How to install A/C in a 1st Gen Pickup/4Runner (4 Viewers)

[pappy]

I am trying to find rhe vsv location. 86 runner. Is this something that came with the truck or do I need to purchase to be able to add ac. This write up doesn't really state. Thanks

Bottom of this picture.

 

[braddamarlon]

Bottom of this picture.

Thank you for the reply from my attached pic mine doesn't have that. The other idle up vsv. Where does that plug into and where do the vacuum lines run? I see one goes to the diaphragm what about the other? Also I can't seem to fins the diaphragm anywhere I found one for a yota van looks very similar.

Here is the link I wonder if it would work just the same. Thank you for any help

1986 Standard Motor Products AC586 Standard Motor Idle Air Control Valves | Summit Racing

Free Shipping - Standard Motor Idle Air Control Valves with qualifying orders of $109. Shop Idle Air Controls at Summit Racing.

www.summitracing.com

View attachment 3463539

 

[pappy]

On the 1986 trucks there are only two VSVs. One is for the AC, if you have it. The second is for the fuel pressure regulator, located at the back of the engine, mounted to the top of the rocker arm cover, behind the EGR modulator.

As far as where the AC VSV plugs in, the harness will support the VSV even if you don't have AC. It's probably tucked under the plenum. The original AC VSV would have a short pigtail, the harness would plug into that. With the VSV I have, a replacement, I had to make a short extension to reach the harness. That is what you drew in the red circle.

Part numbers:

88606-32010, Idle-Up Diaphragm, $42.15 list, ~$31.68 discount.
88690-22470, AC VSV, $30.57 list, ~$22.98 discount.

Something I should also mention. The Idle-Up Diaphragm is not just for the AC. It also works with the power steering. On the PS pump there is a pressure switch. Looking at the picture you shared I can't really tell what is going on. It looks like your PS switch is plumbed differently without the diaphragm.

 

[braddamarlon]

On the 1986 trucks there are only two VSVs. One is for the AC, if you have it. The second is for the fuel pressure regulator, located at the back of the engine, mounted to the top of the rocker arm cover, behind the EGR modulator.

As far as where the AC VSV plugs in, the harness will support the VSV even if you don't have AC. It's probably tucked under the plenum. The original AC VSV would have a short pigtail, the harness would plug into that. With the VSV I have, a replacement, I had to make a short extension to reach the harness. That is what you drew in the red circle.

Part numbers:

88606-32010, Idle-Up Diaphragm, $42.15 list, ~$31.68 discount.
88690-22470, AC VSV, $30.57 list, ~$22.98 discount.

Something I should also mention. The Idle-Up Diaphragm is not just for the AC. It also works with the power steering. On the PS pump there is a pressure switch. Looking at the picture you shared I can't really tell what is going on. It looks like your PS switch is plumbed differently without the diaphragm.

This is how my lines go from the power steering. To make the ac work I need to add the diaphragm and vsv correct?

 

[pappy]

To make the ac work I need to add the diaphragm and vsv correct?

Yes.

 

[braddamarlon]

Yes.

If you don't mine can I see how your hoses run on diaphragm to manifold . When you get a chance

 

[pappy]

If you don't mine can I see how your hoses run on diaphragm to manifold . When you get a chance

Edit with the hoses marked.

 

[liveoak]

Thank you for the reply from my attached pic mine doesn't have that. The other idle up vsv. Where does that plug into and where do the vacuum lines run? I see one goes to the diaphragm what about the other? Also I can't seem to fins the diaphragm anywhere I found one for a yota van looks very similar.

Here is the link I wonder if it would work just the same. Thank you for any help

1986 Standard Motor Products AC586 Standard Motor Idle Air Control Valves | Summit Racing

Free Shipping - Standard Motor Idle Air Control Valves with qualifying orders of $109. Shop Idle Air Controls at Summit Racing.

www.summitracing.com

That diaphragm looks a bit different, opposite connections and no power steer connector. could probably be customized to work though.

 

[yotadude520]

Thanks @pappy! Ken had left the VSV in place for an OBA system. Appreciate you filling the gaps on that!

 

[braddamarlon]

Edit with the hoses marked.

View attachment 3463826

Thank you for the help I should be able to get it done just need to get a few more parts. Do any of you guys notice a difference between the denso dual core condenser and the single core

 

[braddamarlon]

Sorry for all the questions over the weekend I was able to get 2 evaporator boxes. I took both actuators out the green one is off a 85 pickup and the other I'm not sure the year could be 85-86 but it was a pickup/camper. Is there a difference between the 2. Also pulled out both 4 pin harness that came off the evaporator box.

 

[liveoak]

Sorry for all the questions over the weekend I was able to get 2 evaporator boxes. I took both actuators out the green one is off a 85 pickup and the other I'm not sure the year could be 85-86 but it was a pickup/camper. Is there a difference between the 2. Also pulled out both 4 pin harness that came off the evaporator box.

Good question. There seems to be an extra pin (1) on the AC Amp with the white plug. I have the 85 green plug one as below.

 

[liveoak]

this thread could shed some light.

The A/C Amp Thread

This thread is all about FJ60/FJ62 A/C amplifiers. You know, that little black box that mounts on the evaporator case behind the glove box. There are plenty of other threads concerning A/C amps and I thought about adding to those, but in the end decided that the information here breaks enough...

forum.ih8mud.com

 

[braddamarlon]

this thread could shed some light.

The A/C Amp Thread

This thread is all about FJ60/FJ62 A/C amplifiers. You know, that little black box that mounts on the evaporator case behind the glove box. There are plenty of other threads concerning A/C amps and I thought about adding to those, but in the end decided that the information here breaks enough...

forum.ih8mud.com

Thank you. So I bought a reman denso compressor. It is filled with r12 oil but I want to convert to r134a. I've been doing some rea d research but don't have a definitive answer on how to get all the oil of the compressor. How would I go about converting. Also would it be better to use ester oil instead of pag?I will be using a new dryer, condenser, evaporator.

 

[pappy]

Thank you. So I bought a reman denso compressor. It is filled with r12 oil but I want to convert to r134a. I've been doing some rea d research but don't have a definitive answer on how to get all the oil of the compressor. How would I go about converting. Also would it be better to use ester oil instead of pag?I will be using a new dryer, condenser, evaporator.

Take the top off of the compressor. Tip it over and let all the oil drain out. Refill with PAG using the amounts in the FSM.

 

[braddamarlon]

So I am at a standstill with this ac project I've done most the work only to find out that my ac manifold is facing the wrong way. This manifold came off a 87 the red side is correct but the blue I won't be able to get the hose on. Is there a different type of rubber hose or does anyone have the other manifold.?

 

[yotadude520]

So I am at a standstill with this ac project I've done most the work only to find out that my ac manifold is facing the wrong way. This manifold came off a 87 the red side is correct but the blue I won't be able to get the hose on. Is there a different type of rubber hose or does anyone have the other manifold.?

View attachment 3533914

Looks like you've got the wrong manifolds as they are supposed to be at a 90 degree angle. Yours look like they go straight out.

 

[braddamarlon]

Looks like you've got the wrong manifolds as they are supposed to be at a 90 degree angle. Yours look like they go straight out.

The one with the the red cap is at a 90 but blue isn't. Is there a 90* adapter?

 

[yotadude520]

The one with the the red cap is at a 90 but blue isn't. Is there a 90* adapter?

I don't think so and wouldn't trust doing that anyways. You could have a A/C shop make a custom line or you could bite the bullet and buy the right manifolds on eBay..I can't believe I even found some for sale.

84-88 89 Toyota Pickup 4runner 22r 22re A/C Compressor Suction Discharge... | eBay

<p dir="ltr" style="margin-top:0; margin-bottom:0;">Suction and discharge manifolds with hardware. Both pieces have some light corrosion otherwise in good shape.</p>

www.ebay.com

 

[braddamarlon]

I don't think so and wouldn't trust doing that anyways. You could have a A/C shop make a custom line or you could bite the bullet and buy the right manifolds on eBay..I can't believe I even found some for sale.

84-88 89 Toyota Pickup 4runner 22r 22re A/C Compressor Suction Discharge... | eBay

<p dir="ltr" style="margin-top:0; margin-bottom:0;">Suction and discharge manifolds with hardware. Both pieces have some light corrosion otherwise in good shape.</p>

www.ebay.com

Yeah I was looking at that one and I went ahead and got it. There are 2 other compressors on ebay that has them if anyone is looking or you can buy new from dealer

88371-35020 Genuine Toyota Part

ToyotaPartsDeal.com offers the great deal for genuine Toyota parts 88371-35020 (8837135020) Valve, Cooler Compressor Suction Service for $268.56. All parts are backed by the Toyota's warranty.

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