2004 Escalade Vacuum Lines? February 27, 2013 Solutions Central › 2004 Escalade Vacuum Lines? 0 Vote Up Vote Down BPfan Staff asked 12 years ago I cannot find a vacuum line on my 2004 Escalade vortex 6000... Where do I can the Berryman Combustion Chamber Cleaner? 1 Answers 0 Vote Up Vote Down chemtooler Staff answered 12 years ago If you cannot locate the PCV valve, you can also use the brake booster vacuum line. The brake booster is located on the driver's side against the firewall. Please login or Register to submit your answer Username or Email Address Password Remember Me