Question about 1988 Volvo 240

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1992 240 Gl, Windshield air vent/defroster has almost no output

I've had this car ~1.5 months, first cold day I've had & tried to use the heater.

1. Turn Temperature Lever to Hot.
2. Turn Fan knob to 5(high)

Result = no output at all from the windshield vent

3. Turn the wheels to cut off air output from the dashboard vents.

Result = small amount of air pushes up on the right & left edges of the vent but none in the center.

4. Fiddle with directional buttons on heater controller panel.

Result = No change.

No odd sounds, Air is ~hot once the car has been warmed up for a little bit.

What do I look for to fix this? I live in Maine w/ a cold winter coming up & the I only demand 2 things in a car. WARMTH and cruise control :)

-Help
-Rob

Posted by on

  • gwinnibarge Nov 13, 2008

    My problems are identical to those described above for my 1990 240. I have checked the vaccuum line from the top of the intake manifold to the air control unit and it seems ok (it holds a vacuum). There is a filter at the intake manifold at the beginning of the vacuum line. Perhaps this needs changing?



    Perhaps the door is stuck? If so, how to lubricate/fix it. Thanks!!



    POG

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Wow...here it is spring and no one answered either of you? Is there a large volume of air when fan is on high? Where is it going? Or do you not hear anything from the fan? The 240 has an awesome heater. On high it would heat a small home! If no sound, your blower motor is dead assuming the fuse is good. If you hear the fan blowing, figure out where the air IS going. Note that the only way to turn the dash vents off is with the white Oreo dials. To defrost, only that button should be pressed in and dash vents off. Behind the dash switches there is a maze of short vacuum hoses. Often times, people monkey w/ these and reconnect them incorrectly. Haynes manual or Chilton's have proper diagrams. It could be that the vacuum hose coming from the manifold and entering the firewall is split on the under side and not visible, also.

Posted on Apr 21, 2009

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