AC Refrigerant Booster Testing
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
I recommend changing to a 38639 orifice tube and removing and cleaning the evaporator core while system is discharged. The heater core supply shut off valve is also highly recommended.
More Turbo
Joined: Sep 2018
Posts: 545
Likes: 213
From: UT
I already bought the shutoff valve.....I can do that myself though. I put the Dieselsite version on my old Excursion....wasnt too impressed with that one, and didnt like that it had to be on Max to work.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,360
Likes: 5,960
From: Lake Hartwell, GA
Will do...I have no idea what that is, but I will look into it since I am taking it in to a shop for that.
I already bought the shutoff valve.....I can do that myself though. I put the Dieselsite version on my old Excursion....wasnt too impressed with that one, and didnt like that it had to be on Max to work.
I already bought the shutoff valve.....I can do that myself though. I put the Dieselsite version on my old Excursion....wasnt too impressed with that one, and didnt like that it had to be on Max to work.
The evaporator coil/core can be cleaned easily by following the video I made and pasted below. Other FTE'rs (credit given in the video) were before me, but I felt a video would be better suited for following along.
Just so we are clear, I have monetization turned OFF on all of my videos. Although, a new YouTube policy allows them to insert ads for their own profit as they see fit.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
I close my manual valve in late spring when I stop using HEAT and open it on the first fall morning when I’m chilly. It’s not any more effort than checking the oil.
Thread Starter
|
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,148
Likes: 4,736
From: Henderson, NV
I have not done anything to my AC system since injecting CoolShot in August 2019 and it still cools very well.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Fords to Drive Before You Die
Joe Kucinski
3 Best / Worst Features Of The 2025+ Ford Expedition
Brett Foote
10 Ways Ford is LOSING to the Competition
Joe Kucinski
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
Hotshot
Joined: Dec 2005
Posts: 10,258
Likes: 7,697
From: Chino Valley, Arizona
on my '97 I am pretty sure my evap is clogged with lint, dust leaves and what ever else can get in there as high on the fan feels like medium or low, but dang it is cold.
on my 2000 excursion huge difference cooling that monster.
haven't driven my parents '97 since the new compressor and the cold shot but my mom says it gets too cold.
haven't done the 2019 F450 yet, was waiting to get some miles on the others for my own sanity of weather it works or not or if it grenades the system. probably put it in this year when I see the box on my shelf and remember to do it.
on my 2000 excursion huge difference cooling that monster.
haven't driven my parents '97 since the new compressor and the cold shot but my mom says it gets too cold.
haven't done the 2019 F450 yet, was waiting to get some miles on the others for my own sanity of weather it works or not or if it grenades the system. probably put it in this year when I see the box on my shelf and remember to do it.
Hotshot
Joined: Dec 2005
Posts: 10,258
Likes: 7,697
From: Chino Valley, Arizona
there might be a few guys here on this thread that still have some. I would wait a few days to order it! someone might hook you up.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
I have a couple left from bulk order. Will share the discount I got for anyone wanting some of this.