Today’s vehicle electronics are becoming very high-tech with the addition of many new creature comforts. One such feature is dual temperature control, automatic temperature control (ATC) or also called electronic climate control. This feature allows the ability to adjust different temperatures and fan speeds for the driver and passengers. Another word associated with temperature controls is HVAC (heating, ventilation, and air conditioning) which refers to the technology of indoor or automotive environmental comfort. The most common failure complaints with ATC systems is the mode selection fails or loses its ability to switch airflow which defaults to the defrost setting. This system is very complex,...

These two conditions seem to be very common and require similar repair procedures (removal of the intake manifold). GM has recognized these problems and has issued a parts revision and TSB (Technical Service Bulletin) to repair these symptoms. First, we will talk about a rough idle. Most vehicle owners complain about a rough idle or a misfire when the engine is cold, and as the engine warms up the problem goes away??? But, leaving your check engine light on, with codes PO300, PO171 and PO174. PO300 is a misfire code that is usually fixed by new ignition parts like spark...

Most modern vehicles come with the option for keyless entry. The problem is that these transmitters drop, break, get lost, rubber buttons wear, contacts inside become corroded and the plastic case can crack. TechSmart™ offers one of the most common keyless entry transmitters providing a high-quality, cost-effective solution to replace the damaged or lost original. Some helpful hints on reprogramming your keyless entry transmitter (key fob) Electronically unlock all doors prior to attempting to enter Remote entry programming mode. Do not press the brake pedal during manual remote entry programming procedure as it will immediately exit you from that mode  (this...

The LCM is Ford's answer to problems with electronic interference and excessive heat with thermoelectric devices used previously. The LCM is a microprocessor-based module that controls several exterior lighting systems. The system includes headlamps with auto-lamps (if equipped), turn-signals/hazards, corning lamps, parking lamps, and battery saver.The most common problem with the lighting control module is that the headlights stop working for short periods of time while driving due to the relay in the control module over-heating. Ford recommends only using headlight bulbs that meet their specifications, as this may cause or contribute to this condition.Ford headlamp bulb specifications – Bulb part...

5.9L Cummins Diesel engine block heater cord. What does a block heater do? The block heater warms the engine coolant and oil, providing easier starting in low temperatures. On 2003-2007 Dodge trucks the heater element is already installed in the block; you just need to remove the cap and plug in the extension cord. The plug is located on the passenger side, by the turbocharger. The most common way of routing the cord would be from the element leading out through the vehicle’s grille. When routing cord be sure not to place cord by any moving or hot parts, using...