A/C Archives - Page 6 of 14 - UnderhoodService
­­Top Tech: The Sky’s NOT the Limit ­­

When it comes to finding new customers for the shop, Kim Brant looks outside the box.

A/C Update: R-134a Retrofits Still An Option – At The Right Price

On older vehicles equipped with R-12 systems, is it better to perform a retrofit or is it better to repair the OEM A/C system back to its original form?

VW’s Says it Will Not Use HFO-1234yf Refrigerant in New Vehicles

In a release from R744.com, Volkswagen chief Ferdinand Piech says “the right refrigerant is CO2” for mobile air-conditioning and decides against using 1234yf in new vehicles.

Tech Tip: Water Intrusion From A/C Drain May Cause DTCs On Ford SUVs

A DTC may appear on some 2006-’10 Ford Explorer, Mercury Mountaineer and 2007-’10 Explorer Sport Trac vehicles due to water traveling down from the A/C drain into the solenoid body connector on the left side of the transmission.

Tech Tip: Honda Fit’s HVAC Blower Motor Works Only On High Speed

Applies To: 2009-’10 Fit – All 2011 Fit – From VIN JHMGE8…B5000001 through JHMGE8…B5000012 2011 Fit – From VIN JHMGE8…BC000001 through JHMGE8…BC012605 Symptom: The HVAC blower motor works only on high speed. Probable Cause: Excessive current draw from the HVAC blower motor causes the blower resistor to fail. Corrective Action: Replace the HVAC blower motor

MACS To Release Spanish Language Mobile A/C Textbook

In response to demand from Spanish language speakers in the global automotive aftermarket, the Mobile Air Conditioning Society (MACS) Worldwide has translated its flagship textbook, “Modern Automotive HVAC Systems,” into Spanish. The new Spanish language version will be ready for sale at the MACS 2013 Training Event and Trade Show, Feb. 7-9, 2013, at the Caribe Royale Hotel and Convention Center in Orlando, Fla.

DENSO Develops Cold Storage Evaporator that Limits the Rise in Cabin Temperature During an Idle Stop

DENSO Corp. has developed a Cold Storage (CS) Evaporator, which limits the increase in vehicle cabin temperature during an idle stop when stop/start technology is employed. The newly developed CS Evaporator is equipped with a cold insulator, located in the heat exchanging area, which stores cold energy to be used to cool in-vehicle cabin air while the engine and air-conditioning cycle is off in the idle-stop state.

Visteon Launches ‘Zero Leak’ Fitting on Global Vehicles

A wide range of vehicles going into production this year will be the first to feature a new “zero leak” air conditioning fitting from Visteon Corp.

MACS Worldwide Technician Training Program for (HFO) R-1234yf 
First to Certify to SAE Standard J2845

Taking proactive steps to serve the mobile air conditioning industry, the Mobile Air Conditioning Society (MACS) Worldwide has successfully become the first Section 609 certification provider to certify a new technician training program to SAE J2845 under the SAE J2911 program.

Tech Tip: Volkswagen Has No Power to the A/C Compressor Clutch

Vehicle Application: 2000 Beetle 2.0, 2002 Beetle 1.9, 2002 Golf 1.8, 1999-2003 Golf 2.0, 2000-’05 Jetta 1.8, 1.0, 1999-2005 Jetta 2.0 and 2000-’02 Jetta 2.8 Customer Concern: The A/C is not working. There is no power to the A/C compressor clutch and it does not engage. (Manual climate control.) Potential Causes: A/C Compressor, A/C Pressure

MACS Announces Fall Mobile A/C Boot Camp

The Mobile Air Conditioning Society (MACS) Worldwide has announced the dates for its fall Mobile A/C Boot Camp. The two-day boot camp is scheduled for Friday, Sept. 28 and Saturday, Sept. 29 at the MACS Worldwide training facility in Lansdale, PA (suburban Philadelphia).

Tech Tip: Toyota Highlander’s Heater Goes from Hot to Cold on its Own

A loose control knob potentiometer could cause erratic behavior on a Highlander climate control system.