Question about Firestone 2404 - 1999-2012 Ford F550 2wd/4wd w/o Factory Bed - ride-rite Air Bag Helper Springs [rear]

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2012 f550 6.7 diesel air conditioning is not working right because of high side pressure is very high and put water to the front condenser then truck get cool and pressuere normal

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Look for a bad expansion valve in the evap. Also you can get an oil plug in the condenser tubing that will raise the pressure too.

Posted on Jan 29, 2014

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Posted on Jan 02, 2017

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2007 Ram Truck: where is low side of ac to recharge in 2007 dodge ...


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I have a 99 chevy suburban that won't cool past 60 degrees and when idling is at 70 degrees. I have replaced the a/c compressor, orfice tube,the accumilator,rear expension valve, and fan clutch. My low...


These numbers are a little high depsite the high ambient conditions.Amazingly enough ,automotive low side suction pressure will equal the degrees its putting out at the evaporator coil...for instance,70 psi low side pressure will produce about 70 degrees of cooling. At 300 psi on the high side(which is high) this is about as low as the suction pressure will go....you need it to go lower.I would probably be concerned with the freon level as a slight overcharge could boost these numbers.Poor air flow through the condenser can also create a higher head pressure than desired.If possible,I would evacuate and re-charge the system with the correct amount of 134a refrigerant. Try to get those pressures lower...about 250/50 would be a decent pressure value in this ambient condition.Verify good airflow through the coils and pay close attention to any foreign debris like plastic grocery bags or wrappers covering the coils...Ive even seen these make their way between the small gap between the condenser and radiator so use a light and inspect carefully for this.Air flow through that condenser coil is vital and any deficit there will create high head pressure which obviously causes high suction pressures....good luck

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I cannot differentiate between the low pressure and high pressure


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Mechanic said car nedds new condensor, is the condensor in the radiator ?


The condenser is part of your air conditioning system. Hot high pressure freon gas from your air conditioning compressor will run through your condenser to dissipate heat and condense into a liquid.
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