The WHAT-IS-THIS-PART and WHAT'S-THE-PART-NUMBER Thread for US Toyota Vans 1984-1989

Is this what you are talking about? I have no clue either.

Wow! Nobody knows what this is? Could it be only in California TV's? I think that is where mine originated.

Starting to collect any additional parts before I change out the engine and have spares are the same time.

Thank all of you.

MT

where does the rubber pipe go to? it looks like an adjustable valve or diaphragm.

It looks similar to the picture posted, but mine has a spring on the shaft and is aligned horizontally.

I can't seem to upload a picture on the forum so I've made a link: https://drive.google.com/file/d/1C5A...w?usp=drivesdk

Hope this works. Thanks for looking into this all, very curious now.

I do have a California model I believe. See the emission notes near engine opening. 86 LE cargo 2wd

Could not find it (yet) in my FSM for '87 but a few searches shows this as "Diaphragm, Sub-Assby. Cooler, Idle Up w/cooler, w/PS & cooler p/n 8860628010. Hopefully that is the number. Got my first cup of coffee done looking for that. I will go look at my vans after it stops raining as I have 4Y, 4YEC models.

Attachment 6553

The moral of the story is you shouldn't adjust things just because they are there.
I don't mean that in a mean way.
I think its just human nature as it is a fairly common affliction.

Many things have adjustable components, but its more about dialling things in at the factory, once set, they should require no further attention.

The problem is you don't know what issues you may have created by altering it or if its impacting your other issues, in any way.
Hopefully you can find the info on how to properly adjust it.

Hey BestyBrown:

I found a thread here:
http://www.toyotavantech.com/forum/s...hlight=idle+up

It is thread #10 where Tim identifies this part and explains what it does.

At least that is what my take is.

Check it out.

MT

Saw a youtube video of a guy with a toyota truck playing with his... RPM's of the "idle-up" vary as you turn the plastic knob... pretty sure counter-clockwise to increase idle speed.

A/C idle up valve.

It's the same on EVERY Toyota I have ever worked on. It is used to compensate for the load when the A/C kicks on and corrects the idle to the proper rpm.

If you are going to adjust it:

Start engine, note rpm.

Turn A/C on, note rpm and adjust as required to match engine idle rpm.

/procedure. :)>:

Attachment 6835
New 1987 Toyota Van owner. Smog Check repair shop says this part (valve) has a fume leak and is stuck open. It's on top or by the fuel tank. He took a picture of it and says he can't find the part to replace. Does anyone recognize this? Excited for the good times to come!

Thanks!

After doing some research I'm now wondering if it is the fuel level
sending unit.

Where did he say fumes are leaking from, and to where? For example, from the fuel tank to atmosphere, or from the tank to canister? Something about what the tech said doesn't make sense for a 30 year old vehicle. These don't have complicated EVAP systems like new cars.

Quote:

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Originally Posted by VanCo

Where did he say fumes are leaking from, and to where? For example, from the fuel tank to atmosphere, or from the tank to canister? Something about what the tech said doesn't make sense for a 30 year old vehicle. These don't have complicated EVAP systems like new cars.

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I'm guessing it was fuel tank to the atmosphere. He called it a fuel tank evap valve and said it was at the top of the fuel tank. Sounds like the mechanic might not have known what he was talking about. He said fume leak was definitely from this part he photographed.

This is the extent of the EVAP system:

Attachment 6836

There is a vent on the tank (looks like the picture you posted), it goes into a check valve then the charcoal canister, then the throttle body. There is no EVAP valve. If the vent is leaking, it may be a hose issue, or an issue with it sealing to the tank. That is not a "replaceable" part. Meaning, it doesn't/can't go bad.

When they check the EVAP line they pressurize the fuel tank with the line at the charcoal canister clamped. If the pressure drops there is a leak. If he detected a leak on the top of the tank specifically, you will need to drop the tank and reseal the vent, and replace the rubber vent hose.

Hi All,

I am looking for a replacement part for the hook that mounts beneath driver's side seatbelt to hold that seat up when accessing my engine. I have no idea what the part is called, and thought to ask you all here.

I have been a member for a while and thank you all for threads that have been very helpful on the road. I have been traveling the country full time for three years, and the Toyota support has been great.

A few months in the New Mexico desert heat has been brutal on the interior plastic parts of my van. Thanks for any advice.

:silvervan:

Quote:

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Originally Posted by LDV

Hi All,

I am looking for a replacement part for the hook that mounts beneath driver's side seatbelt to hold that seat up when accessing my engine. I have no idea what the part is called, and thought to ask you all here.

I have been a member for a while and thank you all for threads that have been very helpful on the road. I have been traveling the country full time for three years, and the Toyota support has been great.

A few months in the New Mexico desert heat has been brutal on the interior plastic parts of my van. Thanks for any advice.

:silvervan:

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Here is the part number and name part might be discontinued but check. It costs like 20 bucks I recall

58936-28010-03 Band,Engine hole service cover

Forget about the OEM plastic strap. They are hard to find and break easily.
You can make your own for $10 or less:

http://www.toyotavantech.com/forum/s...ng-some-parts!

Hi all!

while i was changing the engine oil yesterday on my 1988 4wd (atm tranny), i realised that the upper throttle cable was broken... i did not noticed any issues with that, but if this cable exist, it have his utility.....

What is the purpose of this cable? Where can i find it on the handbook? Is it easy to replace that cable?

Thank you!

Only 6 remaining at Rock auto

https://www.rockauto.com/?mfr=PIONEER&partnum=CA1990

was unable to find that cable somewhere else