Directions: The Impact of HF0-1234yf on Service Shops
According to the new refrigerant’s developers, there are chemical differences between HFO-1234yf and the current R-134a system. As a shop owner, you’ll need to learn the Safety, Equipment and Charging Issues surrounding this new refrigerant.
Tech Feature: New Refrigerant Change May Not Be a ‘SNAP’
The introduction of HFO-1234yf in vehicle A/C systems in the U.S. could be a few years away. However, it is plausible that some (dealership technicians and collision repairers) may see HFO-1234yf systems by late 2011 and early 2012, as European models begin the R-134a phase-out and make their way across the pond. (R-134a is to be completely phased out of new European systems by 2017.)
Lexus Tech Tip: A/C Condenser Fan Relay Corrosion on 1998-2000 LX 470s
Some 1998-2000 model year LX 470 vehicles may have a condition in which the A/C condenser fan continues to run after the ignition is turned off due to corrosion in the relay connector. A repair kit (P/N 88840-60070) consisting of a new relay and sealant has been made available to correct this concern.
MACS Releases Updated A/C & Cooling Systems Specifications Manual
MACS has updated the A/C & Cooling System Specification Reference manual to include service and repair information on vehicles 1996-2010.
U.S. EPA Climate Protection Partnership and MACS Worldwide Join Forces for Free Mobile A/C Informational Webinars
First free webinar scheduled for Thursday, Dec. 10, 2009 at 1 p.m. EST.
Toyota: Insufficient Cabin Cooling
Some 2001-’04 Sequoia and 2000-’04 Tundra vehicles may exhibit a condition where the air conditioning system does not sufficiently cool the cabin. Adjustment of the water control valve is necessary to correct the condition. 2. Inspect the clearance between the water control valve lever and the lever stop. If the lever does not contact the
Tech Tip: Kia A/C Compressor Bracket Replacement
Some 2002-’05 Sedona (GQ) vehicles may exhibit a humming noise and vibration when the A/C is turned on. To address this condition, replace the A/C compressor bracket with P/N 1K52Y 15810FFF.
Tech Tip: Honda Pilot’s Compressor Clutch Has Taken Off
No A/C compressor clutch. The scan tool says A/C off and A/C switch off. There is no air out of the front vents, but the blower motor operates and changes speeds with the front switch.
Tech Tip: Erratic 4Runner Blower Motor
Some Toyota 4Runner owners may complain of a condition where the blower motor speed does not match the HVAC display indication.
A/C Update: The Future of Cool
Editor Ed Sunkin returns from the Mobile Air Conditioning Society Worldwide trade show and convention in February, 2009, with details on the possible future of the U.S. refrigerant segment of the industry — HFO-1234yf. This refrigerant provides a very low global warming potential and many new service and sales opportunities.
BMW Climate Control Diagnostics: Resolving Any Cooling System Problems First Speeds Repairs
First Speeds Repairs There was a time when the heating and ventilation system on most cars was simple. A three-position switch, a couple of levers and maybe some separate vents that would allow outside air to enter the passenger compartment. Times have changed and today’s car buying public wants to dial in a desired temperature
Tech Tip: Cabin Air Filters Keep Heater, Air Conditioner and Defroster Operating Properly
Cabin air filters prevent leaves, dirt, bugs and other debris from entering the HVAC (Heat Ventilation and Air Conditioning) system. This prevents the fan and control doors from becoming jammed with debris that could cause fan noise or affect the operation of the heater, air conditioner and defroster. Keeping the HVAC system clean also helps reduce the growth of odor-causing mold and other microbes on the A/C evaporator ….