FEEL HOT AIR from Windshield Vent
#1
FEEL HOT AIR from Windshield Vent
Hey Gang,
I am feeling all of this warm heat from the windshield vent area. I do not have the air or the heater on. I noticed this before but have never asked anyone what might be causing this. I also noticed that my grey sponge like things under the hood near this area are falling apart. Are these what keeps the heat from gettting into the cabin from the engine? Any ideas what my problem is?
Thanks,
Gordon
I am feeling all of this warm heat from the windshield vent area. I do not have the air or the heater on. I noticed this before but have never asked anyone what might be causing this. I also noticed that my grey sponge like things under the hood near this area are falling apart. Are these what keeps the heat from gettting into the cabin from the engine? Any ideas what my problem is?
Thanks,
Gordon
#2
#3
Join Date: Apr 2006
Location: Denver, Colorado
Posts: 25,707
Likes: 0
Received 103 Likes
on
85 Posts
RE: FEEL HOT AIR from Windshield Vent
Gordon what year is your truck, how many miles on it?
Many of the Disco's, including mine doe the same thing and it has to do with the a/c control unit.
Rover has been aware of this for years, they even put an updated control unit but it didn't help.
This next month, I am going to rig up a heater hose by pass to cut of the hot water during the summer.
Mike
Many of the Disco's, including mine doe the same thing and it has to do with the a/c control unit.
Rover has been aware of this for years, they even put an updated control unit but it didn't help.
This next month, I am going to rig up a heater hose by pass to cut of the hot water during the summer.
Mike
#4
#6
#7
RE: FEEL HOT AIR from Windshield Vent
My wife has the behicle in Atlanta for the week and will be returning Friday. I'll post as soon as she gets home and I can read the shop receipts.
It took them a few attempts to correct it. We live in South Carolina where it's very hot and humid. I was ready to trade it in before that got it fixed.
It took them a few attempts to correct it. We live in South Carolina where it's very hot and humid. I was ready to trade it in before that got it fixed.
#8
RE: FEEL HOT AIR from Windshield Vent
I am feeling all of this warm heat from the windshield vent area. I do not have the air or the heater on. I noticed this before but have never asked anyone what might be causing this. I also noticed that my grey sponge like things under the hood near this area are falling apart. Are these what keeps the heat from gettting into the cabin from the engine? Any ideas what my problem is?
#9
RE: FEEL HOT AIR from Windshield Vent
My solution to this was exactly what Aquaholic suggested. Thereseems to be a direct correlationtowhatever the selectedtemperature was when the system was turned off.
It appears as though the cabin temp sensor (still operational even when the system is "off")continues to influencethe "auto"climate control based on the last-selected temp. In other words, youmay have the heat offwhen it's65 degrees outsidebut, if your temp settingwas at 70 when youlast used the heat, the climate controlisgoing to try toraise your cabin temp by 5 degrees.
Obviously, this is some sort of malfunction between the cabin temp sensor, climate control and/or the vent flaps but, short of having the system repaired/replaced, lowering the temp before system shut-down seems to be a pretty good workaround. It should really only be an issue as you transition from winter to spring. Once the outside temps go above any heat setting you'd select, the temp sensorshould be satisfied.
It sounds like Skram's suggestion is similar in theory and makes sense....since ECON will make a "closed loop" out of the system.
It appears as though the cabin temp sensor (still operational even when the system is "off")continues to influencethe "auto"climate control based on the last-selected temp. In other words, youmay have the heat offwhen it's65 degrees outsidebut, if your temp settingwas at 70 when youlast used the heat, the climate controlisgoing to try toraise your cabin temp by 5 degrees.
Obviously, this is some sort of malfunction between the cabin temp sensor, climate control and/or the vent flaps but, short of having the system repaired/replaced, lowering the temp before system shut-down seems to be a pretty good workaround. It should really only be an issue as you transition from winter to spring. Once the outside temps go above any heat setting you'd select, the temp sensorshould be satisfied.
It sounds like Skram's suggestion is similar in theory and makes sense....since ECON will make a "closed loop" out of the system.
#10
Join Date: Apr 2006
Location: Denver, Colorado
Posts: 25,707
Likes: 0
Received 103 Likes
on
85 Posts
RE: FEEL HOT AIR from Windshield Vent
There have been a couple of TSB written from Rover and they will be the first to tell you there is no easy fix. It is the control unit, they quit trying to reprogram it in late 02 and what you have is what you got.
The only fix is to by-pass the heater hose and hook them back up in the winter, at least that way you can let outside air in with out the heat.
Mike
The only fix is to by-pass the heater hose and hook them back up in the winter, at least that way you can let outside air in with out the heat.
Mike