By-pass Charge Valve - P1110 vacuum line question

[MikeB63]

I got the P1110 code which I got about a year ago. At that time I changed the vacuum line from the solenoid to the charge valve as I noticed it disconnected and brittle. This time I noticed this line disconnected again. After reconnecting with no loss of CEL, I changed the by-pass valve. When doing so I found the hose disconnected again. I connected it and checked for a snug fit. I drove the car about 100 miles and for the hell of it checked the hose again-disconnected!🙄 Is there any way this line can get pressurized and blow the hose off the nipple at the solenoid valve?

[walawala]

when you are on boost, all lines are pressurized. use some cable tie to hold it in place, or get a smaller diameter vacuum line.

[MikeB63]

That's actually exactly what I was thinking of doing. I'm guessing that maybe in the summer heat here that the tubing got soft and expanded making the connection loose enough to come apart. I had thought that the purpose of this connection was to hold vacuum on the charge valve diaphragm. I didn't realize this line became pressurized with turbo boost. Thanks for the response.