WHAT IS THE PROBLEM?

Asked by Jun 26, 2015 at 06:09 PM about the Ford E-350

Question type: Maintenance & Repair

03 FORD E350 NOT BLOWING COLD ENOUGH. HIGH SIDE PRESSURE AT 250 PSI
LOW SIDE AT 70 PSI

4 Answers

19,810

Compressor not clicking on and off ? If not sounds like your orfice tube filter could be partially clogged this filter is in the high side line of A.C system that is the small line. To remove there is a disconnect that takes a special tool to separate the line then you will need a pair of needle nose pliers to remove filter from inside line.

I replaced that. Still getting very high low side pressure with normal high side pressure.

19,810

Try cleaning your A.C condenser coil with a garden hose and nozzle or better yet a pressure washer your coil may be partially clogged with dirt and bugs causing little to no air flow across the condenser coil.

25,595

Check your Fan Clutch too. How hot is it where you are? If the Orifice Tube were blocked, you would have a very high High-side and a very low Low-side. I'd look for an air flow problem across the condenser - or just a 107 degree day will do it too.

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