0
What would cause air to only blow from the defrost vents and not blow out of the panel vents even when the switches are turned to max ac in a 1997 S-10 blazer?
Wiki User
∙ 14y ago
mouse or rat nest inside of duct work under the dash and behind it also look at fan mot er the wheel or cage gets full of mice and their nests , mine did that's how i know or you may have a vacuum line behind dash unplugged
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Heat works only on defrost no other vents on 96 Chevy blazer?
Check the 96 Blazer for any vacuum leaks in the system. A vacuum leak can cause the air flow to only come out of the heat vent.
What would cause engine to make noise when defrost is turned on?
The A/C system compressor operates when in the defrost mode. If the noise is also heard when running the A?C it is more than likely a problem with the compressor/pulley.
What would cause air to only blow from the defrost and floor vents and not blow out of the panel vents even when the switches are turned to the panel vents in a 2002 Ford Explorer?
Any of the following can cause this......... 1. Bad a/c - heater controller.. 2. Bad a/c - heater controller inside door operation.. 3. Bad, broken or cracked vacuum line/lines..
What cause the security and dome light not turning off when you lock your 2001 blazer?
Be sure the dome light switch is not turned on manually.
What would cause air to only blow from the defrost vents and not blow out of the panel vents even when the switches are turned to max ac in a 1995 Ford Explorer?
Check all of your vacuum lines from the ac control panel and under your hood. You have lost vacuum somewhere witch controls your vents. There is one of them loose, disconnected or broken. Should be easy to trace. Good Luck!!
What would cause a knocking sound under the hood on a 2004 Chevy trail blazer when the Ac is turned on?
The ac compressor is shot. Usually what your hearing is a bearing that is moving around.
On a dodge ram 1500 why does the defrost only work if its on high?
The most common cause for the defrost not properly working is a malfunctioning blending door. The blending door might be stuck halfway open. This would cause the defrost not to work unless the fan is on high.
Could a faulty catalytic converter cause defrost system not to work properly?
No, the catalytic converter has nothing whatsoever to do with your defrost system.
What could cause a heater to not function properly in a 1997 Grand Prix?
not function how. No heat, not enough, no fan doesnt' change heat to defrost? All different answers. No heat, not enough, May just be low on coolant. Therostat stuck open. No fan, fuse, ground, switch. Doesn't change heat/defrost? Cable, control, some switches are vacumn operated.
Do you warm the pork steaks on full power on defrost mode to defrost before cooking?
This isn't likely to cause any problems. A viable solution would be to check for the "meat" section to find out exactly which strength to defrost.
What would cause smoke to blow through the defrost of a 1990 Ford F 150 while the heater is switched on?
In many cases leaves can cause smoke to blow through the defrost of a 1990 Ford F 150
What would cause rear defrost switch and heater switch to quite working on a 1992 geo metro no fuses are blowing?
Are you talking about two separate switches? The rear defrost switch might have corroded contacts or a bad spring mechanism. The factory manual recommends you pull off a few covers and drop the steering column to get to the defrost switch, but I found that some careful prying at the top and bottom of the defrost switch where it meets the dash with a knife point or thin flat screwdriver will get it to pop out. If you are adventuresome, pop the switch open and clean the contacts (look out for a flying spring!) , otherwise get one from the dealership or friendly local junk yard.
