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

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Originally Posted by originalkwyjibo

What color are the wires? The chassis side of the coolant float sensor should be yellow with a red stripe and white with a blue stripe. You mention a coolant sensor code and damaged wires. I assume you are referring to code 22 for the coolant temp sensor. These wires should be brown and green. There's also the oil level sensor on the side of the oil pan. Those wires would be white with a blue stripe and yellow.

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Yes it is code 21 then 22. I replaced the oxygen upstream o2 sensor and the coolant sensor is in process but ther seems to be a color variance on the cooling system wires. The reservoir wires are both solid yellow and connect to a solid red and a white with blue stripe. The cut wires that I can't figure out are solid brown and solid white. I took a video of a junk yard engine and it looks like it may be for an o2 sensor near the manifold but my van doesn't have that sensor and the manual doesn't show it either. I am wondering if maybe this wiring harness came off a different van. Just a guess though.

Anyone know what this blue box is behind the glove box and next to the cornering light relay switch??
I've taken apart a few Van dashes before but don't recall seeing this?? I was stressed for time today so I couldn't get as busy as I like to.

Check it out:thmbup:

Can you find a part number on it?

No I never got it out to see. :?:

Could it be a component of the cruise control system? I was thinking about doing a swap and the diagram showed a part in that area.

Nice man if you come up with the schematic for confirmation that would be great!!!

Its a OEM part for sure cause it's connected to bracket that doesn't look like an after market part.

Thank you

Awhile back, I found a schematic online that appeared to show two different systems for the cruise control components, one for the manual and another for the automatic van. I have a manual van with cruise control that I think has a cruise control part, like the one you describe. But I never the did the transfer because my receiving van is automatic. I looked for the parts schematic again but could only find one that does not show the two different systems. I can't confirm the identity of the part, sorry.

No problem thank you for the reply:thmbup:

hmmmm..... the only way to figure out this mysterious box is to go get it!!! :lol::lol::lol:

Hi there.

Found a broken plug on a temp sender on my filler neck today. There are 3 sensors screwed into this neck I can't find a parts diagram on-line anywhere. Here is the picture:

Attachment 4404

Its a 1988 automatic 2wd 4YEC engine.

Thanks!

Geoff

Coolant temperature sensor.
http://www.toyotavantech.com/forum/a...1&d=1430586393

That picture is super awesome and the person who added the tags did a super nice job. There are however some minor terminology errors (he's calling the part you need a switch, when in fact it is a sensor). There is a thermistor inside of it that talks to the ECU (very important to have a good one). I haven't checked his part numbers to verify, but I assume they are correct.

For that sensor, so far I've only used Napa part #TS5520 (around $15) and the OEM Toyota part #89422-12010 (around $80). In my experience, the Napa sensor has worked fine. I've been running the $15 Napa one on my 86 LE for the last 60k miles and that van runs sweet. Tim

http://i8.photobucket.com/albums/a23...tempsensor.jpg

Fantastic!

Napa On-line doesn't actually show that part. I had tried them before posting here. But I believe that. I have had a lot of trouble with this older vehicle simply not having all of its parts listed in on-line catalogs.

Glad it is the temp sensor that's broken. Those other 2 switches are about $150 a piece.

Thanks guys.

BTW, if you need it, a standard Bosch fuel injection connector works with this sensor. It's a common connector, can be found at pretty much any auto parts store, and is made by several manufacturers. That sensor is not polarity sensitive (doesn't matter what order the wires are in). Tim

I was replacing some hoses today when I accidentally bumped into a sensor near the radiator cap....causing the wire to snap off :pissed: I'm a relatively new van owner and was wondering if someone could help identify what exactly this sensor is for...and where I could potentially order a replacement. I have included a picture below...it it the black plastic one in the middle (with the broken green wire next to it) hope this helps!

If I understand correctly, it is a temperature switch that's job is to help prevent "hot soak" by inducing a temporary increase in fuel pressure at start-up when engine is hot. I believe it is Toyota part # 89428-20050. You can probably replace it for about $100, repair the wire, or live without it just fine.
p.s. I hope one of the hoses you're replacing is the kinked small hose to the coolant reservoir tank :wnk:

Van Allen,

Thank you for the info!! I tried to repair it myself but didn't have much luck...so I think a new part is in order! And I am replacing that hose along with the lower rad hose today :) good lookin' out though! I appreciate your reply.

PK

87, cargo 4wd van. In the middle of stripping out van. Anyone know what this is? Not sure if it was ballast(not likely), but looks factory and no mention of it in the shop manual -Thanks
Attachment 4603

Interesting, I've only seen those in the 1st gen cargo vans (which also have rear coil springs rather than leaf springs).

Ballast is as good a term as any; I forget the Toyota term. I removed mine.

Gwen

EDIT: Toyota calls it the Rear Floor Balancer.

My new cap didn't come with a gasket and I can't find one-although one Toyota dealer sells it with the cap. Anyone found one? I saw some guys on youtube use RTV to seal it but that'd be hard to get off when I replace the cap the next time.

Toyota part #s (identical for all years of US Vanwagons) per the EPC diagram:

PACKING, DUST PROOF
19127-63010 NO.1
19127-63020 NO.2

Gwen

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?*

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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