Heating Issue

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Sat Jan 15, 2011 3:35 pm

I just replaced my Blower Motor Resistor and my Blower motor, The heating is great but it only comes out of the floor vents and the defroster. I do not feel any air coming out of the vents on the dash. Please help cause it is severely cold here in INDIANA. If possible would someone please post a tutorial on how to do this.

LeSabre in Buffalo · Post by **LeSabre in Buffalo** » Sun Jan 16, 2011 12:23 am

It's the HVAC vacuum actuator behind the glovebox. Either that, or a vacuum leak somewhere in the lines leading to it. IIRC, if it's broken/no vacuum or off, it defaults to floor vents.

swiles · Post by **swiles** » Sat Jan 22, 2011 5:18 am

make sure you check all the lines one leak could stop the flow of air

willwren · Post by **willwren** » Sat Jan 22, 2011 11:10 am

LeSabre in Buffalo wrote:It's the HVAC vacuum actuator behind the glovebox. Either that, or a vacuum leak somewhere in the lines leading to it. IIRC, if it's broken/no vacuum or off, it defaults to floor vents.

An SE doesn't have the airmix actuator behind the glovebox. That's ECC equipped cars only.

Check the vacuum lines near the programmer above the right front hushpanel. Also make sure the line coming through the firewall from the motor has vacuum and is connected.

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Sun Jan 23, 2011 1:26 am

will....my car has Electronic Climate Control.

willwren · Post by **willwren** » Sun Jan 23, 2011 11:13 am

Ok, please look at your RPO codes for "H4U". Do you have it? If so, please add "SLE PACKAGE" to either your profile or signature. That's one of the determining factors we use to help troubleshoot cars around here. Nevertheless, it's not the airmix actuator behind your glovebox, as your heat is fine. Does the heat adjust up and down correctly? Is your ECC flashing the temperature on startup, or is it acting normal?

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Sun Jan 23, 2011 11:20 am

Fan speeds work, heating is good, it does flash when i start the car up but it eventually stops.

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Mon Jan 24, 2011 12:55 am

problem solved. I replaced the vacuum tank (big blimp object in front of passenger side tire) line because it was completely severed. Heating works great on every vent

00Beast · Post by **00Beast** » Mon Jan 24, 2011 1:54 am

The evap canister?

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Mon Jan 24, 2011 4:16 am

i don't know what you call it...it is that large pill shaped thing in front of the passenger front tire. The line that comes from it was severed so i replaced the line and it works great now...also did willwrens HVAC cleaning method which may have also helped

willwren · Post by **willwren** » Mon Jan 24, 2011 9:11 am

Ed, the Evap canister is on the DRIVER'S side, the vacuum tank for the ECC was relocated to the wheelwell on the passenger side in 1996.

PLAGUE PHANTOM · Post by **PLAGUE PHANTOM** » Mon Jan 24, 2011 10:07 am

so in a way a guess i had a vacuum leak...at least it is fixed now

LeSabre in Buffalo · Post by **LeSabre in Buffalo** » Mon Jan 24, 2011 6:57 pm

I was sorta right in a bass-ackwards way, lol.

Glad to hear it's fixed!

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