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Yes it's the milky plastic box. Make sure you fill both sides up to the line. Be careful not to get dirt in the line or let in run too low, it could cause problems in the hydrolic line and require replacement of master and slave cylinders.
look on the brake booster located on the drivers side of the firewall. the vacuum line should run to it
The vacuum line diagram is not available for free. It will have to come from the Ford service book, or from a Ford dealer.
line might be plugged or pump is burned out
The hose diameter has stretch bigger then factory specks. Or the vacuum pressure is higher than expected.
The vents are opened and closed by vacuum. There should be a vacuum line running from the engine to the inside of the Trailblazer. That line is broken somewhere and it is not sending vacuum to the switch. That will cause it to blow to the top of the dash (defroster) and to the bottom (floor.) Find that line trace it back and splice a new line in where it is broken. That should fix the problem.
The heater box is all electric on a 2004 Dodge Ram.
MARUTI SUZUKI MARUTI SUZUKI
There are a few cheaper 2013 models in the Suzuki line of vehicles . Some of the cheaper 2013 models are the '2013 Suzuki Sx4 Sedan' and the '2013 Suzuki SX4 Crossover'.
The Vacuum line usually connects to the brake booster , or atleast it does in my Ford explorer
where is the 2002 oldsmobile alero cruise control vacuum line?
When replacing or making changes to the vacuum line of a car, it comes in handy to have a diagram. A diagram for this cars vacuum line can be found in the maintenance manual.