted.

 

Welcome from LA (Lower Alabama)!

 

Anyway, here is my scenario.

Recently I bought a 2007 with 170,000 miles on it. I replaced a leaky high pressure PS line. I then did the oil, coolant, front and rear diffs, and transfer case.

I used Toyota super long life coolant and house brand synthetic 75w90 on both diffs and the T case. 2 days later the Engine light and traction control lights came on along with flashing VSC off and 4LO lights. This happened while I was driving. Could it be the fluid used for the diff?

Before the lights came on, the truck started shifting weird when picking up speed at around 45 MPH. I didn’t think too much of it then about 20 miles down the road the lights came on.

I was driving in some knee high brush and on a grid road at the time of the occurrence. So maybe I bumped something underneath? I checked and there is nothing obvious.

i pulled out my $30 scan tool and pulled the code P0976. I have searched for answers before making this post and found only similar posts with no luck to my case.

I tried disconnecting the battery for 15 minutes twice. As soon as I in leave the house the lights come on. It feels like the truck is starting off in second gear.

thanks all

 

T

Your code is for a transmission solenoid issue and will affect the shifting. Watch "Car Care Nut" channel on YT and learn how to drain and fill the tranny fluid with Toy WS fluid while the truck is cool. Don't forget to pin the cooler thermostat open during the process. Also open fill plug prior to drain plug to make certain you can fill it. A hose and a funnel from the engine bay or a large syringe will help you fill. A pump sprayer type tank also works.

If that don't help, you need to check the wire harness to the tranny for damages or loose connectors. Either way, your tranny is due for a drain and fill. Do not flush!

 

You didn’t accidentally drain your transmission pan instead of the engine oil pan when doing your oil change, did you?

 

leaving this here...https://www.tundras.com/threads/ultimate-tundra-wiring-diagrams-collection.81448/

 

Ok, I will try this first. Thanks for the suggestion. I appreciate it.

 

Hi, no. I made sure that I drained the right things. This wasn’t my first time servicing all of these things. I have done all before except the transmission on other vehicles. I may have overfilled the transfer case but I’m usually careful on these procedures. I will double check the level.

 

FYI. You’re not supposed to put 75w90 in the transfer case. Only the differentials. Only 75W goes in the transfer case.

 

I thought I read the older transfer cases were specd differently, no? Pretty sure OP is correct.

 

Who has a 2007 manual?

 

That may be possible.

 

There is really nothing that you have done that would cause any issues. You mentioned that you just purchased it, did the previous owner mention any known issues?

 

$39 75w 90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w 90 in that year transfer case. Thru 2012..

 

He didn’t mention anything about the power train at all.