2003 6.0 excursion A/C problems
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2003 6.0 excursion A/C problems
Ok i have a 03 excursion and the ac is not blowing cold. It has a new compressor/dryer/orfice and expansion valve and new condenser It does have the air to oil cooler but this problem was there before that. Does have a new radiator as well and fan clutch also tried the 7.3 fan clutch with no help. Low side pressure holds at 60 and high 275 to 325 and maybe 65 on a good day out vent. also have heater lines blocked off as well. What is next as im am stuck
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you could try an electric pusher fan in front of the condenser coil it lowered my vent temp 8 to 10 degrees. make sure the condenser coil is clean of bugs and mud too. mine would blow hot sitting in traffic but now i just flip on the fan and good to go. How much 134a is in the system the low side numbers are a little high depending on coil temps. too much refrigerant is as bad or worse than not enough.
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So the updated condenser is smaller than original? If this the case that could be your problem I just installed a new one last week nd it was same size as old one system blowing at 45 degrees in Phoenix. The coil has to big enough to remove cabin and compressor heat from system. If I was you I would do some home work on the updated coil. Is this a dual a/c system s far as front and back a/c evap?
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Ok where did you get yours at? The look almost the same but it's Ford's update and they said that's the new one for it. I have an or one and it did the same thing. I'm here in Phoenix az well off of 35th and northern ave
Fleet Mechanic
Joined: May 2010
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From: West by God Virginyuh
Excursion with rear AC should have 1.93kg, or 4.246lbs, of refrigerant. I was just dealing with this (I needed a new compressor) and there was nothing in condenser info about reduced refrigerant charge
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Tuned
Joined: Jul 2007
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From: Barbourville Ky
Now I know what to do to mine,,blows very cold unless I'm sitting still,then not so good,Think I'll give this a try
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One more thing to check make sure your blend door that brings fresh air into the cab is closing all way. You can have the 40 degree evap but if it is sucking out air at 120. I have seen this on a few trucks here in az
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blend door is closed all the way had front of box off to check and make sure door wasnt broken. also the also fresh air to cabin air door is working as i can push the rod up and hear the difference in air flow and feel it at same time.
Fleet Mechanic
Joined: Feb 2007
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From: Mooresville, NC
For this Excursion (in ounces)
w/ Front AC it's 42 + 9 PAG46
w/Front and Rear AC it's 68 + 14 PAG46
Has anyone used dye in it ?(tends to collect inside the evaporator -- can't tell you the number of ounces of that crap I've drained out of customer vehicles)................and did you evac, clean, vac down, etc before loading it up with refrig R134a?
Was a scale used for the refrigerant?
w/ Front AC it's 42 + 9 PAG46
w/Front and Rear AC it's 68 + 14 PAG46
Has anyone used dye in it ?(tends to collect inside the evaporator -- can't tell you the number of ounces of that crap I've drained out of customer vehicles)................and did you evac, clean, vac down, etc before loading it up with refrig R134a?
Was a scale used for the refrigerant?
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The new condenser has a replacement sticker . Just bought another one. This one from Ford per vin of the excursion.
Excursion (w/ Rear A/C ) 3.23lbs / 1.47kg
Excursion ( GCC ) 2.66 lbs / 1.21kg
F-Series & Excursion ( w/o Rear A/C ) 2.15 lbs /0.98 kg
All that came with ford new one.
Excursion (w/ Rear A/C ) 3.23lbs / 1.47kg
Excursion ( GCC ) 2.66 lbs / 1.21kg
F-Series & Excursion ( w/o Rear A/C ) 2.15 lbs /0.98 kg
All that came with ford new one.
Fleet Mechanic
Joined: Feb 2007
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From: Mooresville, NC
You're going to need to pull out a voltmeter to check voltages on the A/C Pressure Cutoff Switch and A/C Cycling Switch.....................you are also running a little high on the low side -- may be overcharged or the compressor is acting up.........................what was the ambient temp when you hooked up the gauges ?
Failing that you can always fall back to evaporative cooling in the desert --- except during the monsoon season --- helps with MPGs, but you have to carry around a large tank of water.....
(Please, please ====and DO NOT, under any circumstances tell me you wear yellow during a certain football game in AZ --- I wear RED -- GO WILDCATS (I'm an ALUM))..............
Failing that you can always fall back to evaporative cooling in the desert --- except during the monsoon season --- helps with MPGs, but you have to carry around a large tank of water.....
(Please, please ====and DO NOT, under any circumstances tell me you wear yellow during a certain football game in AZ --- I wear RED -- GO WILDCATS (I'm an ALUM))..............