How to remove coolant flow to the throttle body?
Remove the coolant hose attached to the firewall side of the throttle body (TB). 2. Remove the coolant hose which connects the bottom TB coolant outlet to the coolant hard-pipe between the oil filter and the oil filler spout. 3.
Where does the coolant flow from the IAC to TB?
There is a great picture here which shows exactly how the coolant flows through the IAC to the TB. More than likely it’s not flowing through the IAC, but rather around the throttle body. In most cases this is done to keep the throttle plates from freezing when it’s cold outside.
Where is the coolant outlet on a TB?
Remove the coolant hose which connects the bottom TB coolant outlet to the coolant hard-pipe between the oil filter and the oil filler spout. 3. The hose which was attached to the top firewall coolant inlet on the TB should now be reattached at the hard-pipe, completing the rerouting.
Is there any coolant in the engine body?
No coolant in the oil is present, and it holds temperature with no issues. I have the upper intake off, so replacing the EGR gasket or even the lower intake gasket at this point is not too big of a deal. Thanks!
Remove the coolant hose attached to the firewall side of the throttle body (TB). 2. Remove the coolant hose which connects the bottom TB coolant outlet to the coolant hard-pipe between the oil filter and the oil filler spout. 3.
Where is the coolant bypass hose on a Toyota?
After a bit of research I found it. It’s located under the intake manifold. You can’t see it no matter how hard you try. And I know for a fact that it’s the original one, since I’ve never changed it. To get to it, I’d have to remove the Throttle Body, the EGR stuff, the Plenum, the injector rack, the intake manifold just to get to a $10.00 hose.
Remove the coolant hose which connects the bottom TB coolant outlet to the coolant hard-pipe between the oil filter and the oil filler spout. 3. The hose which was attached to the top firewall coolant inlet on the TB should now be reattached at the hard-pipe, completing the rerouting.
How does the coolant bypass hose control timing?
If you unbolt it unevenly, you risk warping the manifold and will have to surface the manifold. (Its aluminum so it warps easily). The knock sensors are very expensive Their job is to detect engine knock and sends a voltage signal to the ecm.. the ecm uses that signal to control the timing.