F-150 A/C Diagnosis & Cycling Switch Replacement

Here is a quick A/C run-through on my 1997 F-150. We have more videos coming soon on this truck. Thanks for tuning in to DoWitt Garage!

[@TCSO1757]

Thank you for the video had the exact same issue and was able to fix it myself. 🙂

[@DoWittGarage]

Awesome, thank you for watching!

[@MasonDenny-w9q]

What does it mean if I’m not getting the 12 volts to the high side? Does that mean I need a new computer?

[@DoWittGarage]

I’d say either that, or a bad switch in the dash. Be sure and check fuses as well.

[@felixmercado9467]

having the same issue replaced my compressor and it just keeps blowing my 10am fuse ( A/C clutch) i’m not sure why

[@overpoweredrc27]

So my 06 f150 has an entire new ac system ive replaced everything but the evaporator core. I vaccumed down the system for 45 minutes filled with r134a the ac does work but its not right its doing the same thing it always has. You start the truck and the ac is kinda cool you start driving and boom ac is amazing then it will idle with cold ac shut off truck start again ac is just cool again. Hook up gauges and during idle im getting 370psi high side and 45 psi low. If i leave it idling and rev engine while blowing air across the condensor to simulate driving it will randomly drop high side from 370psi down to 220 psi and its works perfect what the hell is going on im stumped

[@Rated_Gnar]

Would this be a problem when a compressor kicks on for 3 sec, shuts off, kicks back on in 15 sec for another 3 sec, shuts off, and continues this cycle? I just replaced my ac system because of this and it's still doing this. Now getting into electrical stuff.

[@DoWittGarage]

Have you checked your refrigerant level?

[@martingomez4216]

Did you figure it out?

[@gaugehoughton2403]

What gauge did you use to measure the pressure?

[@DoWittGarage]

It’s just a standard gauge like you’d see at a parts store that comes packaged with a can of refrigerant.

[@martingomez4216]

Do you know why my ac line is cold but still blows warm air? 1998 f150

[@DoWittGarage]

Have you checked your blend door? I had to replace mine a few years ago. They’re $25 for a kit. Mine was blowing warm air all the time prior to the fix.

[@wormleycreek61]

Thank you! Exactly what I needed to fix my '01 5.4L A/C compressor problem