Close
Car Questions
RepairPal is your advocate for car care advice and guidance

How do i fix, my air to flow through all vents. it only comes out of defroster

(1997 Jeep Grand Cherokee)
in Washington, DC on June 23, 2012
vents will not open and closes
Displaying 2 answers & 2 comments
Popular Answer
on June 25, 2012
Check under the hood near pass. side fender and along fire wall for a broken vacuum line ... may be easier to HEAR a vacuum leak than to see it.(hard pre-molded plastic line --not rubber hose-- very brittle with age& heat) may be taped/wrapped with other lines and covered by corrugated tubing. that's why the listening part is suggested.
Great answer Ziptie!
on June 25, 2012
I'm sorry but I tend to be very sarcastic at times and your reply kinda made me wonder ... Did I actually make sense for a change / If so...Thanks , torque wrench.
First you need to find out if your heater control, is electronic, cable or vacuum controlled? You can remove the control from the dash and look for cables or wires. Next be sure cables, wires or vacuum lines are all attached to the control. Next check to see if the cables, wires etc. are attached to the damper door arms on the heater box under the dash. Move the selector to the differant positions and watch for movement of the arm, check for voltage to electric accuator motors. No movement or voltage repair selector switch or cable, movement be sure motor is running if not replace. Ifall this checks out look for broken damper doors. or leak in vaccum lines.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I actuallu have a 1988 1500. I cannot get air flow from the heater or AC into the middle dash or wundshiled defroster...
Didn't find what you were looking for?