2006-10-21 06:17:35 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Check for vacuum leaks. -The "modes" switch by vacuum on most cars!-- If it leaks on the inside,and the engine isn't too noisy, you will be able to hear the "sucking" sound, or possibly a high pitched whistle (more like a squeak)-- as,the air is drawn into the "leak". You might also check under the hood, (looking for the leak) also, you should find a vacuum hose going into firewall near the center-to the passenger side of firewall, - this is what feeds the vacuum to inside.
It is also possible that sdomething has fallen down inside and is blocking door operation!
The "doors are all operated by vacuum, and one of the 'Modules" that pulls doors one way or the other may be unhooked or bad. If you look under dashboard (passenger side easiest to get under), you can then switch control back and forth, and see if any thing is happening in heater area. The noise they make as they operate, - will bring your attention the the air plenum chamber where all the "doors" are. If by chance they are operated by "cables" they will still make noises, (but you can trace them easier with engine turned off, as they don't need the vacuum to operate, (they are strictly mechanical).
Also if you have a vacuum leak that is big enough it will affect the engine at idle somewhat (depending on size of leak) it will run "rough" especially noticeable when first started!
2006-10-21 06:48:40 · answer #1 · answered by guess78624 6 · 0⤊ 0⤋
When the vent control goes bad, it defaults to defrost, because that's what you need the most. You can live with hot or cold or stuffy, but you don't get too far with a fogged or iced up window.
2006-10-21 11:45:47 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋
this is probable the relay swap, which isn't a foul fix. i'm rather particular that on a 2001 this is nevertheless works interior the way which you have one considerable speed of the fan, once you turn it down the relay cuts the voltage to the fan making it blow quite much less. whilst the relay is going it won't decrease the voltage anymore and it in simple terms has the completed power. this could desire to be a inexpensive fix you ought to do your self, or a save ought to do for rather inexpensive too.
2016-12-16 11:31:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
vacumn line or cable
2006-10-21 06:19:19 · answer #4 · answered by vincent c 4 · 0⤊ 0⤋