Throttle body and intake cleaning (1 Viewer)
- Thread starter bburton
- Start date
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Look for a foaming de-carbon product. Often used to clean carbon off of valves, head, and pistons when doing a head gasket.
For the upper intake, just soak it in Simple Green and hot water for a few hours and scrub the passages with a bottle brush. Use guitar string to clear out the small vacuum passages that go through the intake.
For the upper intake, just soak it in Simple Green and hot water for a few hours and scrub the passages with a bottle brush. Use guitar string to clear out the small vacuum passages that go through the intake.
Pull the upper intake if you are going to do it, if you are doing that I’d pull the lower as well. Replace the gaskets, you will need lower intake gasket to the engine and lower to upper intake gasket . Good time to do fuel filter and all the vacuum lines as well, do the vsv s on the vacuum line section too
- Thread starter
- #7
Thanks!geez, thats the dirtiest TB ive ever seen
once clean it will drive like a new car
- Thread starter
- #8
Any chance anyone has replaced all vacuum lines, upper and lower intakes etc like I would like to do and has a comprehensive parts list from when you did the same?
Vacuum line 90999-92003 you’ll need prob 4 of these
Fuel filter 23300-69045
Intake gaskets I bought the head kit which includes these so don’t have the separate numbers
Vsv for the egr 136200-0230
If you can’t find the others let me know I’ll look them up, but any dealer should be able to tell you.
One other thought would be to do coolant bypass hoses 1,2, 3 these are the lines going to throttle body
Fuel filter 23300-69045
Intake gaskets I bought the head kit which includes these so don’t have the separate numbers
Vsv for the egr 136200-0230
If you can’t find the others let me know I’ll look them up, but any dealer should be able to tell you.
One other thought would be to do coolant bypass hoses 1,2, 3 these are the lines going to throttle body
For the vacuum line, I bought bulk vacuum hose from Carquest and ended up liking it more than the genuine Toyota stuff.
There's a Dorman VSV that works, but you have to shave down an indexing protrusion to make it fit. I used one several years ago intending for it to be temporary but I've had zero problems with it.
There's a Dorman VSV that works, but you have to shave down an indexing protrusion to make it fit. I used one several years ago intending for it to be temporary but I've had zero problems with it.
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If you are pulling lower your also pulling the fuel injectors.
Add to the list o-rings and seats for injectors
Crush gaskets for the fuel line feeding fuel injector rail. Same ones for the fuel filter also.
6 new connector housings for the injectors as they probably break apart when you remove them.
Might as well do the pesky heater hose. And there are a few small coolant hoses going to manifold/ TB.
Once you go in……you go in deep
Add to the list o-rings and seats for injectors
Crush gaskets for the fuel line feeding fuel injector rail. Same ones for the fuel filter also.
6 new connector housings for the injectors as they probably break apart when you remove them.
Might as well do the pesky heater hose. And there are a few small coolant hoses going to manifold/ TB.
Once you go in……you go in deep
- Thread starter
- #12
Man - this all started with a small oil leak on the valve cover and distributor and now it’s gone full tilt. Yes, I keep eyeballing the PHH now that it’s more visible and I’ll finally attack that with parts that I already have that I’ve been avoiding - breeze constant tension with silicone hose.
I'm about to do this same job and have acquired almost all the parts mentioned. I agree, if taking the throttle body and valve cover off you're just about there to the manifolds and fuel injectors. I'll be cleaning and resealing all of that. The only thing I don't have is the crush gaskets for the fuel filter and fuel rail. Assuming 3 are needed? Does anyone have the part #s for those?
They come with the fuel filter
9043012026
You need 6, they didn’t come with my filter.
4 for filter and 2 for line feeding rail
Awesome, thank you!
Malleus
Far west of Siegen
Ooooh, I’ll see if mine came with them.
Just confirmed, my fuel filter did come with the 4 crush washers, so I only need the two for the fuel rail line.
Don't do the silicone hose on the PHH.
Many examples of failure.
Get a piece of Toyota hose or the Gates Green Stripe.
