99.5 F250 super duty has the valve installed to cut off coolant flow to heater core. Blend doors and vacuum controls all working properly.
A/C isn't cooling like it should. due to a wreck condenser and dryer were replaced a few months ago and i dont think it was charged enough. I found these 2 references stating that ford raised the weight of the 134a charge but the tags on the compressor are wrong. Can someone please tell me which of these is correct or if neither correct what is the correct weight in ounces of refrigerant to add to to an evacuated system.
18674 1999-2006 F-SUPER DUTY/2000-2005 EXCURSION - LACK OF A/C COOLING - EVACUATE AND RECHARGE THE A/C SYSTEM
SOME 1999-2006 F-SUPER DUTY AND 2000-2005 EXCURSION VEHICLES MAY EXHIBIT A LACK OF A/C COOLING AT HIGHWAY SPEEDS. THIS MAY BE CAUSED BY RAPID CYCLING OF THE A/C COMPRESSOR CLUTCH DUE TO LOW SUCTION PRESSURES. TO SERVICE VEHICLES BUILT BEFORE 7/18/04, EVACUATE AND RECHARGE A/C SYSTEM WITH: - 45 OZ (1.28 KG) OF R134A ON VEHICLES WITHOUT AUXILIARY AIR. - 68 OZ (1.93 KG) OF R134A ON VEHICLES WITH AUXILIARY AIR (EXCURSION ONLY). THE LABEL ON THESE VEHICLES WILL INDICATE A DIFFERENT RECOMMENDED CHARGE LEVEL. ALL VEHICLES BUILT AFTER 7/18/2004 RECEIVED THIS REVISED CHARGE WHEN PRODUCED, BUT THE LABEL HAS NOT YET BEEN UPDATED IN PRODUCTION. FOR VEHICLES BUILT AFTER 7/18/04, AND ALL OTHER LACK OF A/C COOLING SYMPTOMS, REFER TO SECTION 412-00 OF THE WORKSHOP MANUAL FOR NORMAL DIAGNOSTICS.
EFFECTIVE DATE: 06/10/2005
Or
99/2000 F-Series Poor A/C Performance:
There are two issues related to this concern. For Super Duty F-Series and F-650/750, check to insure the orifice tube is not installed backwards--TSB #00-17-2. For a rapid cycling concern at highway speeds on Super Duty F-Series, this may be due to low suction pressures and additional refrigerant is required. Recover the refrigerant from the system, evacuate and recharge the system with 56 ounces of R-134a--Broadcast Message 9383
Thank You,
Tripp16
A/C isn't cooling like it should. due to a wreck condenser and dryer were replaced a few months ago and i dont think it was charged enough. I found these 2 references stating that ford raised the weight of the 134a charge but the tags on the compressor are wrong. Can someone please tell me which of these is correct or if neither correct what is the correct weight in ounces of refrigerant to add to to an evacuated system.
18674 1999-2006 F-SUPER DUTY/2000-2005 EXCURSION - LACK OF A/C COOLING - EVACUATE AND RECHARGE THE A/C SYSTEM
SOME 1999-2006 F-SUPER DUTY AND 2000-2005 EXCURSION VEHICLES MAY EXHIBIT A LACK OF A/C COOLING AT HIGHWAY SPEEDS. THIS MAY BE CAUSED BY RAPID CYCLING OF THE A/C COMPRESSOR CLUTCH DUE TO LOW SUCTION PRESSURES. TO SERVICE VEHICLES BUILT BEFORE 7/18/04, EVACUATE AND RECHARGE A/C SYSTEM WITH: - 45 OZ (1.28 KG) OF R134A ON VEHICLES WITHOUT AUXILIARY AIR. - 68 OZ (1.93 KG) OF R134A ON VEHICLES WITH AUXILIARY AIR (EXCURSION ONLY). THE LABEL ON THESE VEHICLES WILL INDICATE A DIFFERENT RECOMMENDED CHARGE LEVEL. ALL VEHICLES BUILT AFTER 7/18/2004 RECEIVED THIS REVISED CHARGE WHEN PRODUCED, BUT THE LABEL HAS NOT YET BEEN UPDATED IN PRODUCTION. FOR VEHICLES BUILT AFTER 7/18/04, AND ALL OTHER LACK OF A/C COOLING SYMPTOMS, REFER TO SECTION 412-00 OF THE WORKSHOP MANUAL FOR NORMAL DIAGNOSTICS.
EFFECTIVE DATE: 06/10/2005
Or
99/2000 F-Series Poor A/C Performance:
There are two issues related to this concern. For Super Duty F-Series and F-650/750, check to insure the orifice tube is not installed backwards--TSB #00-17-2. For a rapid cycling concern at highway speeds on Super Duty F-Series, this may be due to low suction pressures and additional refrigerant is required. Recover the refrigerant from the system, evacuate and recharge the system with 56 ounces of R-134a--Broadcast Message 9383
Thank You,
Tripp16
