Fordmods Logo

Air con not working in EBII - how to diagnose 

 

Page 1 of 1 [ 6 posts ] 

 
 Post subject: Air con not working in EBII - how to diagnose
Posted: Sun Jan 06, 2008 12:48 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 11103

Joined: 15th Nov 2004

Ride: AU III XR8 Pursuit 250 ute

Location: Hobart
TAS, Australia

Got an EBII Fairmont with the automatic climate control. 2 days ago the air conditioning died. There's been a hissing noise coming from the dash on the passenger side for some time (if I remember correct) and it's still there (even though the air con is not functioning properly). If I turn the A/C off on the climate control (i.e. so just the fan is running) the noise goies away - so it is directly related to the air con running.
Any ideas?
When I say not running I mean the climate control says AC is on, but the air isn't cold. AFAIK the air con has not been regassed in the past 10 years.

 

_________________

Heaps of performance EF/L parts for sale, including supercharged VCT motor!

2002 Ford AU Series III Falcon XR8 Pursuit 250 ute - 5.6L of V8 Windsor!

Top
 Profile  
 
 
Posted: Sun Jan 06, 2008 1:51 pm 
Fordmods Junkie
Offline
User avatar

Age: 38

Posts: 1000491

Joined: 6th Nov 2004

Gallery: 2 images

Ride: AUXR6 HP With Ducati SupA Bike!

Location: Perth
WA, Australia

well no gass could be a drama

also the aircon compressor clutch may not be engaging

 

_________________

RIP SCOTT

Top
 Profile  
 
 
Posted: Sun Jan 06, 2008 1:56 pm 
Stock as a Rock
Offline
User avatar

Age: 59

Posts: 103

Joined: 28th Apr 2007

Gallery: 5 images

Ride: EF11 Ghia EB11 Ghia Courier ute

Location: Bundaberg
QLD, Australia

have similar problem with my EB. the a/c bloke says it is more than likely the unit (evaporater/condemsor???) under the dash. I have had mine regassed and checked for leaks. The a/c guy could not find any leaks on the rest of the system but it lost its cold again within a month or so. he said the dash will have to come out to replace the faulty bit at around $600 all up
Top
 Profile  
 
 
Posted: Sun Jan 06, 2008 6:04 pm 
Technical Contributor
Offline
User avatar

Age: 53

Posts: 5587

Joined: 14th Jan 2005

Gallery: 10 images

Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

Run a self test, to make sure there are no errors, depending on the error the A/C won't engage.
If that's okay, set and run to maximum cool, then run monitor mode - the evaporator temp should be down in single figures. Make sure you can hear the compressor cutting in and out. If the evap temp doesn't change much, then it's most likely low refridgerant.

The above is all in the doco.

Sounds like you also have a vaccy leak - probably the junction connector behinfd the glovebox has come loose.

 

_________________

96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Top
 Profile  
 
 
Posted: Tue Jan 08, 2008 12:43 am 
Getting Side Ways
Offline

Age: 70

Posts: 657

Joined: 24th Sep 2007

Gallery: 10 images

Location: Central Coast
NSW, Australia

A quick check for gas level is to have the car running, aircon switched on and look in the sight glass on top of the receiver/dryer. Occasional bubbles mean low gas, no bubbles mean good gas OR no gas.
Check the latter by unscrewing the test cover nearby which will reveal a valve, push this in gently with a probe [do not have your face in the way]. If the system has gas it will jet out with a loud hiss and chill your fingers. Replace cap.
If there is no chilling or hissing you have no gas and a leaky system.
As Snap says, there's a doco about replacing all major aircon components and 'o' rings, my Holy Book ATM. Much professional 'leak finding', as per 'pop058', unfortunately often means checking only what they can see, which costs a bit if the leak is under the dash, as you will lose the gas again.
So best to check if you actually have enough refrigerant in the system FIRST, if you haven't the clutch won't engage anyhow.
Paul

 

_________________

What goes around, comes around.

Top
 Profile  
 
 
Posted: Tue Jan 08, 2008 9:53 am 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 11103

Joined: 15th Nov 2004

Ride: AU III XR8 Pursuit 250 ute

Location: Hobart
TAS, Australia

Thanks, I'll go through the doco - http://www.fordmods.com/forums/documents.php?doc=9

 

_________________

Heaps of performance EF/L parts for sale, including supercharged VCT motor!

2002 Ford AU Series III Falcon XR8 Pursuit 250 ute - 5.6L of V8 Windsor!

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 6 posts ] 

Who is online

Users browsing this forum: No registered users and 22 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 11, 2017 3:33 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names