Article: Cleaning the Throttle Body

[timsrv]

Also, a previous post I made in this thread mistakenly cited Pat Benatar as the artist whose music messed this all up in the first place (I swear one of her songs is playing in another of Tim's videos). AD2101 regrets the error.

No, you were right......it was Pat Benatar. I had recorded two of those but originally uploaded the other one because it was better (not so jerky). Since they pulled that one I just replaced it with the other (both were recorded in May of 2011). Took a while to find as I had to scan through a bunch of SD cards from 3 different cameras. Tim

[boogieman]

i could have sworn it was steve miller..

[PNW vanwagon]

thanks again to tim who took the time / effort to dig out and re-post his excellent instructional video!

[armorrell]

Here's whats listed for TPS units on Rock Auto. Anyone have any preferences??

[SoORYotas]

The Beck-Arnley and then follow the instructions from Tim about how to use the volt meter on the resistance setting to fine tune.

[syn]

Is there a way to replace the tps without taking the throttle body out?

[Flecker]

Anything is possible, but in this case it's far easier to remove it.

Theres a couple of short phillips screws holding the tps on the throttle body, and are a REAL pain to get to without removal. And the adjustment is far easier with it off.

I suppose it can be done though, try not to drop the screws.

[AD2101]

Is there a way to replace the tps without taking the throttle body out?

I was able to do this job with the throttle body still "semi-attached" to the van (i.e. still connected to the hoses but removed from the intake manifold). You're only able to get this done if you completely remove the "hood" as it'll give you the access necessary to get the job done. I was able to get the new TPS on, mostly adust it with the standard test leads on my multimeter, and get it all back together. Adjusting it with the standard test leads was the sketchiest part, and I think that's why I'm still getting a code 11 on my '86.


Since I did all that and I'm still getting a TPS-related engine code, maybe you're better off removing the throttle body completely and doing this job by the book. However, I'm stubborn and bought a pair of alligator leads instead and I'm going to remove the hood again and redo this job sometime this winter. This time I'm confident I can adjust the TPS without removing the throttle body from the van in any way.

TL;DR

Yes, but only if you're willing to completely remove the hood, and possibly still have to semi-remove the throttle body in order to get the old TPS off.

[syn]

Now I gotta figure out how to take the "hood" off

[llamavan]

THIS LIBRARY ARTICLE contains that information!

Gwen

[syn]

Welp even with the hood off this is impossible...I guess I should just order a gasket and then take the throttle body off. Also is there a tutorial on getting rid of all the unnecessary vacuum lines and canisters? I don't need to pass emmissons for this van where I live.

[MyToy]

OH crap, I thought you may have found a short cut for me. Looks mine will have to come off if adjustment is necessary.

Nice try SNY

MT

[syn]

Also I missed the "semi-attached" part of the post before :/

[Flecker]

You are gonna just have to take it off I think... really not a biggy. AND, you can hose the thing down with some intake cleaner, clean all those vac line pesky passages that may be gummed up.

Also it's ten times easier to adjust the tps with it out of the engine compartment.

[MyToy]

Doing my throttle body and the seals for the butterfly shaft look real bad, one cracked.
Anyone know their part number or anywhere to get them?

MT

[timsrv]

Doing my throttle body and the seals for the butterfly shaft look real bad, one cracked.
Anyone know their part number or anywhere to get them?

MT

We touched on that subject posts #6 & 7 this thread. You can find high pressure seals for Mitsubishi and other unlisted "multiple fitments" on the web. It's possible those may fit???

I think you might have a better chance with taking the seals from THIS KIT. It's for a 22RE, but at least it's for Toyota. It's also regular seals (not high pressure).

Regarding the type seals you choose, even if the high pressure seals fit, the std ones would be preferred unless you're running forced induction. High pressure seals would likely put more pressure on the shaft causing it and the seals to wear faster.

If you try either of these, please let us know if they fit. Tim

[MyToy]

OK, let's give this a go. I ordered it. Will let everyone know what happens.

[MyToy]

Heads up Tim:

The Seal kit came in and it was not really for our throttle body. The gasket and the idle screw were wrong but the seals were OK.
So not a total loss.

Another issue with fuel damper but will hit that in the other thread.

MT

[timsrv]

Heads up Tim:

The Seal kit came in and it was not really for our throttle body. The gasket and the idle screw were wrong but the seals were OK.
So not a total loss.

Another issue with fuel damper but will hit that in the other thread.

MT

I never expected the other parts to fit, but I thought there was a chance the seals would work. The seals are the only thing you needed.........right?

[MyToy]

Correct-O

All is good.