Bajawfo

I need help locating a R-12 compressor (with manifold) for a 95 4Runner. Thanx guys !

millball

'95 4Runners came from the factory with R134 AC systems

Bajawfo

the sticker says its a R-134 system but my mechanic is saying its an R-12 and wants to charge me $550 for a new compressor. Hmmm. Any mechanix in Prescott, AZ area wanna help me out here ? This is over my head

millball

Find another mechanic

Robert m

iTrader: (2)

Very much this!

Bajawfo

I could be jumping the gun here. I wont know everything until tomorrow. The plate I installed on the compressor was bought from a 3rd party and could be for an R-12 system and is throwing my mechanic off. Seems like hes trying to keep cost down for me. Could also be the parts supplier . IDK Stay tuned.

Terrys87

iTrader: (1)

I am almost positive Toyota went from R12 in 91 or 92. I know they sell adapters that convert the compressors from R12 to R134. Maybe the sell adapters the other way as well. I would be looking for another mechanic.

millball

Mostly, 1993 model cars and trucks are the last built to use R12.

Somewhere on this forum, I remember a thread where someone stated that Toyota did'nt change production until the last legal minute, so there are some early production 1994 Toyotas built with R12 systems, while later production 1994 models use R134. Everything later is R134 of course.

wyoming9

iTrader: (1)

Is your compressor in need of being replaced .

Who knows at one time a older compressor may have been installed .

Other then the gauge connections and different refrigerant o rings etc . I have a few compressors swapped over to 134A

If you by mistake installed the threaded R-12 fittings and the Mechanic is going by those I could see where he thinks you have the older compressor .

Rushed for time I could see making that mistake myself.

millball

The AC service ports on 1995 3.0 4Runner systems are up near the passenger side firewall, under the giant rats nest of vacuum tubes that these trucks have there.

I know that I have seen a number of Toyotas that have the service ports at the compressor intake and discharge. '95 3.0 'Runner is not one of them.

Janos01

You can get a OE Denso A/C Compressor from RockAuto for $202 (Brand New). If you just need your system to be charged, I would find someone to charge it with R12 or as Terrys87 recommended, convert it to R134 might be cheaper. I have a 90 4runner and it is a R12 system, a bit pricey to charge, but that air is Cold.

Bajawfo

So ya I found out that the compressor I had bought from Ebay is an R-12. It dint mention that anywhere on the listing, just that it fits 95 4Runner. (Since I mounted in vehicle I'm sure I'll have to eat that now). Found used compressor with correct manifold online for 80 bones. Having mechanic install since I know what a pain it can be.
Thanx guys for your help
R-12 compressor for sale. Make offer !

wyoming9

iTrader: (1)

Why did you just not put the adapter fittings on the compressor you all ready had .

Since the system had to have a vacuum pulled and recharged .

How much do you want for the compressor you want to sell??

Bajawfo

I dont have any adapter fitting and every hose combination tried wouldn't work. Mechanic ordered every hose (High and Low) for every year 4Runner from 90-95. Nothing worked. I think $50 for the new compressor is fair. I'll be glad when this is over, It's friggin hot here !!

rustypigeon

That seems accurate. I have a '94 (actually built 10/93) that uses R12. It has never been serviced and still blows freezing cold air.

Bajawfo

After 6 hours at the shop they got the new (correct) compressor in and 43 deg is blowing ! But now the compressor shut off, currently using a jumper wire. Can't find a fuse to a/c. WTF ? It was working fine then just turned off... Short, relay, fuse ? ARG !!! Help !?

wyoming9

iTrader: (1)

More then likely it is either a high or low pressure problem.

The Ac fuse is in behind the right kick panel at least on the 94 yours should be the same.

Lots of electrical problems it could be.

First you have to start with the pressure work from there.

When this was installed what else was done??

Bajawfo

Yup it was the fuse behind right kick panel. Nice and normal 4Runner now ! Thanx all ! New (mounted but never hooked up) R-12 a/c compressor $50



So now lets take care of that leaky power steering pump....

scope103

I'm probably much too late to help (though millball did refer to my thread https://www.yotatech.com/forums/f116...-r134a-284801/) .

Toyota trucks went out as R134a if they were BUILT after 1/1/94. So RustyPigeon's '94 (built in '93) has R12.

So far as I know, there is "no such thing" as an R12 compressor. They're the same. (I believe Toyota uses the Denso 10PA15C -- at least that's what I used.) What's different is the manifold (the plate on top with the ports), and even that doesn't matter. If you're replacing the compressor, the new compressor doesn't come with the manifold, and you re-use the old one. The R12 ports shown in Bajawfo's picture don't matter; you can either put on conversion fittings, or just leave them alone. You'll be doing your R134a charging through the (converted) ports under the hood up near the evaporator.

What might have happened to Bajawfo is that the "new" manifold didn't have the HOSE fittings for his vehicle (which is why you use the old manifold when replacing the compressor).

Last, since it looks like Bajawfo's compressor was used in an R12 system, it's probably filled with mineral oil instead of PAG 45. But according to Toyota, you don't care. Dump out as much as you can, and fill with the specified amount of PAG 45. The old mineral oil will show up as "bubbles" in the new PAG 45 so you can't use the sight glass anymore, but you don't care (because you're using gauges, not some iffy sight glass).

ahmad1

I have charged R-134a in R12 system with no problem at all. It works fine.