rear a/c warm
Thread Starter
|
New User
Joined: Jul 2011
Posts: 12
Likes: 0
rear a/c warm
2005 X limited, 84000 miles V10. bought the X a month or so ago for $18,000 OTD. everything is beautiful except that the rear A/C is warm. i work in commercial refrigeration so i should be able to handle the repairs myself, but i dont know how the system is designed to work. is there a solenoid in the line-set leading to the rear vents and if so, where is it hidden? i havent even begun to try to diagnose anything yet; i want to get the system specifics first.
thanks,
thanks,
Elder User
Joined: Dec 2006
Posts: 762
Likes: 7
= = =
Your honesty MAY get you on the right track = Late news flash. Your FORD/s A/C system has little relationship to the typical commercial system!
It is a computer-controlled NIGHTMARE. During assembly, when the truck was wired, there is a bunch of wires underneath the right-hand rear window revel, that often has one or more "shorts" or "breaks" in it. You can start there.
If that dosnt disclose something obvious, STRONGLY recommend you find a COMPETENT Ford dealer and take it there. The system is not for the ordinary refrig. tech. (been there...done that....!)
Elder User
Joined: Sep 2009
Posts: 514
Likes: 2
A few people have had sucess replacing the TXV.
http://www.techchoiceparts.com/ShowI...#ItemNotes1Div
http://www.techchoiceparts.com/ShowI...#ItemNotes1Div
Senior User
Joined: Jan 2009
Posts: 185
Likes: 0
From: Greencastle, PA
in the rear a/c is an expansion valve that sticks. that is your problem, an inexpensivce fix. check it out. i just had thge same thing. my compressor took a crap. replaced and they blew out the front lines but not the rear. 2 weeks later rear quit. was ewxpansion valve. now I have another problem. requires a question to all..
Thread Starter
|
New User
Joined: Jul 2011
Posts: 12
Likes: 0
thanks for all the responses. is there anything available online showing me the location of all the components at least?
6686L,
if i associate an unfamiliarity of system specifics with inability to repair equipment i would have been out of business looong ago. theres nothing complicated about it once you have the system specs, and over the years ive found that it will never get repaired if you dont start turning wrenches. besides, i would just feel dirty paying someone else to do what i do. ;-)
6686L,
if i associate an unfamiliarity of system specifics with inability to repair equipment i would have been out of business looong ago. theres nothing complicated about it once you have the system specs, and over the years ive found that it will never get repaired if you dont start turning wrenches. besides, i would just feel dirty paying someone else to do what i do. ;-)
Fleet Owner
Joined: Dec 2006
Posts: 20,634
Likes: 37
From: Lost in Pa.
thanks for all the responses. is there anything available online showing me the location of all the components at least?
6686L,
if i associate an unfamiliarity of system specifics with inability to repair equipment i would have been out of business looong ago. theres nothing complicated about it once you have the system specs, and over the years ive found that it will never get repaired if you dont start turning wrenches. besides, i would just feel dirty paying someone else to do what i do. ;-)
6686L,
if i associate an unfamiliarity of system specifics with inability to repair equipment i would have been out of business looong ago. theres nothing complicated about it once you have the system specs, and over the years ive found that it will never get repaired if you dont start turning wrenches. besides, i would just feel dirty paying someone else to do what i do. ;-)
BTW, I've worked on cascade refrigeration systems for over 20 years and know nothing is more basic than an AC system.
Senior User
Joined: Oct 2010
Posts: 173
Likes: 2
From: Jackson, MS
Just replaced the expansion valve in mine and mine works Great! It is in the right rear panel behind the jack.
Trending Topics
Senior User
Joined: Nov 2008
Posts: 319
Likes: 2
From: near mm217 off I-70 in MO
Amen to that!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
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
Fleet Mechanic
Joined: Oct 2010
Posts: 1,407
Likes: 155
From: Milwaukee, WI
The expansion valve is behind the jack door compartment. You have to pull the rear passenger panel enough to remove the black plastic compartment. It is right behind there, brass in color with two lines in and two lines out. Torque the lines to 15ftlbs. when you reinstall.
I believe the black plastic jack compartment is held in with one plastic rivet near the top front.
To get to it,
1) Pull out the rear seat.
2) Unscrew the floor mounting plate for the rear passenger seat belt (large torx bit)
3) Remove passenger panel from the rear.
(At this point, you should only have to peel the large rear panel away by about a foot if you are willing to work in a tight space, otherwise, remove the whole side panel.)
4) Remove plastic rivet and jack compartment
Napa and Orielley both list the part as order in...unless you have an Napa warehouse nearby. Rockauto has the valve the cheapest.
I believe the black plastic jack compartment is held in with one plastic rivet near the top front.
To get to it,
1) Pull out the rear seat.
2) Unscrew the floor mounting plate for the rear passenger seat belt (large torx bit)
3) Remove passenger panel from the rear.
(At this point, you should only have to peel the large rear panel away by about a foot if you are willing to work in a tight space, otherwise, remove the whole side panel.)
4) Remove plastic rivet and jack compartment
Napa and Orielley both list the part as order in...unless you have an Napa warehouse nearby. Rockauto has the valve the cheapest.
Elder User
Joined: Dec 2006
Posts: 762
Likes: 7
[quote=MontanaBighorn;10565740] . . . . . theres nothing complicated about it once you have the system specs, . . . .
THAT'S THE PROBLEM. WHILE BASIC REFRIGERATION ISSUES CAN BE EASY TO REPAIR.....WITHOUT THE SPECS. AND ACCESS TO THE 'PROPRIETORY' PARTS...WELL.....!
i would just feel dirty paying someone else to do what i do. ;-)
BE ASSURED I KNOW THAT FEELING. I HAVE TWISTED A WRENCH OR TWO OVER THE YEARS MYSELF. (AND I TRULY HATE IT WHEN I RUN ACROSS A SYSTEM OBVIOUSLY DELIBERATELY DESIGNED TO TRY AND FORCE YOU TO GO TO A MFG'S REP / DEALER....!
Do you remembe a line from a Clint Eastwood movie..." MAN'S GOT TO KNOW HIS LIMITATIONS".....!
THAT'S THE PROBLEM. WHILE BASIC REFRIGERATION ISSUES CAN BE EASY TO REPAIR.....WITHOUT THE SPECS. AND ACCESS TO THE 'PROPRIETORY' PARTS...WELL.....!
i would just feel dirty paying someone else to do what i do. ;-)
BE ASSURED I KNOW THAT FEELING. I HAVE TWISTED A WRENCH OR TWO OVER THE YEARS MYSELF. (AND I TRULY HATE IT WHEN I RUN ACROSS A SYSTEM OBVIOUSLY DELIBERATELY DESIGNED TO TRY AND FORCE YOU TO GO TO A MFG'S REP / DEALER....!
Do you remembe a line from a Clint Eastwood movie..." MAN'S GOT TO KNOW HIS LIMITATIONS".....!
Senior User
Joined: Nov 2008
Posts: 319
Likes: 2
From: near mm217 off I-70 in MO
I think what MontanaBighorn is getting at is the A/C system on the excursion is a basic system, nothing special. The controls are the hard part. We field repair guys have to have the attitude we can and will fix anything, if we come across a new system, building, customer we have not seen before we cannot shy away from it just because of proprietary parts or controls. A human put it together and a human can figure it out.
Automotive A/C is less complicated then many items I or any other tech on this forum has probably experienced. Taking time to figure out Ford's system controls may be a hindrance but will be overcome.
Cheers
Automotive A/C is less complicated then many items I or any other tech on this forum has probably experienced. Taking time to figure out Ford's system controls may be a hindrance but will be overcome.
Cheers
Posting Guru
Joined: Oct 2003
Posts: 1,198
Likes: 2
From: Tulsa, OK
Before you open up the R134 system to put in the new expansion valve, make 100% sure that the electric blend door motor is working. This relatively simple part was the reason that my rear heater quit working. Maybe your problem is the opposite(?) Maybe the blend door is "stuck" giving you heater core air in large enough quantity to make you think A/C is not working(?)
This motor and blend door will be readily visible once you remove the passenger side rear panel.
On another level, you may also want to "feel" the refrigerant lines coming to/from the rear evaporator. If the exiting line is cold, then the expansion valve may be OK.
This motor and blend door will be readily visible once you remove the passenger side rear panel.
On another level, you may also want to "feel" the refrigerant lines coming to/from the rear evaporator. If the exiting line is cold, then the expansion valve may be OK.
Thread Starter
|
New User
Joined: Jul 2011
Posts: 12
Likes: 0
...can anybody tell me if the OEM part has been redesigned to prevent this apparently known issue? if it has been redesigned i will go with an OEM TXV, but i dont want to replace a known failure with the same old known failure.
thanks!
Thread Starter
|
New User
Joined: Jul 2011
Posts: 12
Likes: 0
thanks for the information. i picked up a TXV at napa for $48, and it only took about an hour to change out. the only difficult part about it is getting the flare fittings tight in the limited space. rear A/C cooling great now!
