About Ed Eliassen Expertise I am a Cadillac certified master tech,i have 15 yrs of cadillac exp,i am a ASE cert master tech,i specialize in cadillac drivability and electrical along with advanced troubleshooting all yrs of cadillac.
Experience 15yrs with cadillac,cadillac master certified,ase certified master tech,specialize in advanced diag and repair of electrical and drivability.
Question There are three vaccume hoses that go from the computer area through the bottom right passenger side of the fire wall. On the engine side of the fire wall, the first hose goes to a connector and then to the tire side, The second hose goes to a bell shaped peice with two large hoses going into the bell peice, and the third hose is hard plastic, and goes into the throttle body area. As far as disconnecting them from the computer, they all feed into a white rubbery square clipped on to a black plastic box to the left of the ECM which one is the VAC and how do I replace the hose(hose #2 is pretty beat up)
Thank you so far youve been very helpful
Will
Answer Will
The hard plastic one that goes from the throttlebody is the one that goes to the map sensor,the second hose i think if im going by you discription is going to the cruise servo,that you can just cut the bad section of and reconnect,the black plastic box next to the ECM is the HVAC programmer/controler.did you locate the map sensor above the ECM,it should have a stand alone vacuum line,you can get to it by removing the glove box.
