dashboard vents
#1
dashboard vents
Guys
I can't seem to get any air through the dash vents. The blower is working and blows through the floor and windscreen (defrosher) vents. No matter what setting I have the vent lever (normal or bi-level, or any other), it never blows through the dash vents. I assume this is a mechanical control (what switches the air flow from floor/dash/defrosh vents)?
Any ideas what this might be??
thanks
Wilbo
I can't seem to get any air through the dash vents. The blower is working and blows through the floor and windscreen (defrosher) vents. No matter what setting I have the vent lever (normal or bi-level, or any other), it never blows through the dash vents. I assume this is a mechanical control (what switches the air flow from floor/dash/defrosh vents)?
Any ideas what this might be??
thanks
Wilbo
#3
ah, that could make sense. I've been doing a lot of work in and around hood/firewall recently. Is there a specific hose/line I should look for? Should I look under hood or inside cab? I suspect I've dislodged something
Not sure if this is related but recently I've noticed the idle isn't steady and I know this can be related to vacuum??
many thanks
Wilbo
Not sure if this is related but recently I've noticed the idle isn't steady and I know this can be related to vacuum??
many thanks
Wilbo
Last edited by wilbo; 05-24-2010 at 02:06 AM.
#4
#5
Wilbo
#6
If you mean the hot/cold air mix (blend door) then no. It could however be the vacuum actuator that switches the airflow from floor to vent to defrost.
Did you try applying vacuum to the HVAC vacuum line from the side of the intake to see if it holds vacuum?
Did you try applying vacuum to the HVAC vacuum line from the side of the intake to see if it holds vacuum?
#7
All I've done so far is pull the line from the intake and stick my finger on the intake line which is sucking like crazy. I've visually checked the lines but not back to vacuum reservoir or from there back to dash. I'll check those lines next.
I've read about trying to notice a hissing when diagnosing these problems, which I think I can hear above the noise of the engine. I think I might have dislodged something when doing the plugs and wires...?
Did you try applying vacuum to the HVAC vacuum line from the side of the intake to see if it holds vacuum?
many thanks!
Last edited by wilbo; 05-25-2010 at 11:41 AM.
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#8
Found it!
Looks like the thin black line from the T back into the dash got melted on something (probably close proximity to heater core lines).
My neighbour had some identical black vacuum line from his bike - product called Scottoiler if anyone can't any original.
thanks Alloro and Cgees
Wilbo
Looks like the thin black line from the T back into the dash got melted on something (probably close proximity to heater core lines).
My neighbour had some identical black vacuum line from his bike - product called Scottoiler if anyone can't any original.
thanks Alloro and Cgees
Wilbo
#9
help no airflow in defrost or floor vents
Guys
I can't seem to get any air through the dash vents. The blower is working and blows through the floor and windscreen (defrosher) vents. No matter what setting I have the vent lever (normal or bi-level, or any other), it never blows through the dash vents. I assume this is a mechanical control (what switches the air flow from floor/dash/defrosh vents)?
Any ideas what this might be??
thanks
kenny lester
Wilbo
I can't seem to get any air through the dash vents. The blower is working and blows through the floor and windscreen (defrosher) vents. No matter what setting I have the vent lever (normal or bi-level, or any other), it never blows through the dash vents. I assume this is a mechanical control (what switches the air flow from floor/dash/defrosh vents)?
Any ideas what this might be??
thanks
kenny lester
Wilbo
#10