JJ'89

Help a 75 yr senior get his pickup ride back on the road...my '89 2wd 5 speed has sprung a leak. The water pump, radiator and radiator hoses are less than year old, the rest of it I don't know.
I hope that someone has made a list of diagrams, and part numbers to ease my job. I think I remember a post on this forum some time back that has this info, but I didn't find it. I did get some real useful photos, and a few diagrams, from a search, the toyota parts books diagrams I believe.

I bought a harbor freight pressure tester. Any tips on how to use that besides fill it up, pressure it up, and look for the geyser. Thanks

Paul22RE

There are nine coolant hoses total, best way to replace a few of them is through passenger wheel well with oil filter access plate off.

Here are the part numbers I used:

Gates: 18222, 18223, 28474, 18789, 21171, 21398
Continental: 61422
Dayco: 87687
OEM: 16261-35030

There is also an o-ring on a bypass pipe that attaches to the intake from below, OEM part# 96711-24017

Yours should be the same if an '89 has the IACV attached to the throttle body.

JJ'89

Thank you very much Paul. Perhaps you posted this information before and I had seen it. I found the Gates and Dayco applications data online, so I can see images of the various part numbers that you have provided. Very helpful.

When I opened up the hood, and took a look around, I found the leak immediately. It is the pipe-to-engine (water pump). Leaking past the pipe end clamp. The hose was so old and hard, that I had to shave it down at the pipe end to release the grip in order to get it off. It looks like the hose was not positioned correctly, like cocked a little bit when it was installed long ago. I can see a bit of debris on the hose at the "weak" point.

This engine had been "using" coolant" for a long time, which I couldn't figure out why. I would fill the radiator and reservoir and a week later the reservoir would be empty, and the level would be down in the radiator. I replaced the water pump with an Aisin, and the radiator with a Spectra, and the top and bottom hoses with Toyota. After that, I could drive it hard and park it, and next day not a drop on the driveway. No visible leak with the engine running. I even drove it on several 900 miles in one shot trips, and the reservoir held steady. Really bugged me. Best I can figure is that it leaked invisibly when cold with pressure, and when static after a couple of days sitting still.

Anyway, thanks again the info you provided.

p.s. Oil filter access in the wheel well? I didn't know about that! I've been on my back underneath to replace the oil filter...the hard way

2ToyGuy

Yes. Look in the passenger wheel well, up about the top center there's a small plate bolted in with 4 or 5 bolts. Take it off, and LO! You not only have easy access to the oil filter, but the knock sensor, the oil pressure sensor/sender (whichever you might have, oil pressure gauge or idiot light), the starter wiring connections, the wiring harness going down to the transmission and beyond, etc, etc. Really handy little plate they put in there.

If you're not careful, you can learn something new every day
Pat☺

JJ'89

Well, that's for sure. When I replaced the radiator, I discovered that the shroud is two pieces. Unclip the lower section and remove. Unscrew the upper section and remove. No need to mess with the fan...

2ToyGuy

When I bought my 4Runner in 95, I think it was, the bottom piece to the shroud was missing. I cut a piece of sheet metal to fit, attached it with small sheet metal screws, and away we went. Only trouble it gives me is if I bend it during installation, it will hit the fan. I just reach down and bend it back into shape, good to go.
You would think, after all these years, that I would find a replacement, one that is actually designed to fit the shroud, but heck, I'm bth lazy, and very cheap...errr...frugal, yeah, frugal ​​​​​​

Good luck!
Pat☺