Fan Speed And Air Flow

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

Post Reply
Oka
Posts: 196
Joined: Tue Mar 05, 2013 7:35 am
Year and Model: XC70, 2001
Location: Anchorage, Alaska

Fan Speed And Air Flow

Post by Oka »

Brown Volvo 2001 XC70
Normally, I set the fan on the third or the fourth green LED
for 'good' temperature and 'enough' air flow.

Red Volvo 2001 XC70
- At the third or fourth green LED, the noise at the heat core is as louder
than the brown Volvo at full blast.
- At full blast, the air flow is as low as the brown Volvo at second LED.

So it looks like the red Volvo is working much harder to produce air flow and temperature.
2001 Volvo XC70/AWD/Auto/Turbo/146kMiles (Brown)
2001 Volvo V70XC/AWD/Auto/Turbo/144kMiles (Maroon)
2006 Toyota Sienna LE/AWD 93K (Green)
--------------------------------------------------------------------------------------
1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)
2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Parked since 2017)

jimmy57
Posts: 6674
Joined: Fri Nov 12, 2010 9:25 am
Year and Model: 2004 V70R GT, et al
Location: Ponder Texas
Has thanked: 4 times
Been thanked: 276 times

Post by jimmy57 »

Have you looked at the air filter for the a/c-heat system? (usually referred to as the cabin filter)

User avatar
oragex
Posts: 5253
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 102 times
Been thanked: 325 times
Contact:

Post by oragex »

Also, there may be a flap door that doesn't open properly- broken hinge, burnt motor or simply a CCM calibration

User avatar
abscate
MVS Moderator
Posts: 24161
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 462 times
Been thanked: 1370 times

Post by abscate »

There are also two different air filters for the P2 cars, thick and thin.

The ECC control unit will give different flows depending on how it is programmed, too.

Jim commented here when I replaced my filter

viewtopic.php?f=9&t=70538&hilit=2005+ca ... 0&start=10
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

Oka
Posts: 196
Joined: Tue Mar 05, 2013 7:35 am
Year and Model: XC70, 2001
Location: Anchorage, Alaska

Post by Oka »

The gotcha here is the word 'filter'. Then it clicked it did not come to mind.
Started driving the care a few months ago. Very logical to think about my issues could be a result of the "working much harder" scenario to relate to the filter. As soon as I could, I went to the car just to take a pick underneath the glove compartment. Was shocked! First, the panel underneath the filter housing was missing. Found the panel inside the box the previous owner had given me.

Looking closer, I found the filter housing cover was half way opened I could see the filter. I supposed to have four screws. The first two were completely missing. The other two further back has the left one almost half way out; the obvious reason I mentioned "the noise at the heater core is louder . . .".

There are more. The filter housing has two compartments. Shouldn't the filter be in the first compartment, the one closest to you? This filter was in the further compartment. When I removed it, saw lots of debris clogging the filter. Dirt was literally falling out of the compartment while I was trying to pull it out. I managed to remove it, vacuumed the compartment, put the cover back just to test it. Wow, at the second/third LED fan speed setting, the air was just gushing through the dash vents, of course without a filter.

Really appreciate everyone's input on some possibilities.
2001 Volvo XC70/AWD/Auto/Turbo/146kMiles (Brown)
2001 Volvo V70XC/AWD/Auto/Turbo/144kMiles (Maroon)
2006 Toyota Sienna LE/AWD 93K (Green)
--------------------------------------------------------------------------------------
1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)
2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Parked since 2017)

User avatar
abscate
MVS Moderator
Posts: 24161
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 462 times
Been thanked: 1370 times

Post by abscate »

The two slots are explained inthe thread above...P2s have a choice of filter
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

Post Reply
  • Similar Topics
    Replies
    Views
    Last post