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Ford Bronco not so cold

Wavecrazed on Sun June 14, 2009 7:28 AM User is offline

Year: 92
Make: Ford
Model: Bronco
Engine Size: 5.8 ltr
Refrigerant Type: R134
Ambient Temp: 90
Pressure Low: 150
Pressure High: 135
Country of Origin: United States

HI, I converted this truck to r-134. Flushed all system with brake cleaner and compressed air. Changed clogged orifice tube and put on a used compressor. I am getting some cold air but when vehicle slows down it does not get overly cold. I think vent temps were 50 degrees. I'm in florida and it get hot. I am missing the fan shroud as installed a radiator that is fat. I plan to put back fan shroud. My friend says I may have a clog. I put in the proper amount of 134 I believe 80% of 2 lbs. Any Ideas here.
Thanks
Tim

mk378 on Sun June 14, 2009 11:09 AM User is offline

You may need more refrigerant to make it work best, but then your high side will be too high when sitting still. This is a common situation: undercharging that is masked by poor condenser cooling. You really need the fan shroud and a good fan clutch. You can try putting water on the condenser and see if the high side drops considerably.

Chick on Sun June 14, 2009 7:42 PM User is offlineView users profile

Ditto on the fan shroud and clutch fan, you need to move a lot of air over the condenser to remove the heat...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Wavecrazed on Mon June 15, 2009 12:20 PM User is offline

A few other things. I noticed when I first hooked up the guage to low side it was 190 Then is went lower. . I hear a whisling after shut down too. Is that the pressure release vavle? I will find shroud and check further. Thanks.

Edited: Mon June 15, 2009 at 12:22 PM by Wavecrazed

Chick on Mon June 15, 2009 4:56 PM User is offlineView users profile

Make sure the wheels on the manifold set are closed, the low side will be as high as the pressure in the system until started.. The whistling could just be the pressures equalizing, thru the O tube, happens more often with a low charge..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

customfoam on Mon June 22, 2009 1:05 AM User is offline

I had replaced my condensor in my truck it is a 93 f150 that was used for less than a year to a 95 condensor which is used for 134 only thing I had to do is make a new liquid line from condensor using #6 o ring fitting to #8 spring lock into the evaporator, it works wonderful, before the change I had problems getting the heat out of the condensor.

Wavecrazed on Mon June 22, 2009 6:39 PM User is offline

Ok thanks I will try to find a 94 ford condensor.
tim

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