Hi I'am a new owner of a 1999 F150 5.4 4x4. There is antifreeze collecting on the bottom of the air conditionor compressor, its located on the passenger right side. My dealer looked at it last week and said no problem found. Well its still leaking green fluid. Its a very small leak. The truck is one month old, with 1,250 miles. I also really have enjoyed reading everyone's post!
First Timer. Any sugestions would be of help.

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1999 F150 Lariat 5.4 Styleside, Super Cab, Short Box, 4X4 373 Gears, Automatic Electronic Shift, Off Road Package, Tow Package, Limited Slip, Heavy Duty Electrical, Engine Block Heater, AM/FM/CD Indash, Captains Chairs, Wedgewood blue & Beige, Luverne Stainless Step Bars, Lund Interceptor, Ventvisors, Factory Rear Molded Mud Guards, Ford Motorsport on Front, Ford Bedliner/with rubber mat,

[This message has been edited by JCAM (edited 11-26-1999).]

[This message has been edited by JCAM (edited 11-26-1999).]

 

Heater hose clamp too loose ?

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'95 Eddie Bauer F-150 SC & '64 Falcon/Ranchero
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Your leak is coming from a bad hose clamp. I'm not really sure which one it is but mine had the same leak and a couple buddies of mine also had it. I'll try to find out which hose clamp it is but in the mean time I'd tell your dealership to concentrate on one of the hose clamps on the right side.

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98' F-150, Off Road, Short Box, Blue, 4.6, K&N, Auto, Captain Chairs, Dual Exhaust
Alpine CD Player, (2) 10" Rockford Fosgate Subwoofers and a big ol' Arctic Cat
sticker on the rear sliding window!!!!! Soon to be chipped!!!

 

Thank's alot guys. I will be conducting a test with engine running and the heater on high. I'LL post the results when its found. This is one great truck!

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1999 F150 Lariat 5.4 Super Cab, Short Box 4X4 373 Gears, Automatic Electronic Shift, Off Road Package, Tow Package, Limited Slip, Heavy Duty Electrical, Engine Block Heater, AM/FM/CD Indash, Captains Chairs, Wedgewood blue & Beige, Luverne Stainless Step Bars, Lund Interceptor, Ventvisors, Factory Rear Molded Mud Guards, Ford Motorsport on Front, Ford Bedliner/with rubber mat,

 

Run the engine hard for a while. Get it nice and hot, then immediately park it and shut it down. The cooling system will hit it's peak pressure within a really short period of time AFTER you turn the engine off. Idling will actually cool off the engine block.

The dealer probably left the engine idling and there wasn't enough pressure built up in the cooling system to force the leak.