Blowing warm air but only out of passenger side and floor, how can the blend door accessed? does the entire dash need to be removed?

 

Hi Elmer and welcome to the forum
There is a floor/panel door with a vacuum motor located near the throttle pedal. Maybe take a look and see if that looks like it's working.
To actually get at any of the blend doors I believe that you have to remove the whole dash.
Hopefully HomerWinzlow will be along soon with some more answers for you. He works on more heater/AC problems than I do.

 

Thanks racerguy, I'll check the vacuum motor out when i get off work today, i dread having to take apart the whole dash just to get to the doors.

In doing so,is there some way to deactivate the air bags?

 

Well since you said it is coming out the floor I am assuming you are using bilevel position. What is the performance like when running at MAX AC position? A low freon level can cause poor performance on the farthest vents fron the evaporator, expecially at idle or at stops.

 

Jusr remove a battery terminal for 5 minutes and they are safe....as long as you dont go probing air bag wires with an ohm meter or something

 

At max AC the two driver side panel vents are blowing cool not cold,all other vents floor as well as passenger panel vents are blowing hot, this problem started when the missus decided that it was too cold and adjusted the temp control ****. ac is not low on freon.
racerguy, the motor which you mentioned to the right of the gas pedal seems to work with the ac mode selector,that part functions ok.

 

WELL....I had the exact same problem you are having with my 1999 f150, bad news whole dash needs to come down order to fix it, problem is blend door front of the heater core is stuck and it is blocking cool air and letting hot air in and little plastic lever under the blend door is broken and there is no way to fix it you just need to buy new one,or do what I did and get it from junkyard.. ok good news is; ones you reach to blend door it only takes 2 minutes to fix it...but taking dash a part took me forever (I had some extra screws at the end)

arrgh be careful....
good luck

 

Well make sure the blend door controller itself isnt bad first. Id hate to see you pull the whole dash out just to replace a reasonably easy item to access. Ive even seen people tear into it all, and all that was wrong was a broken **** on the heater control.

 

The **** was the first thing i checked, how complex a job is removing the dash?

 

If equipped with power seats, move the seat fully rearward.
If equipped with adjustable pedal system, move the pedal to the full forward position.
If equipped with a manual transmission, place the transmission in second gear.
WARNING: To avoid accidental deployment and possible injury, the backup power supply must be depleted before repairing or installing any air bag system components. To deplete the backup power supply energy, disconnect the battery to starter relay cable and wait one minute.

Disconnect the battery cables. For additional information, refer to Section 414-01 .
Position the battery junction box (BJB) aside.
Release the mounting tabs.

Remove the bulkhead electrical connectors from inside the engine compartment.
Loosen the bolts.
Disconnect the bulkhead electrical connectors.

Remove the bulkhead electrical connector insulator.

Unclip the bulkhead electrical connectors from the dash panel.

Remove the lower instrument panel steering column cover. For additional information, refer to Instrument Panel—Steering Column Cover in this section.
If equipped, remove the valance panel.
Remove the two pin-type retainers and release the expander clip.

Disconnect the restraint control module (RCM) electrical connector.
Release the locking tab.
Disconnect the RCM electrical connector.
Release the wiring harness locators.

Disconnect the electronic blend door actuator electrical connector.
Release the wiring harness locators.

Disconnect the climate control head vacuum harness connector.

Remove the LH and RH front door scuff plates.

Position the LH and RH door weatherstrip seals aside.

Remove the LH and RH A-pillar lower trim panels.

If equipped, remove the alternative fuel control module (AFCM).
Disconnect the electrical connector.
NOTE: The AFCM is attached with Velcro®.

Remove the AFCM from the vehicle by pulling gently down and to the right.

Remove the LH and RH A-pillar passenger assist handles.
Remove the four screw covers and four screws.
Remove the LH and RH A-pillar passenger assist handles.

Remove the LH and RH windshield side garnish mouldings.

Disconnect the brake pedal position (BPP) switch electrical connector.
Release the wiring harness locators.

If equipped, disconnect the adjustable pedal motor electrical connector.

If equipped, disconnect the adjustable pedal motor harness electrical connector.

If equipped, disconnect the clutch pedal position (CPP) switch.

Remove the (A) audio unit ground and the (B) GEM/CTM ground bolts.

Disconnect the LH instrument panel main wiring harness connectors.
Release all the main wiring harness locators.

Remove the instrument panel steering column opening cover reinforcement.
Remove the nuts.
Remove the instrument panel steering column opening cover reinforcement.

Disconnect the (A) air bag sliding contact electrical connectors and the (B) anti-theft sensor electrical connector.

Disconnect the remaining electrical connectors on the steering column.

If equipped, disconnect the transmission range indicator from the steering column.
Remove the bolt.
Disconnect the cable.

Lower the steering column.
Remove the nuts.
Lower the steering column.

Remove the instrument panel bolts through the steering column opening.

Remove the instrument panel reinforcement bolt below the LH corner of the cigar lighter and power point.

Disconnect the inertia fuel shutoff switch electrical connector.

Remove the RH ground bolts.

Disconnect the RH instrument panel main harness connectors.
Release all the wiring harness locators from the cowl side panel.

Disconnect the climate control wiring harness connector.

Remove the audio unit. For additional information, refer to Section 415-01 .
Remove the antenna lead-in cable from the instrument panel.
Disconnect the three cable locators from the lower instrument panel channel.
Remove the antenna lead-in cable from the instrument panel.

Remove the instrument panel relay cover.
Remove the instrument panel relay cover.
If equipped, disconnect the autolamp sensor electrical connector.

Remove the glove compartment. For additional information, refer to Glove Compartment in this section.
WARNING: Always wear safety glasses when removing and handling an air bag.

WARNING: Carry a live air bag with the bag and trim cover pointed away from your body. An accidental deployment will then deploy with minimal chance of injury.

WARNING: Place a live air bag on a bench or other surface with the trim cover up.

Remove the passenger side air bag module.
Remove the screws.
Disconnect the electrical connector.
Remove the passenger side air bag module.

Remove the instrument panel bolts through the passenger side air bag module opening.

Remove the instrument panel bolt on the relay bracket.

Remove the instrument panel reinforcement bolt below the LH corner of the glove compartment.

NOTE: Position the carpet aside.

Loosen the instrument panel floor brace.
Remove the upper instrument panel floor brace bolt.
Loosen the instrument panel brace bolts and nut.

Remove the RH instrument panel cowl side nut.

Remove the LH instrument panel cowl side nut.

Remove the instrument panel cowl top bolts.
Remove the covers.
Remove the bolts.

NOTE: This step will require an assistant.

Remove the instrument panel.