defroster problems

84blkstang

Member

Jun 4, 2003

544

1

18

Springfield MO

Dec 18, 2003

#1

• Dec 18, 2003

• #1

After i replaced my heater core everything comes out of the defroster in the top of the dash i have no vent or high low. I pulled off the defroster panel and all of the vaccume lines were hooked up so i pulled off the glove box and they all looked good so i dont know what could of went wrong, also it doesnt blow very good at all just a little air i just think it should blow a lot harder thanks for any advice.

 

84blkstang

Member

Jun 4, 2003

544

1

18

Springfield MO

Dec 18, 2003

#2

• Dec 18, 2003

• #2

ttt

 

J

jerry beach

Founding Member

May 20, 2002

2,671

0

46

Ocala,FL

Dec 18, 2003

#3

• Dec 18, 2003

• #3

Look up into the intake where the blower motor takes in air from inside the car. I think its on the passenger side in the stangs. My Dads T-bird sucked up a plastic bag and would not hardly blow any air, took us a good while to find that. I would use my hand vacuum pump to test the system for leaks as a whole, then narrow it down if you find any. you can get a little pump for $32 or so. It has a guage on it so you can see the leak, and comes with some good instructions to boot. You can pull the vac. line on the engine side of the firewall and pull a vacuum on the stuff in the car. If it holds, no leaks. Maybe a mechanical failure in an actuator or something. Or possibly a mechanical failure of the diversion door itself. Could take some exploring, thats why you go for the simple vac. leak route first.

 

84blkstang

Member

Jun 4, 2003

544

1

18

Springfield MO

Dec 20, 2003

#4

• Dec 20, 2003

• #4

anyone else have an idea what vaccum line would cause me not to have anything but defrosters?

 

M

Mustang Mikey

Founding Member

Jan 26, 2000

120

0

16

Ypsilanti, MI

Dec 20, 2003

#5

• Dec 20, 2003

• #5

On my 85 when I had defrost only I had a bad vacuum line in the engine compartment. It ran across the firewall over to the passenger side to a connector. Then it ran inside the passenger compartment to the heater controls. It was easy to find.

 

84blkstang

Member

Jun 4, 2003

544

1

18

Springfield MO

Dec 20, 2003

#6

• Dec 20, 2003

• #6

ok so where does this line in the engine compartment go to in the heater? i have one by the heater core hoses that is sitting there and i havent touched it but i knew it had to go to somthing but i didnt know what it went to also it isnt very long any other ideas where it goes to in the interior?

 

M

Mustang Mikey

Founding Member

Jan 26, 2000

120

0

16

Ypsilanti, MI

Dec 20, 2003

#7

• Dec 20, 2003

• #7

My hose had a hole in it just before the connector, between the connector and the other end where it attached to the vacuum tree if I remember correctly. When I replaced the hose then all of my heat and cool positions worked again.

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

1,130

233

Indiana

Dec 20, 2003

#8

• Dec 20, 2003

• #8

The vac line should poke thru near where the ac lines are if it has ac. Anyhow Near where the heater hoses are it comes thru fire wall. its a single line that connects to a rubber plug under dash.

 

84blkstang

Member

Jun 4, 2003

544

1

18

Springfield MO

Dec 21, 2003

#9

• Dec 21, 2003

• #9

i found it and connected it and everything works great thanks for everything