Tech Tip: Driveability Concerns Revolve Around Saturn’s Cooling System
Customers may comment about various driveability and/or engine operating concerns including: hard start, erratic idle, rough running, engine overheating, low and/or leaking coolant and/or Service Engine Soon lamp illuminated on 1991-2001 Saturn S-Series vehicles. This condition may be caused by a cracked engine coolant temperature sensor. You’ll need to replace the engine coolant temperature sensor, inspect and, if necessary, replace the sensor harness connector.
Tech Tip: Restore Driveability and Performance after Power Disconnect
Many computer-controlled vehicles memorize and store operation patterns that are lost when battery power is disconnected. The computer will use default data until a number of drive cycles have been memorized. To correct this problem the computer must go through a relearn procedure after the battery is disconnected. For the specific relearn procedures, refer to OE service bulletins or a repair manual for your vehicle. If a specific relearn procedure is not available, the following procedure can be used.
Mercedes: Deciphering Driveability Dilemmas
As the oldest surviving automotive manufacturer on the planet, Mercedes-Benz has developed a reputation for superior engineering and quality. Models with new features and mechanical developments have been consistently introduced for more than a century. For the automotive technician, this line of vehicles has been a source of never-ending education. Innovation after innovation has challenged
TDI Driveability: Carbon Plugging of the Intake System
Volkwagen has been selling diesel-powered cars in the U.S. for almost 30 years. Turbocharged versions have been available for 25. That is a lot of experience and a testament to the development of a reliable, efficient and durable powerplant. The introduction and development of the TDI (turbocharged direct injection) brought the VW diesel into the
Hyundai Tech Tip: Throttle Position Sensor Driveability Symptoms
The Throttle Position Sensor (TPS) output signal is an important input for both the engine and transaxle control modules. A malfunctioning TPS may result in numerous symptoms.
Tech Tip: Dirty Fuel Injectors Can Result in Driveability and Performance Problems
When dirt or fuel varnish deposits build up in the injector orifice, it creates a restriction that reduces the amount of fuel delivered with each squirt. Dirty injectors, therefore, run lean and don’t deliver as much fuel as the engine needs.
Hyundai Tech Tip: Throttle Position Sensor Driveability Symptoms
The Throttle Position Sensor (TPS) output signal is an important input for both the engine and transaxle control modules. A malfunctioning TPS may result in numerous symptoms being present.
Nissan: Driveability Issues
Earning Loyal Customers Through Accurate and Efficient Diagnostics This article will take a look at some of the common problems that cause check engine lights to illuminate and/or driveability problems on the popular Nissan line of vehicles. With many states adopting statewide OBD II emission inspections, the days of ignoring the light are over. We’ll
Tech Tip: Diagnosing Subaru Cooler Weather and Driveability Complaints
As the winter season approaches, cooler weather becomes apparent in many parts of the country. With this cooler weather comes the common cool-weather-related driveability complaints.
Diagnostic Dilemmas: Battery-Related Driveability Issues
Any experienced automotive trainer will tell you that the automotive starter battery is the foundation of a vehicle electronics system. Of course, most of us nod our heads in agreement and then proceed to diagnose a driveability problem without first testing the battery’s condition! Unfortunately, short-cut procedures don’t work on the really tough no-code engine