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  #1  
Old 01-14-2011, 08:24 PM
grant jordan grant jordan is offline
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Default A/C problem with 4.0 2001 edge

im sorry if im posting this in the wrong place.

i have 2001 ford ranger edge 4.0 4x4 , with 147,322.00 miles on it, and it runs great, but ,, and of course its always a but,, right?
anyway, i live in Miami, Fl and my air conditioning works great but only after about 15-25 minutes of driving, when i start it, it only blows hot air, but after 15-30 minutes , it comes on and blows cold. i have had the system recharged, and die put in. but that didn't help. i also noticed that the a/c clutch isn't coming on when i first start the engine. it has to warm up first apparently, then after it does, it works great, but,,,,,, why doesn't it come on until 20-30 minutes after driving? it should be blowing cold as soon as i turn on the engine? RIGHT?
SO, i im at a loss, i do have some mechanical ability, 20+ years working on diesel trucks, but this has got me stumped. please help if you can.
THANK YOU, SINCERELY,
GRANT M JORDAN
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  #2  
Old 06-30-2011, 07:31 PM
Bert Saxby Bert Saxby is offline
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Default Re: A/C problem with 4.0 2001 edge

I'm having the exact same problem with my 2002 Ford Ranger. After 20-30 minutes of driving, it works fine. Vent blows hot, too.
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  #3  
Old 07-01-2011, 12:00 PM
lvbluesboy lvbluesboy is offline
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Default Re: A/C problem with 4.0 2001 edge

Just a thought. Have you checked to make sure your blend door is moving to the "cold" position? This is unfortunately a pretty common problem in Rangers.

The temperature setting knob controls a small motor sitting on top of the venting housing. Sometimes these motors quit working correctly or it is possible that the blend door itself may have broken and isn't moving like it should.

There are a number of links in this forum on this subject. Take a look through the search function. It makes for interesting reading.

My truck was doing the same thing. I have replaced the temperature control, replaced the blend door (it was acutally fine, blast it) and have a new motor to put on, but I haven't done that yet.

right now, the old motor is taken apart and I control the door manually. Hey it works, but is certainly not a long term solution.

Hope this helps.
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  #4  
Old 07-01-2011, 07:06 PM
north44 north44 is offline
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Default Re: A/C problem with 4.0 2001 edge

There's a relay for the A/C in the underhood power distribution box - check that.

I had a faulty one in my truck that was the cause of an intermittent no-run situation with the A/C - new relay solved the problem.

Simple and easy to switch out - hope this is helpful.
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  #5  
Old 07-01-2011, 09:44 PM
Rg1Baja Rg1Baja is offline
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Default Re: A/C problem with 4.0 2001 edge

Quote:
Originally Posted by north44 View Post
There's a relay for the A/C in the underhood power distribution box - check that.

I had a faulty one in my truck that was the cause of an intermittent no-run situation with the A/C - new relay solved the problem.

Simple and easy to switch out - hope this is helpful.
x2. Easiest cheap way to find out. It could be the blend door as well and those are a blast to fix. Pack a lunch.
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  #6  
Old 07-05-2011, 11:57 AM
lvbluesboy lvbluesboy is offline
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Default Re: A/C problem with 4.0 2001 edge

Pack a lunch! He's not kidding.

Hey north44, does the relay affect the temperature control/blend door function as well?

My AC works just fine with the blend door manually in the correct position, but the temperature control didn't seem to work. Hence the new temperature control (which was dead functionally) and motor, but I haven't put the motor in yet. This weekend probably, but I would like to check out that relay.
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  #7  
Old 07-06-2011, 03:23 PM
grant jordan grant jordan is offline
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Default Re: A/C problem with 4.0 2001 edge

to reply to my original thread i did fix it, it was the evaporator had a hole at the bottom, and was full of leaves and debris , which rotted it out. it cost me $525.00 through my mechanic which gave me a break on labor. but with that i got a new evap + dryer and die if any leaks should occur again.
Thanks for all the messages and helpful hints.
Grant.
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  #8  
Old 07-06-2011, 04:01 PM
north44 north44 is offline
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Default Re: A/C problem with 4.0 2001 edge

Quote:
Originally Posted by lvbluesboy View Post
Pack a lunch! He's not kidding.

Hey north44, does the relay affect the temperature control/blend door function as well?

My AC works just fine with the blend door manually in the correct position, but the temperature control didn't seem to work. Hence the new temperature control (which was dead functionally) and motor, but I haven't put the motor in yet. This weekend probably, but I would like to check out that relay.

Not as far as I know, but maybe someone else can chime in - I believe the relay controls power to the A/C compressor exclusively - maybe someone can correct me if I'm wrong.

The blend door and those associated functions would work properly (as far as I could determine) when I had the A/C relay issues, so i would imagine that that other stuff is separate.

As for the temperature control, I really don't know.

Maybe I was lucky in finding out about the A/C relay on my truck - but then I've also had "no-start" issues that ultimately traced back to relays, or other electrical related origins of problems - so I guess I tend to look to electricals for (hopefully) simple and quick fixes for a host of issues - not that electricals are simple or easy by any means, but we can learn something new all the time.
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Last edited by north44; 07-06-2011 at 04:07 PM. Reason: Sp.
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  #9  
Old 07-06-2011, 04:02 PM
FireRanger FireRanger is offline
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Default Re: A/C problem with 4.0 2001 edge

Quote:
Originally Posted by lvbluesboy View Post
Pack a lunch! He's not kidding.

Hey north44, does the relay affect the temperature control/blend door function as well?

My AC works just fine with the blend door manually in the correct position, but the temperature control didn't seem to work. Hence the new temperature control (which was dead functionally) and motor, but I haven't put the motor in yet. This weekend probably, but I would like to check out that relay.
The relay is just for the AC compressor's electromagnetic clutch. It does nothing else.

The blend door actuator (the thing you're calling a motor) is a pretty common failure. And it is a much easier failure than the blend door itself!
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  #10  
Old 07-06-2011, 04:11 PM
north44 north44 is offline
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Default Re: A/C problem with 4.0 2001 edge

Quote:
Originally Posted by FireRanger View Post
The relay is just for the AC compressor's electromagnetic clutch. It does nothing else.

The blend door actuator (the thing you're calling a motor) is a pretty common failure. And it is a much easier failure than the blend door itself!
Fire Ranger - You Da Man!

Makes me feel better that my guess/hunch was confirmed.
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  #11  
Old 08-14-2012, 02:28 PM
taconic taconic is offline
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Default

Where is the distribution box? The relay?
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  #12  
Old 08-16-2012, 07:24 AM
taconic taconic is offline
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Default Re: A/C problem with 4.0 2001 edge

Found it. It wasn't the relay. Bough an over-the-counter a/c recharge kit. Boost the pressure to the normal range and the compressor kicks back on!!
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  #13  
Old 07-06-2014, 10:42 AM
troy.clements troy.clements is offline
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Default Re: A/C problem with 4.0 2001 edge

Quote:
Originally Posted by grant jordan View Post
im sorry if im posting this in the wrong place.

i have 2001 ford ranger edge 4.0 4x4 , with 147,322.00 miles on it, and it runs great, but ,, and of course its always a but,, right?
anyway, i live in Miami, Fl and my air conditioning works great but only after about 15-25 minutes of driving, when i start it, it only blows hot air, but after 15-30 minutes , it comes on and blows cold. i have had the system recharged, and die put in. but that didn't help. i also noticed that the a/c clutch isn't coming on when i first start the engine. it has to warm up first apparently, then after it does, it works great, but,,,,,, why doesn't it come on until 20-30 minutes after driving? it should be blowing cold as soon as i turn on the engine? RIGHT?
SO, i im at a loss, i do have some mechanical ability, 20+ years working on diesel trucks, but this has got me stumped. please help if you can.
THANK YOU, SINCERELY,
GRANT M JORDAN
After my AC compressor pump went out in my 2001 Ford Ranger 2.3, I started having the same symptoms, but after a long investigative process the fix turns out was quite easy. Go to the Fuse/Relay box under the hood. Remove the AC Clutch relay and switch positions with the Window Washer water pump relay (should be 56a and 56b they will be right next to each other). Get back in the truck and engage the window wiper fluid switch; if the water does not spray on your windshield, the AC Clutch relay is bad.

Last edited by troy.clements; 07-06-2014 at 10:53 AM.
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