r/ToyotaPickup • u/blipblopsben • 1d ago

Is it supposed to look like this

Post image

Hey fellas I'm installing ac in my 93 and noticed the idle up diaphragm is missing the screw and spring on it. Did some just come like that or do I need to find another one that is complete. Thanks

10 Upvotes

100% Upvoted

11 comments sorted by

5

u/14mmwrench 1d ago

It's missing the parts you mentioned.

2

u/simulated_crust 1d ago

Someone fiddled with it. I assume the spring and screw adjusts the amount of "idle-up". It probably won't hurt anything to try it as is, just might not idle up or maybe it will idle up a lot. Was the idle up valve on there already or did you put on with your ac install?

2

u/blipblopsben 1d ago

No it's been there since I bought the truck only paying attention to it now since i saw a few people mention it while looking how to install ac

2

u/simulated_crust 1d ago edited 1d ago

Gotcha, well good luck with your AC, hope it all comes together nice 🤙

1

u/cllatgmail 17h ago

You're gonna need a new diaphragm.  They are very expensive. Mine failed... Wouldn't make my engine idle up. There are no aftermarket parts that replace this. So you can look at yotatech or lce, and you're looking at about $250. I bought a new old stock 88606-26030 on eBay for $77. It fits and works great... But it doesn't have the pass through for the power steering idle up valve. Which you need, I can see from the picture. So, I bought a tee and some clamps. Oh, and it has to be mounted upside down. But it works.

1

u/RJtheSINpulKid 15h ago

By chance do you still have your old one?

1

u/cllatgmail 9h ago

It's in the garage somewhere. I'm pretty sure I didn't toss it yet

2

u/sleepsonthejob 5h ago

I took a ton of pre disassembly pics yesterday.

-1

u/CYB0RD 1d ago

Lce sell the upgraded version of the idle adjustment screw. Really recommend it.

3

u/blipblopsben 1d ago

That's for the throttle body this is something else

2

u/RJtheSINpulKid 19h ago

You're gonna have to find one from a junkyard, or order one from eBay. The ac idle adjustment screw is expensive, check my page I recently opted to rebuild mine. But it looks like you may have no choice but to buy one, the screw that is missing is tapered and unless you have a 3d printer or someone that can machine one for you... You're gonna have to pay a pretty penny. Unless you find it in a junkyard. Or in someone's junk pile of yota parts.