AC-Black Death 97 F250 LD - Ford Truck Enthusiasts Forums

Notices

AC-Black Death 97 F250 LD

Reply

 
 
 
  #1  
Old 08-15-2008, 07:02 PM
fordborn's Avatar
fordborn
fordborn is offline
Post Fiend
Thread Starter
Join Date: Jan 2004
Location: Maiden, NC
Posts: 6,594
fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.
AC-Black Death 97 F250 LD

Well looks like the AC had a case of the black death. I am getting ready to change the whole system from condenser to evaporator. Everything looks pretty easy except the evaporator. Anyone know what all has to be done to replace the evaporator? Does the whole dash have to come out or can you get to it from under the dash?
 
Reply With Quote
  #2  
Old 08-15-2008, 08:20 PM
torkum's Avatar
torkum
torkum is offline
Posting Guru
Join Date: Dec 2005
Location: Mount Juliet, TN
Posts: 1,550
torkum is gaining momentum as a positive member of FTE.
If the evaporator doesn't have a hole in it I would just flush it and change everything else.
 
Reply With Quote
  #3  
Old 08-15-2008, 09:06 PM
fordborn's Avatar
fordborn
fordborn is offline
Post Fiend
Thread Starter
Join Date: Jan 2004
Location: Maiden, NC
Posts: 6,594
fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.
Really no way to flush it properly after a Black Death situation that I know of. Better to just replace the complete system.
 
Reply With Quote
  #4  
Old 08-15-2008, 10:09 PM
lsrx101
lsrx101 is offline
Moderator
Join Date: Feb 2006
Location: Lorain County, Ohio
Posts: 1,775
lsrx101 has a very good reputation on FTE.lsrx101 has a very good reputation on FTE.lsrx101 has a very good reputation on FTE.
Originally Posted by fordborn View Post
Really no way to flush it properly after a Black Death situation that I know of. Better to just replace the complete system.
Not quite so. The recommended repair for a Black Death failure is a "firewall forward" replacement, everything "except" the evaporator. The evaporator is, luckily, not destroyed with this failure mode.
Because of it's location in the system and it's operating temp, the crud doesn't bond to the inside of the evaporator. Very little contamination actually reaches it, thanks to the screens on the orifice tube.
Of course, you can replace it for peace of mind, but it's not necessary. I "think" you can remove the evaporator case from under the hood. I really don't remember.

By the way, kudos for wanting to do the repair "right". Many folks would try and shortcut the repair by flushing and reusing certain parts. (It's "only" the AC, right?) That often leads to disappointment and wasted money. Black Death is really ugly.
Best of luck.
 
Reply With Quote
  #5  
Old 08-15-2008, 10:20 PM
fordborn's Avatar
fordborn
fordborn is offline
Post Fiend
Thread Starter
Join Date: Jan 2004
Location: Maiden, NC
Posts: 6,594
fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.fordborn has a great reputation on FTE.
Well I figure if I am into it this far might as well replace the whole setup. I have heard that you can possibly get by with a good flush of the evap but again I look at it and think that is is probably the hardest part to change. That being the case then might as well do it the first time and not take the chance it could contaminate the rest of the new system.

Be nice if I could take it out without removing the dash but most of what I have see calls for dash removal or at least pulling it away from the wall.
 
Reply With Quote
  #6  
Old 08-15-2008, 11:13 PM
lsrx101
lsrx101 is offline
Moderator
Join Date: Feb 2006
Location: Lorain County, Ohio
Posts: 1,775
lsrx101 has a very good reputation on FTE.lsrx101 has a very good reputation on FTE.lsrx101 has a very good reputation on FTE.
Originally Posted by fordborn View Post
Well I figure if I am into it this far might as well replace the whole setup. I have heard that you can possibly get by with a good flush of the evap but again I look at it and think that is is probably the hardest part to change. That being the case then might as well do it the first time and not take the chance it could contaminate the rest of the new system.

Be nice if I could take it out without removing the dash but most of what I have see calls for dash removal or at least pulling it away from the wall.
I like the way you think. "It's my truck, the part in question is the hardest part to get to, if I don't replace it I'll probably be sorry (Murphy's Law says so), so I might as well just do it and save myself some possible grief down the road".
I can relate. Mr. Murphy and I are twins that were separated at birth. I could write a book! Toms Law is "It WILL go wrong, so be prepared".

I've never had to replace an evaporator with a BD failure. If your truck is the "earlier', 96, 95, ..." body style, you can do it from under the hood, The "later", 98, 99, ..." trucks require removal of the instrument panel. I can never remember when the body style changed on the mid-late 90's trucks, but you should know what I mean.
Do a search for "Black Death" at Automotive AC Information Forum - ACKITS.COM. Most regular posters there are MVAC pros. Maybe even post your question there. They will most likely tell you to flush the evap. and leave it alone.
Like I said, there's good reason to replace the evaporator just for "peace of mind". If it's not a difficult job, it may be worth the effort just to know you did it.. If you have to pull the IP, you need to consider if you are being duly cautious or just overly fearful.

Tom
 
Reply With Quote
  #7  
Old 08-24-2008, 07:09 PM
HomerWinzlow's Avatar
HomerWinzlow
HomerWinzlow is offline
Postmaster
Join Date: Jul 2003
Location: Lawton, Oklahoma
Posts: 3,405
HomerWinzlow is gaining momentum as a positive member of FTE.HomerWinzlow is gaining momentum as a positive member of FTE.
Ive repaired hundreds of these systems and NEVER replaced the Evap and rarely replaced the condenser. I replace accumulator, compressor, orifice and flush 99 percent of the time and that works fine. If it has an inline muffler in the system that muffler may be clogged and you could replace that if the system is REAL bad. If factory warranty doesnt require replacing all components you can be pretty sure you dont need to. They dont like to replace components repeatedly either on their dime.
 
Reply With Quote
  #8  
Old 08-20-2016, 07:59 PM
Blockfort
Blockfort is offline
Freshman User
Join Date: Aug 2016
Posts: 31
Blockfort is starting off with a positive reputation.
I've got a 96 f250 with the same problem. What parts do I actually flush? Just the removable lines?
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vacuumbed
1968-2013 Full Size Vans
51
05-13-2018 10:44 PM
hink10
2011 & Newer Explorer
1
07-21-2017 07:44 AM
centrix
1987 - 1996 F150 & Larger F-Series Trucks
3
08-31-2016 01:38 PM
jwright
Cooling, Heating, Ventilation & A/C
0
06-09-2016 03:02 PM
kjvannatta
1999 to 2016 Super Duty
0
03-04-2016 01:24 PM


Thread Tools
Search this Thread
Quick Reply: AC-Black Death 97 F250 LD


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.