Great explaination and walkthrough tour of the PT's vacuum lines! I'm currently replacing my hard lines with black silicone 5/32 & 3/16 (4 & 5mm) hoses. The intake side is such a rat nest. Working on a manifold to replace all the weird Tees and secure against the firewall along the hood gasket lip in some plug wire separator/dividers to get everything cleaned up! Might need to do some clean labels on both ends in case it ever goes into a shop. lol
@philsowers Thank you for the feedback! It sounds like you are working on a cool upgrade to the lines. It would be great if you could share the progress or at least the completed project once you are done. Take care, Shane of PTBubbles
Excellent video, came here looking to find out why my vacuum ejector is spitting oil, and I suspect it's from the turbo discharge port. Does this mean my turbo blew a seal?
@altema22 Thanks for the visit. That does sound like a seal was blown if oil is coming out of a vacuum port. You can find replacement Turbos for the PT pretty easily (many include the exhaust manifold with it).
@stevec6898 I believe you are referring to the plastic line that joins the T-Junction on the Turbo-side (pause at 11:10 or 11:36 and you will see the T-junction) If so then it is part of the "circular loop" of hoses all in that cluster. This is the same junction that the hose you asked about at 9:18 connects to. In fact they connect side by side on that junction.
No this hard plastic 1/4 line comes from by the map sensor. It is teed off of the vertical hose right below the top tee. It turns up about 3 inches and turns towards the turbo side. It turns towards the front for about 3 inches, down 3 inches, back to the right 2 inches with a barbed end. About halfway between the turbo intake and the master cylinder reservoir. It also seems that the only vacuum supply for the whole system is from the small line coming from the brake booster??
@@stevec6898 I'll answer your last question first. There are other larger vacuum lines in the system (such as the Brake Booster to the Intake Manifold - about a 3/8" size hose, and the Proportional Purge hoses and the PCV hose). This video was focusing more on the Turbocharger specific lines/hoses since they are unique and more complicated then the N/A 2.4L configuration. Other than the specific Turbocharger lines, the Turbo and N/A vacuum lines are almost identical - just minor variations. Apologies if I am not narrowing in on the exact hose you are asking about but here is what I think you are identifying: First just a couple clarifying items: • The MAP sensor would be considered to be positioned on the Passenger side (on the Intake Manifold) • The TIP (Throttle Inlet Pressure Solenoid - specific to Turbo models only) is also on the Passenger side mounted on the Firewall/Wiper Cowel lip. • I believe the hose you are identifying Tees off of the junction right next to the TIP sensor on the Firewall and connects in the following locations: ---Small black plastic hose travels in the passenger-side direction inside the Turbo Vacuum Line loom and goes to the Turbo Solenoid #1 (the TIP Solenoid) which is the rear-most solenoid with the RED electronic connector ---Rubber hose travels downward along the firewall to the Purge Valve (which is mounted on the A/C Drier assembly) ---2 larger plastic hoses come off of this Tee and travel towards the drivers side inside the Turbo Vacuum Line loom. One of these connects to the top of the throttle body and the other connects to the "circular loop" of lines/hoses I describe in the video and in my other response to you. I hope this helps.
Can you confirm which solenoid number goes to which colored connector? I want to make sure I didn't swap mine around when I replaced my mid mount/timing belt/upper motor mounts.
@philsowers You mean the electrical and not the Vacuum tubing, correct? Here is how mine are connected: #1 (closest to the rear of PT and Cruise Control Diaphragm) = Red #3 (Center connector) = Blue #2 (Closest to the front of PT) = Green I hope this helps!
@@PTBubbles It does, thanks! The numbers wore off my solenoids so when i did the belt work I removed them, but incorrectly numbered them 1-3 in order "incorrectly". Finished replacing most of the hard vacuum lines with reinforced silicone hoses to run between components and solenoids. Going to wrap up the project with a vacuum manifold to clean up the rat nest of ejectors, Tees, check valves, 90s, and hard lines that stick up and flop around in the engine bay on the intake/driver's side. I'd like to make a final solution with rigid 1/4" Push-To-Connect nylon tubing and connectors, but they're not as forgiving as the silicone hoses since connections will requiring installing threaded adapters and couplers to change diameters, not to mention the solenoids are a male connector that's not able to be tapped. Might just be content with the silicone for now.
@@philsowers This sounds really interesting. If you captured photos or video of what you've done I'd be happy to share it in a video unless you'd rather yourself. Thanks for sharing the description though - I hope it works well and you can wrap it up nicely.
You should be able to trace the hose back from the solenoids to see which one isn't going anywhere or is unplugged, then get some 4mm hose to replace it. Depending on which side of the engine, I'm guessing it's the intercooler, but depending on what you meant by "downpipe" it could also be the turbo wastegate, or bov (charged air valve) line.
At approx 9:18 you show the black plastic hose that splits into two. One goes to brake booster . Where does the other one go? You shake it and mention a "circular thing " but do not define exactly where the other lines go in the circular
@stevec6898 Thanks for the question. If you keep an eye on the lines between 9:18 and about 12:30 you can see how they connect better. That 2nd line you mention connects to the "circular" set of hoses right where the two large rubber fittings are (pause the video and look slightly to the right of center screen at 9:37 - those two rubber fittings that join into a plastic junction. I am also holding the junction where that 2nd hose connects at 10:03). At 10:51 you will see the large plastic hose that comes down from that junction right behind the loom with the 3 plastic colored hoses. Those are all actually joined at a T-junction where connections split off to the following (pause at 11:10 or 11:36 and you will see the T-junction): 1) Cold Air Intake (larger rubber hose) (I am holding it in my hand at 10:14) 2) Rubber hose on the larger driver-side Turbocharger port (not the smaller rear connection) pause at 11:49 3) Smaller plastic hose that goes to the rear connection on the Turbocharger - watch close around 12:00 - 12:30 4) Blow-off Valve Surge Valve Actuator) - watch around 10:30 Hopefully this helps.
Great explaination and walkthrough tour of the PT's vacuum lines! I'm currently replacing my hard lines with black silicone 5/32 & 3/16 (4 & 5mm) hoses. The intake side is such a rat nest. Working on a manifold to replace all the weird Tees and secure against the firewall along the hood gasket lip in some plug wire separator/dividers to get everything cleaned up! Might need to do some clean labels on both ends in case it ever goes into a shop. lol
@philsowers Thank you for the feedback! It sounds like you are working on a cool upgrade to the lines. It would be great if you could share the progress or at least the completed project once you are done.
Take care,
Shane of PTBubbles
Thank you that diagram is confusing had overboost problem guess helps if right line is on the wastegate
@travakin4590 Glad it helped and thanks for commenting. Take care.
Excellent video, came here looking to find out why my vacuum ejector is spitting oil, and I suspect it's from the turbo discharge port. Does this mean my turbo blew a seal?
@altema22 Thanks for the visit. That does sound like a seal was blown if oil is coming out of a vacuum port. You can find replacement Turbos for the PT pretty easily (many include the exhaust manifold with it).
There is also a plastic line that comes from the tee by map sensor to the turbo side and points to drivers side. What hooks up to it?
@stevec6898 I believe you are referring to the plastic line that joins the T-Junction on the Turbo-side (pause at 11:10 or 11:36 and you will see the T-junction)
If so then it is part of the "circular loop" of hoses all in that cluster. This is the same junction that the hose you asked about at 9:18 connects to. In fact they connect side by side on that junction.
No this hard plastic 1/4 line comes from by the map sensor. It is teed off of the vertical hose right below the top tee. It turns up about 3 inches and turns towards the turbo side. It turns towards the front for about 3 inches, down 3 inches, back to the right 2 inches with a barbed end. About halfway between the turbo intake and the master cylinder reservoir.
It also seems that the only vacuum supply for the whole system is from the small line coming from the brake booster??
@@stevec6898 I'll answer your last question first. There are other larger vacuum lines in the system (such as the Brake Booster to the Intake Manifold - about a 3/8" size hose, and the Proportional Purge hoses and the PCV hose). This video was focusing more on the Turbocharger specific lines/hoses since they are unique and more complicated then the N/A 2.4L configuration. Other than the specific Turbocharger lines, the Turbo and N/A vacuum lines are almost identical - just minor variations.
Apologies if I am not narrowing in on the exact hose you are asking about but here is what I think you are identifying:
First just a couple clarifying items:
• The MAP sensor would be considered to be positioned on the Passenger side (on the Intake Manifold)
• The TIP (Throttle Inlet Pressure Solenoid - specific to Turbo models only) is also on the Passenger side mounted on the Firewall/Wiper Cowel lip.
• I believe the hose you are identifying Tees off of the junction right next to the TIP sensor on the Firewall and connects in the following locations:
---Small black plastic hose travels in the passenger-side direction inside the Turbo Vacuum Line loom and goes to the Turbo Solenoid #1 (the TIP Solenoid) which is the rear-most solenoid with the RED electronic connector
---Rubber hose travels downward along the firewall to the Purge Valve (which is mounted on the A/C Drier assembly)
---2 larger plastic hoses come off of this Tee and travel towards the drivers side inside the Turbo Vacuum Line loom. One of these connects to the top of the throttle body and the other connects to the "circular loop" of lines/hoses I describe in the video and in my other response to you.
I hope this helps.
Can you confirm which solenoid number goes to which colored connector? I want to make sure I didn't swap mine around when I replaced my mid mount/timing belt/upper motor mounts.
@philsowers You mean the electrical and not the Vacuum tubing, correct?
Here is how mine are connected:
#1 (closest to the rear of PT and Cruise Control Diaphragm) = Red
#3 (Center connector) = Blue
#2 (Closest to the front of PT) = Green
I hope this helps!
@@PTBubbles It does, thanks! The numbers wore off my solenoids so when i did the belt work I removed them, but incorrectly numbered them 1-3 in order "incorrectly". Finished replacing most of the hard vacuum lines with reinforced silicone hoses to run between components and solenoids. Going to wrap up the project with a vacuum manifold to clean up the rat nest of ejectors, Tees, check valves, 90s, and hard lines that stick up and flop around in the engine bay on the intake/driver's side. I'd like to make a final solution with rigid 1/4" Push-To-Connect nylon tubing and connectors, but they're not as forgiving as the silicone hoses since connections will requiring installing threaded adapters and couplers to change diameters, not to mention the solenoids are a male connector that's not able to be tapped. Might just be content with the silicone for now.
@@philsowers This sounds really interesting. If you captured photos or video of what you've done I'd be happy to share it in a video unless you'd rather yourself.
Thanks for sharing the description though - I hope it works well and you can wrap it up nicely.
What hose is the the small one on the down pipe mine is missing in it
@user-uh3gh5mz6e Apologies - can you specify which pipe you mean? The Oil Drain Pipe? Or the Exhaust Downpipe/Elbow? Or something else?
You should be able to trace the hose back from the solenoids to see which one isn't going anywhere or is unplugged, then get some 4mm hose to replace it. Depending on which side of the engine, I'm guessing it's the intercooler, but depending on what you meant by "downpipe" it could also be the turbo wastegate, or bov (charged air valve) line.
At approx 9:18 you show the black plastic hose that splits into two. One goes to brake booster . Where does the other one go? You shake it and mention a "circular thing " but do not define exactly where the other lines go in the circular
@stevec6898 Thanks for the question.
If you keep an eye on the lines between 9:18 and about 12:30 you can see how they connect better. That 2nd line you mention connects to the "circular" set of hoses right where the two large rubber fittings are (pause the video and look slightly to the right of center screen at 9:37 - those two rubber fittings that join into a plastic junction. I am also holding the junction where that 2nd hose connects at 10:03).
At 10:51 you will see the large plastic hose that comes down from that junction right behind the loom with the 3 plastic colored hoses. Those are all actually joined at a T-junction where connections split off to the following (pause at 11:10 or 11:36 and you will see the T-junction):
1) Cold Air Intake (larger rubber hose) (I am holding it in my hand at 10:14)
2) Rubber hose on the larger driver-side Turbocharger port (not the smaller rear connection) pause at 11:49
3) Smaller plastic hose that goes to the rear connection on the Turbocharger - watch close around 12:00 - 12:30
4) Blow-off Valve Surge Valve Actuator) - watch around 10:30
Hopefully this helps.