Refrigerant Capacity?
Thread Starter
|
Posting Guru
Joined: Apr 2012
Posts: 1,693
Likes: 3
From: Menifee, CA
Refrigerant Capacity?
1994 F-350 7.5L. I know the sticker under the hood calls for 33oz of refrigerant but if I'm not mistaken I recall a Ford service bulletin updating that amount to 38oz. I know the 96 and 97 models get that amount. Can anyone confirm?
Logistics Pro
Joined: Mar 2005
Posts: 4,698
Likes: 47
From: Mexico, Missouri
I can't confirm that amount, but I can provide you this.
On a '94, it takes 33 ounces, with a maximum oil charge of 7 ounces. On a '95, it shows 38 ounces of R134a and 11 ounces maximum oil charge.
Maybe someone else can provide details on why (2) F150's with 351's are different 1 year apart.
On a '94, it takes 33 ounces, with a maximum oil charge of 7 ounces. On a '95, it shows 38 ounces of R134a and 11 ounces maximum oil charge.
Maybe someone else can provide details on why (2) F150's with 351's are different 1 year apart.
Thread Starter
|
Posting Guru
Joined: Apr 2012
Posts: 1,693
Likes: 3
From: Menifee, CA
The compressor model for my truck went to 95' in 96 and 97 they had a different model compressor. Maybe the compressor can hold more refrigerant inside it during compression charge.
Post Fiend
Joined: Apr 2004
Posts: 6,473
Likes: 4
From: Lafayette, IN
R-12 has a greater cooling capacity than R-134a. That's why the increase in coolant charge with R-134a--it's needed to achieve the same amount of cooling for the same cabin volume. The vehicles were required to be produced with R-134a (really, something other than R-12) in about 1994.
Jason
Jason
Thread Starter
|
Posting Guru
Joined: Apr 2012
Posts: 1,693
Likes: 3
From: Menifee, CA
Like I said, there was a TSB somewhere that said the increased capacity was 38oz. Maybe its after Ford dealt with the "Black Death" issue they found the systems were generally all undercharged causing a starving compressor.
i ain't rite
Joined: Mar 2005
Posts: 65,481
Likes: 5,542
From: Marlboro Mental Hospital.
R-12 has a greater cooling capacity than R-134a. That's why the increase in coolant charge with R-134a--it's needed to achieve the same amount of cooling for the same cabin volume. The vehicles were required to be produced with R-134a (really, something other than R-12) in about 1994.
Jason
Jason
by 94 model year, everything was R134-A
Trending Topics
Post Fiend
Joined: Apr 2004
Posts: 6,473
Likes: 4
From: Lafayette, IN
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Thread Starter
|
Posting Guru
Joined: Apr 2012
Posts: 1,693
Likes: 3
From: Menifee, CA
I have the feeling that Ford realized they were under charging their systems an increased the specified amount of refrigerant accordingly. So I just charged up my system with 38 ounces and it blows an ice cold 40 degrees at the duct.
Thread
Thread Starter
Forum
Replies
Last Post
tsbrewers
1968-Present E-Series Van/Cutaway/Chassis
8
May 22, 2012 07:29 AM
krewzn_along
1997 - 2006 Expedition & Navigator
1
Jan 12, 2006 12:16 PM