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AC issues in Texas heat

Discussion in 'Ford F-150 Raptor General Discussions [GEN 2]' started by bstory321, Aug 16, 2020.

  1. BenBB

    BenBB Full Access Member

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    @1BAD454SSv2 Check your evaporator. My '13 never cooled well, the previous owner apparently didn't know to use recirc when eating dust. Also search for thread about resistor mod on here. I did the resistor mod, wrapped the lines under the hood with insulation, recharged and then overcharged the R134a, and replaced the heater resistor (well it's not a resistor anymore it's solid state but does the same thing), nothing helped, barely blew cold air out of the vents. I pulled the blower motor and shoved my phone up in the heater box and found this on the intake side of the evaporator:
    IMG_0157.JPEG
    Pulled that heater resistor and got another shot:
    IMG_0158.JPEG
    Let this be a lesson to you all, use your recirc kids. Instead of replacing the evaporator/TXV/condensor, and since they apparently built the entire goddamn truck around the heater box (6-8 hour job, whole dash, umm no), I spent a couple hours scrubbing it with Simple Green, various cleaning brushes I swiped from my wife, blowing out with compressed air and a shop vac, and finally backflushed with a garden hose (as a bonus, I now know the condensate drain works), got about 90% cleaner:
    IMG_0172.JPEG
    Now it blows frosty air, easily 400% improvement. No exaggeration, went from struggling to get under 60° out of the vents to under 40° and air speed quadrupled.

    Gen2 guys I hope you find the culprit, I would definitely replace the cab air filter (wish mine had one!!!), use recirc, sunshades, etc. as others have suggested, all will help but ultimately some of these issues sound electronic, unless an evaporator issue like mine was heh. All the sensors, dual zones, and computers aren't letting the simple refrigeration system operate to capacity, or only sometimes...
     
  2. DanT

    DanT FRF Supporting Member Supporting Member

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    AC in my 2020 Raptor SCREW works too good - I’m constantly turning the fan down as I’m freezing in Auto mode at 70°
     
  3. wheelman55

    wheelman55 Full Access Member

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    Try using a lower fan speed. That’s worked for me in other vehicles. The cabin gets cooler for me using a lower fan speed. My theory is that the higher speed doesn’t allow the condenser to get cold enough. The heat shield in the windshield makes a huge difference. Good luck...
     
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  4. MattR

    MattR Full Access Member

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    I did ceramic tint on all of the windows, windshield, and moonroof. It helped quite a bit, but the truck is black and it's hard to overcome the heat load produced by the sun in the South. I also believe that part of the issue is the space of the cab...it's a large, fairly un-insulated black metal box with interior ambient temps over 140deg. It takes quite a bit of air, even at 45deg, to cool that down to a comfortable 70deg.

    I'm glad that Ford offers the FordPass app, as starting it up 10min or so before getting in it helps quite a bit. The cooled seats help a ton, too.
     
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  5. 1BAD454SSv2

    1BAD454SSv2 Full Access Member

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    Not saying mine is not plugged i will be checking this weekend . I have always used recirc on truck since brand new. ac has never really been that great since new it was always at 50 but would hold 50 at idle. If it is dirty I will be using foaming cleaner for evaporators. Really not looking forward to tearing into a condensor in this weather. But if evap is clean that is next item. By way i have correct amount freon and pressures seem low thats why suspect condensor
     
    BenBB likes this.
  6. sixshooter_45

    sixshooter_45 Ruby Red Metallic Supercrew, 3.5 L Twin Turbos.

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    States it doesn't fit my 2019 F150?
     
  7. WH7

    WH7 Full Access Member

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    2018 and I'm also in Texas. Mine blows really cold and cools that black on black down quick.
     
  8. 970rap

    970rap Member

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    My 18 blows plenty cool at the coldest settings but when using auto mode on a hot day it doesn't seem to pump out enough air to keep it at the set temp. To feel like it's 70 inside I have to turn down to 66-68 depending on how sunny it is. This is exacerbated with people in the back seat, since the rear air vents provide nearly no flow unless one or more of the front vents is closed.
     
  9. smurfslayer

    smurfslayer Be vewwy, vewwy quiet. We’re hunting sasquatch77

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    Legit. I couldn’t believe I had to pay Raptor Tax prices for a stinking sun visor. I mean, who makes this, Baja Designs? :p

    But, I bit the financial bullet and bought it. It makes a huge diff. No tint (yet), so that may also help.

    Yup. a pre-start takes the edge off and gets you cooler faster.
     
  10. greatone99

    greatone99 Full Access Member

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    a dirty evap will give u less air ,but ir would be colder ,a dirty evaporations does not cause warmer air
     

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