This is a discussion on How to mod AC to blow COLDER within the F150 Ecoboost Guides and How-Tos forums, part of the F150 Ecoboost Garage category; Originally Posted by Ducatti20 That's why you have to measure the vent temps.... testing with the Ford diagnostic software showed the pcm cycling the compressor ...
2013 F-150 Ecoboost Lariat Crew Cab 6.5' bed, 4X4 3.73 gears and Fox shox on all four corners, Stainless works catback, Airaid CAI and 5 Star perf/tow tune. November 2014 truck of the month
Build Thread. https://www.f150ecoboost.net/forum/10...-predator.html
I'm looking into this mod. My AC is lackluster at best. I've never been impressed with it 'cept for when I turn it on and it's 78° outside.
It does indeed seem like the compressor shuts off too quickly.
2014 SCREW Green Gem XLT Plus
3.55 E-lock - OE HID - Heated Adobe Leather - OffRoad Package - AutoSpring 2.5/1 Kit
DiabloSport 91 Oct Tune - Stubby - Morimoto LED Fogs - LED Backup Lights - ATP CAC
Enkei M5 20x8.5 30mm - Michelin Defender LTX MS2 275/65R20
I've glanced over those threads once or twice but never got the time to go through it in detail.
Cant wait to try this along with insulating the few exposed AC lines under the hood.
2014 FX4 screw, max tow, 3.73, 402a, 5.5', Unleashed 91 & 93, Wagner CAC, solo res DP's, DO water meth inj, Helwig RSB, Bilstein 5100's, 275/60/20 Duratracs, Blizzak DMV2's (winter)
Thank you for the write up. Will be done by day's end. Gettin hot in heeer
RMB Motor Works
I too was not satisfied with the A/C in my truck. Installed a 330K resistor. Vent temp before mod was 43F after 36.5F Outside temp was 84F(parked in driveway). Fan was on #2, recirc was off and max air was off. Will try for a couple of days (supposed to get hotter). Thanks OP for the write up. Used link to find out how to remove the plug from the top of the air box(white tab on bottom, who knew!).
2011 Supercrew Ecoboost FX2. Natural Gas Dual Fuel.
I live in Houston so its 95+ outside right now and very high humidity. I added a 1M resistor to prevent the box from freezing and to ensure the compressor would cycle. I made a 750k resistor and the temps got too low, around 40*, this is too low if it is humid in your area... I went from 51* to 42-44 with the 1M and haven't encountered any issues...
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2013 F150 Screw Lariat
Forged Pistons, Rods, Studded heads, BW Turbos, FR CAC, Rad, CAI, CC, DP's, Exhaust, Hand ported exhaust manifolds, meth
Check out my build thread!
Thanks for taking the multiple AC threads (especially the one with a billion pages) and condensing it to a single post. It really helps with sifting out the unnecessary info.
I think it might be a good idea to mention that people should check their Freon levels before attempting this hack. That could be their initial problem.
Last edited by Badtziscool; 07-23-2015 at 12:46 PM.