@Blazen: this IAC hose (turbo cars, from airbox to turbo) holds 850's secret -- PTC. PTC is integrated into this hose (about $ 85 from FCP), and that PTC is the heartbeat of the Volvo's PCV system. If the hose is fine, you don't have to replace it, but make sure you clean the PTC, along of course with the rest of the PCV. Your new-used motor will eat up your seals if PCV is blocked.

 

Good info guys and your right @ Henry about giving the status of the car when mentioning your issue, my apologies to Gilbert. No excuse but was a little put off by this problem. I had the PCV system replaced when the motor was done, I'll do some research on the PTC and the IAC line I have no idea where or what there are but, I do have a manual so I'll look into it. I really appreciate the help. I've had the car back for about 3-4 months, the timing belt, turbo, plugs, rotor, cap, and PCV system were done during the motor swap. new motor had 98,000 miles on it and I've probably put about 3000 miles on it. I do see any leaks anywhere like before with the bad PCV system(old motor) and no smoke however I did see smoke out of the dip stick tube when I pulled it while the motor was running.

 

Were the wires also replaced? I have heard of wires being a weak point under hard acceleration. I can't imagine someone installing a motor without doing a stage 0 with new cam seals.

 

IAC=idle air control.

This hose is located from the IAC, which is right at the throttle body and then connects to the tip of the vac tree if I remember correctly. shaped like an S. That's the hose I blew out.

 

do you want me to send you a photo of one? remove the cover from the top of engine you will see them.... if you have got leads then ??????????

FROM GOOD OLD BLIGHTY THANK YOU...... And did we assertain that it was a brand new engine? out the box? new engines very rarely come with ancilleries as well ..... dont trust any parts always check!

 

I think it has like 98k miles on it or something. lol

 

What I meant by new was the replacement motor, I didn't want to confuse anyone. My apologies if my mentioning the new used motor did.

 

I don't believe any, natta, zero, 850's in the US has ignitors, they all have plugs and wires.

 

Update: I removed the throttle body cover to find a tree under there with three hoses attached to it, there is a fourth port open do it need to be plunged some kind of way? Also the hose shaped like the picture has two holes in it and the clamp is missing on one end . The holes are from a clamp on another hose just behind it. I still have to wait until the silicon ones come some time this week and I'll update then.

 

Sounds like you may have found your problem. Post a real pic of what you see torn.

 

Sure thing I'll pull it back off tomorrow and post pictures

 

I am not sure what I am looking at. Go to http://www.volvopartswebstore.com/sh...&searchString= and tell us what item # is the problem...


While Gilber33 was talking about the IAC, I was talking about the intake duct item # 22, in this diagram:

http://www.volvopartswebstore.com/sh...&searchString=

 

The hose with that's missing the clamp is 19 and that hose is also the one with the holes in it. The hose that it's connected to the lager one has some kind of nasty silicon substance coming out of the back side of it. Which one would be the IAC hose in this picture? Oh BTW 22 was replaced with the motor. This hose goes into the throttle body and has a little hose coming off of it.

 

Not sure again, maybe I shouldn't have sent 2 diagrams. I don't know which one you are referring to...

 

19 Is a soft vacuum elbow that usually does not have a clamp. One of them connects near the turbo to the PTC valve and the other under the passenger side of the intake. Both will cause a CEL light and cause a little running issue. Not sure how much it will effect the preformance. The PTC does need to be clean and that is a major part of the PCV system.

 

You also do not want an open port on your vacuum tree. There should be a cap over it if there is no hose running form it.

 

The hose on one end don't have a clamp and the other end is connected to something one one side there is another hose on the lower side, that hose has two holes in it. The tree that's in the picture looks like it's missing something one port is open. I apologize in advance for the motor being dirty the old one was polished I haven't had time or good weather to do this one yet.

 

That is the idle control valve. I have the T-5R and the bottom two ports on mine are capped off, the other ports have the vac lines connected to them.

 

I have to find a cap for it , I hope the hoses fix this issue. If it wind up being a issue with the motor I have to let it go. If the hoses fix it I'll be swapping the turbo, getting a turbo back system, intake manifold and getting a tune.

 

So if the motor has a problem, which is sounds like it doesn't, you'll dump the car. If the motor is fine, you're going to drop $2k in it???