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Old 04-09-2005
Kyle F's Avatar
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I am: Kyle Felts
Join Date: Mar 2005
Location: Knoxville, TN
Vehicle: 2004 Ford Range Edge
Posts: 37
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Truck Starts... Lots of Noise form AC

Well I changed my oil today, and afterward I started it up.. checked the plug and filter for leaks... shut it off and it started hissing. And the A/C pipes were cold, but the AC is not on. What gives?
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Old 04-09-2005
rwenzing's Avatar
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iTrader: (4)
I am: Bob .
Join Date: Nov 2004
Location: Michigan
Vehicle: 2003 Ford Ranger
Drive Type: 4x4
Engine: 5.0
Posts: 7,773
Total Props: 19
The AC hisses when shut off as the high and low pressure sides equalize in pressure.

On your 2004, the AC compressor is enabled in the folowing modes:

Floor only
Max AC

The only modes where it is not enabled are

Panel only (vent)
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Old 07-14-2009
I am: John P
Join Date: Nov 2006
Location: Dublin, GA
Vehicle: 1998 Ford Ranger
Posts: 23
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Bringing this thread back '98 is hissing while on.
I can tell the compressor is on and then it clicks off and hisses inside (cold air still blowing throughout all of this), then clicks back on, then clicks off and hisses inside, etc.
I had a buddy charge it on sunday, its tuesday and I think I'm already running low on freon again. We sniffed it and couldnt find a leak, so we assumed on sunday it was leaking in the evaporator coil. Any thoughts on this? Thanks
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Old 07-14-2009
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I am: Joe Blough
Join Date: Oct 2007
Location: NH
Vehicle: 1995 Ford Ranger
Posts: 191
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When i saw the post my first thought was the click clack problem. It is a known issue. There is a TSB on it. I never bothered to fix mine on my 1995 because I read somewhere it is not harmful, just noisy.

Here is a link to the known issue for my year. You can find yours by doing a search.
Automotive Recalls and Technical Service Bulletins for 1995 Ford Truck Ranger 4WD V6-182 3.0L. Provided by ALLDATA

01-21-2 OCT 01 A/C Clutch - Loud Engagement Noise

But they want $$ if you want the info to fix. Someone here may know what to do but Ford seems to have known about the issue and what to do.
You can also check with your dealer, if they will give you the info.

EDIT: Of course the hiss, I don't know. The clutch click clacking might be this, in my totally unprofessional opinion.

95 Ranger Styleside SWB 4X4, 3.0, Auto, 4.10, 145,000 Miles

Century Cap, BF Goodrich All Terrain 30x9.50's, Reese Hitch, K&N Air Filter, Taylor Wires, Splitfire Plugs (I have had good luck with them), Bed Mat, Upgraded to factory alloy rims from "argent wheels", Cat, Dynomax Cat Back, Additional Battery Charging System, Transmission Oil Cooler, Grizzly Grill/ Brush Guard, Hella 500 Amber Fogs, Chrome Diff Cover, Nerf Bars, new bumper.

Upgraded to NH registration from Mass (Best upgrade!)

To come:
OEM Tube Rear Bumper, Tow Hooks, 31x10.50's, Larger or Additional Fuel Tank, Locker
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