I launched my truck today for the first time and noticed right away that while under boost it sounds like its sucking air. It's rather loud and very noticeable from inside the truck with the windows up, i recently replaced all the vacuum lines on the truck and i don't know if this is related to the noise but my heater/ac controls don't work anymore, they did before i changed the lines so i double checked and there all connected, any ideas?
Strange noise under boost?
- Thread starter SY2767
- Start date
wantingasy
Active member
Re: Strange noise under boost?
Boost leak? Do you have the rubber hose from the turbo to the intercooler? If so, inspect that very closely.
Boost leak? Do you have the rubber hose from the turbo to the intercooler? If so, inspect that very closely.
gjp
another post whore
Re: Strange noise under boost?
here is the diagram for a stock vacuum setup top of 1st post. you can see in the picure the way the valve face. The valves are supposed to stop boost pressure from reaching the various parts of truck.
http://www.syty.net/forums/showthread.php?t=38259&highlight=vacuum+diagram
here is the diagram for a stock vacuum setup top of 1st post. you can see in the picure the way the valve face. The valves are supposed to stop boost pressure from reaching the various parts of truck.
http://www.syty.net/forums/showthread.php?t=38259&highlight=vacuum+diagram
Re: Strange noise under boost?
According to the vac diagram on my truck (the sticker by the fan shroud) the valve nearest to the firewall (the one with 3 fittings) should be facing the opposite direction compared to the diagram listed above. I turned it around and now all my heater/ac controls function normally.
According to the vac diagram on my truck (the sticker by the fan shroud) the valve nearest to the firewall (the one with 3 fittings) should be facing the opposite direction compared to the diagram listed above. I turned it around and now all my heater/ac controls function normally.