Where does this vacuum line go???
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Senior User
Joined: Oct 2006
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From: SE of Bennett Colorado
Where does this vacuum line go???
89 F250, 460 V8, C-6 Auto
I have a PINK vacuum line that I just noticed has one end disconnected.
I found the line broken and disconnected on one end.
Using the picture, can anyone tell where the other end should be connected to? There is not an open port on the vacuum tree behind the distributor so I don't think it was there.
I have a PINK vacuum line that I just noticed has one end disconnected.
I found the line broken and disconnected on one end.
Using the picture, can anyone tell where the other end should be connected to? There is not an open port on the vacuum tree behind the distributor so I don't think it was there.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
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From: Easton,Ks
Not sure if it is the pink line but off of that VALVE ASSY., (Thermactor Air Control Solenoid Vacuum) one line goes to a VALVE ASSY., (Thermactor Control) and the other goes to a vacuum check valve. After the check valve it goes to the one of the vacuum RESERVOIR ASSY.
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Senior User
Joined: Oct 2006
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From: SE of Bennett Colorado
Subford,
Well, sorry, I couldn't quite understand what you were trying to say.
However, while I was checking the tranny fluid (it's been slipping quite a bit) I noticed/heard a sucking nozzle coming off what looks to me like a PCV valve. (there was a larger hose connected to the same device)
I put my finger over it and the truck idled better, then I stuck the other end of the pink plastic hose (I call it a vacuum line) to that nozzle.
Truck seems to be running fine.
Yes, the red lines went to the top of a black canister, all those lines seem intact.
Well, sorry, I couldn't quite understand what you were trying to say.
However, while I was checking the tranny fluid (it's been slipping quite a bit) I noticed/heard a sucking nozzle coming off what looks to me like a PCV valve. (there was a larger hose connected to the same device)
I put my finger over it and the truck idled better, then I stuck the other end of the pink plastic hose (I call it a vacuum line) to that nozzle.
Truck seems to be running fine.
Yes, the red lines went to the top of a black canister, all those lines seem intact.
New User
Joined: Jun 2011
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My 88 F350 with 460 EFI motor also has a broken pink vacuum line. The smog control equipment was removed by previous owner. Should I just plug this line?
The truck has ran decent, except for some fuel issues. Would this broken line have anything to do with the cruise control not working?
Thanks in advance.
The truck has ran decent, except for some fuel issues. Would this broken line have anything to do with the cruise control not working?
Thanks in advance.
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Logistics Pro
Joined: Mar 2005
Posts: 4,698
Likes: 47
From: Mexico, Missouri
Well, more than likely, if this line isn't attached and broken, there is a vacuum leak and that's not good, but only if it's still connected to a vacuum source. I woud trace the line to where it originates and plug it with a rubber plug.
Your cruise control issue is more in depth. There were several good post in the last couple of months concerning some F-350's that had similar cruise control problems. May want to do a search for this. If the vac line for cruise control servo is leaking, that will give you problems as well.
Your cruise control issue is more in depth. There were several good post in the last couple of months concerning some F-350's that had similar cruise control problems. May want to do a search for this. If the vac line for cruise control servo is leaking, that will give you problems as well.
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New User
Joined: Jun 2011
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The vacuum line is broken off right about where the red arrow is in the picture in the first post on this thread. I know it goes across the engine, as there are broken parts of it in flex-loom with other lines. From there I believe it went to some smog equipment that was removed, and the line was never plugged.
I guess plugging it should not hurt anything, it can only help keep vacuum by being plugged.
Thanks!
I guess plugging it should not hurt anything, it can only help keep vacuum by being plugged.
Thanks!
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