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

Thank you Gwen!

Working on my vacuum system, which was butchered by previous owners. Based on this diagram, I've got everything back where it belongs. One question mark though -- where would the hose (highlighted in magenta) from the t-union in this diagram go? I believe I have one choice, as there is a metal tube near the firewall that needs a hose from somewhere. Could someone verify this for me? I haven't had any luck tracking down the FIG 36-16 referenced in this image.

It's late and I didn't check where that metal vacuum line goes... called it a night, hope to work on it tomorrow. Any help would be appreciated.

Attachment 4616

maybe the metal pipe leads to the vacuum brake booster

When I got back in the shop and traced it, the metal line went down and over the transmission to the charcoal canister. I went ahead and connected that to the t-union I was referring to in the diagram. Hope that is correct.

I just changed out the engine in my van and that vacuum line was/is attached to the metal line you refer to. I think you have the correct connection.

Attachment 4694 the best I can figure out is some electrical plug for the radiator Outlet but I've been driving for a long time I think with a broken and I'm wondering what it does or what damage have done

Looks like a temperature sensor.

The green wire used to be attached to the temperature sender.
Shouldn't be difficult to fix so you know how cool your running.

That's your "Pressure-up" temperature switch. Pretty worthless really. If you live in a warm climate I'd take the wire and attach it to ground. If you live where it's cold, just leave it be. For more information on what it does, read these threads:

http://www.toyotavantech.com/forum/s...tached-diagram

http://www.toyotavantech.com/forum/s...amous-hot-soak

Awesome thanks so much y'all!

just successfully diagnosed first problem with new van using the info found on this site. thank you > and will be replacing a bad Temperature Sending Unit. the dash temp gauge works it's just the Unit is bad.

i noticed while i was checking the gauge by grounding the connecting wire: the Unit below the Temp Sending Unit was unplugged? i re-connected it. even though i bought the official Repair Manual for my 1989 Van i couldn't figure out what that unit was and what purpose it serves?

here's a photo - anybody know what this is:

[ATTACH]4764[/ATTACH

*also just asking: i need to drain the coolant from the engine AND radiator before replacing the Temp Send Unit?*

Quote:

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Originally Posted by PNW vanwagon

just successfully diagnosed first problem with new van using the info found on this site. thank you > and will be replacing a bad Temperature Sending Unit. the dash temp gauge works it's just the Unit is bad.

i noticed while i was checking the gauge by grounding the connecting wire: the Unit below the Temp Sending Unit was unplugged? i re-connected it. even though i bought the official Repair Manual for my 1989 Van i couldn't figure out what that unit was and what purpose it serves?

here's a photo - anybody know what this is:

[ATTACH]4764[/ATTACH

*also just asking: i need to drain the coolant from the engine AND radiator before replacing the Temp Send Unit?*

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That is the temperature sensor for the auto transmission that allows the trans to shift into overdrive once coolant temp hits 120 degrees

thank you JPERL. wonder why those two cables were disconnected? first week of owning this van - doesn't seem like they could work themselves off on their own

Quote:

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Originally Posted by JPERL

That is the temperature sensor for the auto transmission that allows the trans to shift into overdrive once coolant temp hits 120 degrees

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I never bothered to reconnect mine since I live in a climate that rarely falls below 60 degrees and on average is in the 80-90 degree range. if the connector is disconnected it still shifts into overdrive it just shifts regardless of temperature, which in my case after 5 min of driving the engine is at normal operating temp

I just bought this van its an 86 LE. and im starting to check it out and notice things that seem odd. can anyone tell me what this is all about, seems like it should be connected to something, and again, no obvious place to connect. unless its supposed to be that way? doesnt seem likely. Attachment 4808

It IS supposed to be that way. In the event that coolant needs to overflow (whether due to overfilling or other problems), the excess coolant drains out that li'l hose to nowhere.

Gwen

Quote:

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Originally Posted by llamavan

It IS supposed to be that way. In the event that coolant needs to overflow (whether due to overfilling or other problems), the excess coolant drains out that li'l hose to nowhere.

Gwen

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thank you! i appriciate the response i thought it might be a stupid question but figured id ask, seemed odd. im still learning how everything works!

If it starts leaking, check your rubber seal on your radiator cap first for cracks or deformations. A lot of people jump to the worst case senario and think they have major issues. Mine was leaking and I found the rubber seal compermised on the cap. Less than 10.00 at the parts store and I have a watertight system for thousands of miles so far.

Best regards,

Blake

howdy,
I'm a newbie here (and know very little about vehicles!), I have an '87 4wd project van. I'm currently having my local shop revive the engine, they sent it out for a rebuild and in the meantime I'm having them order whatever they feel should be replaced. I was in there today and got the list of parts they want to replace and they're having a hard time tracking down (or even identifying) this part that sits behind the fan on the motor. Looks like it has coolant and water flowing through it, and it is pretty corroded. Any ideas? Are these available? Any help would be much appreciated.

thanks,
Derek


Attachment 4990Attachment 4989Attachment 4988http://www.toyotavantech.com/forum/i...dvXrQXHXc//9k=

That would be the filler neck, aka "OUTLET, WATER Toyota P/N 16304-73010"

Unlikely to still be available (I don't know because I haven't tried). If that's the case, your best bet is the junkyard.

Gwen