Let's Talk about Check Valves....
#1
Let's Talk about Check Valves....
So, as you know I am going twin turbo. I plan to run a vacuum hose from the brake booster port on the intake to a vacuum block, then run all of the vacuum lines from there - including the brake booster. I hear some say yes you need check valves, and some say you don't.
Do I actually need check valves? If so, where?
Do I actually need check valves? If so, where?
#6
TECH Addict
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Originally Posted by Hardcoresoldier
since I am having a single vacuum hose going to the vacuum block (then everything vacuum related going from there) should I place a check valve between the intake and the vacuum block?
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#10
TECH Resident
I'd consider splitting the vacuum system up. The HVAC needs a check valve, unless you like it switching to the defroster ducts every time you get under a load. There is a GM model (I want to say S10 or maybe Trailblazer, help me here guys) with a check valve on the brake booster that has a port for the HVAC. If you have cruise control, you also will want to check valve that. The others could be run off a good vacuum tree.