All times are UTC - 6 hours [ DST ]




Ask A Question Reply   
Author Message
 

contributions: 2
I have a 1999 Silverado 1500 .When you turn on the blower for the AC or the heater you can hear the blower running but no air comes out of the vents. Is there a relay or sensor that could be bad? Air does come out of the top vents when defrost is on. Air comes out of bottom vent also. 10 amp fuse for ac/heater is good.


   
Reply with quote  
* Search   
 
User avatar

contributions: 2275
Images: 37
Location: Oregon
check your heater-ac fuse 10 amp in the left side fuse panel.

the mode door motor is on the left side of your heater box. can you hear it come on when you change the mode from vent ot heat or defrost?

do you have air flow out of any vent when the blower is on high? do you have air coming out of the top vent when you have it on defrost? do you have air flowing out of the floor vent when you put it on heat?

do you feel a temperature change when you go from all the way hot to all the way cold?

Need more information...

you could have a bad mode door, door actuator, no power the the actuators, blocked incoming passage,


   
Reply with quote  
Ask A Question Reply   

   Similar Topics   Author   Replies   Views   Most Recent 
New Articles View the first Belt keeps coming off my Chevy Truck

in Chevy Silverado

Pauloo2

2

3725

Sun Sep 20, 2015 12:14 pm

stevep View the latest

New Articles View the first Attachment(s) GMC Envoy very little air from vents

in GMC Trucks

chevyman

7

3681

Sat Aug 27, 2016 1:07 pm

carriedi View the latest

New Articles View the first Why does my parking break light keep coming on while driving

in Chevy Silverado

Jonluvz4wheeldrives

1

1387

Fri Jul 26, 2013 11:13 pm

carriedi View the latest

New Articles View the first ABS light coming on/off & brake pedal slipping on right turn

in GMC Trucks

tanyafifth

1

1636

Thu Feb 20, 2014 10:19 pm

TerryAuto View the latest

New Articles View the first Attachment(s) low airflow when on heat out of main vents

in Chevy Trailblazer

matt

8

3872

Sat Jan 19, 2013 3:10 pm

matt View the latest

New Articles View the first Rear heater vents not working on 04 trailblazer.

in Chevy Trailblazer

AimeeYac

1

1858

Thu Feb 07, 2013 12:00 am

Karl View the latest

New Articles View the first 2005 Silverado Driver Side Vents Hot with AC On Passenger

[ Go to page: 1, 2 ]

in Chevy Silverado

Nanx2

10

9932

Wed Dec 08, 2010 10:31 pm

herbjason1 View the latest


All times are UTC - 6 hours [ DST ]



Search for:
Jump to:  
Contact Us