Blower motor air flow control

Jlanning13
0

Asked by Jlanning13 Nov 17, 2012 at 03:16 AM about the 1999 Lexus RX 300 Base AWD

Question type: Maintenance & Repair

I replaced my blower motor controller today.  The air conditioner and heat is now blowing, but only from below where the feet vents are, there is no air flowing to the dash or vents by the windshield. I am unable to control the airflow.  I can control the air speed via the mode control knob, but not where it is going. I am unable to change the area to which it is to flow.  The arrows do change to different areas being the feet, chest, or windshield or both pertaining to the stick figure via the control knob showing where the air is to go, but it doesn't actually change levels or vents.  Also I see a site on the internet for a chip that is available to increase my gas mileage by 7 mpg's and slight increase in horsepower.  Is this true for the price of $65 per chip or will it cause issues with my fuel injection or other problems.

2 Answers

jwhalen70
590

Im not sure about how ur lexus is set up, but the vehicles i have worked on, all of the doors in ur heat system, are ran off vacumn controls, i had one that was not working like that, would only blow air from the floor, well it turned out that one of the vacumn tubes got pinched off under a bolt, from a different repair, so somewhere to start. Im not sure if thats possible with what you had to do to replace ur switch, but if u had a lot of bolts to remove or somehow lines are pinched, that could be ur issue. Good luck.

Sparky222
2,325

I helped a co-worker with her 99's climate system. This is elaborate mechanically, accessed behind the glove box. The mode servo (floor/vent/defrost/mix), is likely, since air direction is the issue here. Lexus does not use vacuum lines, but electronics and motors to open and close those air doors. The servos run over $100, and while the repair is not difficult, access is, and quite involved. A Toyota dealer can repair it, or Toyota independent specialist, and for way less than a Lexus dealer.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Air and heat won't blow 1 answer

    I was driving my 1999 Lexis 300RX one day and the air from the vents just stopped. Went over a bump and it started again. Finally shut off and has not come back on. If I have my temp control on air w...

    Lexus RX 300

    -

    Maintenance & Repair

  • Lately I've been hearing some sort of clinging that seems to come from one of my air vents 1 answer

    Lately I've been hearing some sort of clinging that seems to come from one of my air vents. It lasts anywhere from a few seconds to 10-15 minutes and then quits.

    2002 Lexus RX 300 Base

    -

    Maintenance & Repair

  • What causes my heat to stop working all of a sudden 1 answer

    It was working fine the day before...I go outside to cut it on the a/c button automatically cutscon even though I turned the dial all the way up to hot...my air conditioner works fine

    2000 Lexus RX 300 Base AWD

    -

    Maintenance & Repair

  • What and how to fix without get raped 8 answers

    VSC with check engine light on occurred simultaneously. Had codes checked at Advanced Auto: P0440 Evap Emissions Control System Malfunction P0441 Evap System Incorrect Purge Flow P0446 Evap VCenmt...

    2001 Lexus RX 300 Base AWD

    -

    Maintenance & Repair

  • my blower motor is not working at all 1 answer

    My blower motor is just not working

    1998 Lexus ES 300

    -

    Maintenance & Repair

Search Lexus RX 300 Questions

Lexus RX 300 Experts

#1 Rx300_21001
Rx300_21001
Reputation 1,180
#2 John Orlando
John Orlando
Reputation 660
#3 mrsvirtuous
mrsvirtuous
Reputation 390
View All

Related Models For Sale

Used Lexus ES 300"
37 Great Deals out of 1,041 listings starting at $2,499
Used Honda CR-V"
732 Great Deals out of 44,332 listings starting at $2,100
Used Toyota 4Runner"
311 Great Deals out of 9,741 listings starting at $1,795
Used Toyota RAV4"
658 Great Deals out of 28,699 listings starting at $1,000
Used BMW X5"
458 Great Deals out of 11,032 listings starting at $3,995
Used Toyota Camry"
1,494 Great Deals out of 78,360 listings starting at $1,200
Used Lexus GS 300"
46 Great Deals out of 744 listings starting at $2,995
Used Jeep Grand Cherokee"
1,305 Great Deals out of 54,175 listings starting at $1,500

Used Cars For Sale

1999 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 129 listings starting at $3,400
2000 Lexus RX 300 Base AWD For Sale
5 Great Deals out of 140 listings starting at $3,650
2001 Lexus RX 300 Base AWD For Sale
5 Great Deals out of 132 listings starting at $5,200
2002 Lexus RX 300 Base AWD For Sale
7 Great Deals out of 152 listings starting at $5,250
2003 Lexus RX 300 Base AWD For Sale
4 Great Deals out of 77 listings starting at $4,980