Heating / Cooling Archives - Page 9 of 149 - UnderhoodService
Spectra Premium Introduces A New Line Of Cooling Fan Assemblies

Spectra Premium Industries has introduced a new line of Cooling Fan Assemblies that will be available Nov. 1. Spectra Premium says this new line of cooling fan assemblies complements the company’s existing categories of radiators and A/C condensers in supporting both the traditional replacement and collision markets. The introduction of these new cooling fans will

A/C Oil Service: Avoid Compressor Failure With Proper Maintenance

HVAC systems often fail because the air conditioning compressor fails. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor failure. Refrigerant Since the mid-‘90s, all vehicles have been using R-134a refrigerant, but soon, vehicles will arrive at your shop equipped with R-1234yf refrigerant. This is the

AC Oil Compressor failure
How Ford’s New Grille Shutters Control Airflow

Some new Ford vehicles feature active grille shutters — a new system that optimizes aerodynamics by using vents to control airflow through the grille to the cooling system and engine compartment. If air is required to cool the engine, the vents are opened. If no airflow is needed, the vents are shut, contributing to significantly

Ford Edge Airflow Cools Engines
How Engine Coolant Temperature Sensors Influence The Modern Powertrain

  Considering that roughly 1,500 or more ­different vehicle models are introduced into our domestic market each year, it’s becoming more difficult to predict how a powertrain control module (PCM) will utilize data from a particular sensor or detect an out-of-range sensor in any single vehicle platform. The engine coolant temperature (ECT) ­sensor provides a

ECT sensor data diagnostics
CRP Automotive Introduces Environmentally Friendly Pentofrost E Antifreeze For Multipurpose Applications In Water-Cooled Engines

CRP Automotive, a leading source of OE-quality replacement parts for Asian and European import vehicle applications, has introduced Pentofrost E, a multipurpose antifreeze concentrate produced through an environmentally friendly process. According to CRP, this new product delivers the same performance as Pentofrost ++ while meeting the OE specifications of Audi/Volkswagen TL 774 J. It also

Saturn HVAC Performance Issue: Noise Concern

Condition Some customers may comment that the vehicle’s A/C is not cooling or is not cold enough and/or the A/C compressor is noisy. Correction Do not replace the A/C compressor. For concerns of A/C system noisy during slow parking lot maneuvers, replace the HVAC hose with suction line (P/N 20757021 or aftermarket equivalent). For concerns of A/C

Saturn Outlook hestitation at high mph
Penray Introduces Synthetic Media Heavy-Duty Coolant Filters

Penray has introduced a new line of heavy-duty coolant filters featuring synthetic media with what it calls “triple-layer engineering.” The new Penray synthetic media coolant filters are designed to last up to 150,000 miles, 15 months or 3,000 operating hours, and are fully compatible with conventional coolants as well as new-generation Extended Life Coolants (ELCs).

Tech Tip: How to Properly Install an Orifice Tube

This Tech Tip is presented by our friends at the Mobile Air Conditioning Society. Installing an Orifice Tube properly is an important part of general A/C maintenance. Steve Schaeber explains how to install the Orifice Tube in relation to refrigerant flow, the reason for its design and the tool needed for removal. [computer] Please enable

ACDelco Offers Environmentally Friendly Refrigerant

ACDelco is now offering R-1234yf refrigerant, a new, environmentally friendly air conditioning refrigerant that has a 99.7 percent lower global warming potential (GWP) than R-134a. The new ACDelco refrigerant is sold in 4.5 kg containers (No. 19260234) and is available for use in certain GM models starting with the 2013 Cadillac XTS and the 2014

10 Paths to Water Pump Problems

Know your leaks Leaks are the most common sign of water pump failure, but what type of seepage are you seeing and what does it mean? A coolant leak coming from the weep hole is a sign of water pump bearing or seal failure. This weep hole often resides between seals that separate the oil

Chevrolet Camaro Coupe engine
HVAC Sensors: More Than Just Temperature

When a driver sets a temperature in the control head of an HVAC system, what does it mean to the vehicle? Seventy-two degrees could mean many different settings depending on the outside temperature, humidity and even the position of the sun. When a passenger decides that 70 degrees is a better temperature for their zone,

HVAC air circulation
Telltale Signs Of Cooling System Component Failure

Springtime brings with it the vacation season when many families will hitch a boat or camping trailer to their fully loaded family car, SUV or pickup truck and travel to some remote wilderness hideaway. Needless to say, both the parents and their vehicle’s cooling system will be stressed out long before the trip is over.

Cooling system signs of failure