What causes the AC fan to blow at top speed but not much air to come through the vents on a 1997 BMW 328I?
This here can be a number of things, first of all if your blower is running in only high speed, i would first try to put in a new final stage blower resistor, its located behind the center console on the drivers side, actually right to the right on the gas pedal, also if you are not getting much air to come through the vents i would also try to replace the micro air filter, which if never changed can be clogged causing air restriction, this is also located behind the center console, easy to get to if the glove box, and lower air duct is removed on the passenger side. try doing those simply task first, if still nothing is working, it could be defected air flap in heater box, or fautly ac control module. good luck
this one is easy your switch the controls the vents is not working there is a flap the closes the defrost vents so that it goes through the other vents or there is a vacumn line that is controlled by the switch, and its leaking. The vacumn line is usually on the engine side of the firewall. It is a very small plastic tube comming out of the middle of the firewall at the top…
Where Can you get a vacuum diagram for a 1997 Jeep Wrangler your AC is only blowing through the defroster vents so you think you have a vacuum leak or a bad actuator?
What would cause the windshield defroster in a 1997 Saturn SL1 to only blow air from the panel vents and floor vents instead of the defrost vents?
IF a Vaccume hose comes off OR is bad going 2 the DASH Controls that will happen OR a bad Actuator or Actuator door (stuck) will cause that.Make sure the vaccume Canister is not cracked (if it hs one) Usally it's a very small Vaccume line(hose) that causes the Problem. You either have a vacuum leak in the heater control system, or a cable that has come off of its control panel...
Why does the air conditioning in your 1997 Jeep Cheerokee blow cold but randomly switches from blowing through the vents and the defroster?
vacuum controlled doors ...vacuum leak or a pen or pencil down the vents....look at some pics Everyone should have a manual for their vehicle, and the library should have a professional shop manual available in the reference section(make copies of the right sections) read up and fix it like a PRO! :) good luck
Cool air flows from drivers side vents and warm air flows from passengers side vents on a 1997 Buick Lesabre?
1997 Buick Park Avenue the air just blows from the defrost vents and no where else What could cause this?
Check first that something hasn't gotten into the vents. Sometimes things left on the dash board drop into the vents and make noise as the air passes over them. Also some of the air fresheners people plug into the vents may make a little noise. It is also possible that the compressor in you ac system is starting to fail.
What causes air to blow out the floor and defroster vents but not out the panel ac vents on a 1997 Buick LeSabre?
Might have a bad vacuum motor for one of the doors for the ducts. Most likely U have a Vacume leak @ the Vacume Canister or a bad Vac hose.The hoses are very small(about 1/8 or 3/16 inch)Some- times its a Actuator 4 the mixer doors but mstly its just a small Vacume leak.Check the hoses from the intake manifold to the fire-- wall,Thet T off & becme very small.