pressure Archives - Tomorrows Technician
When Good Clutches Go Bad: Diagnosing Clutch Issues

Rowing gears with a manual transmission is lots of fun, especially in a lightweight car with way too much horsepower. But when the gears start crunching and the clutch pedal sinks to the floor and you’re stuck at the line or a stoplight, a stick shift suddenly isn’t so much fun anymore. What’s more, fewer

VIDEO: Pressure Switch Problems

Sometimes the valve could be stuck open and not allow the engine to build oil pressure. This video is sponsored by FRAM.

Fuel Pump Pressure: Optimal Flow Factors

All too often, technicians assume fuel pressure is “good” without actually measuring it. If the engine runs, they assume the injectors are getting adequate fuel pressure. If the engine cranks but won’t start, and they depress the service valve on the fuel rail and some fuel squirts out, then they assume the injectors have pressure.

P1745 Tech Tip

In this excerpt from the 2011 ATSG Seminar class, Instructor Wayne Colonna talks about 41TES and 42RLE VLP transmissions with a P1745 DTC. These codes are usually the result of a problem with a pressure control solenoid that should be reducing line pressure at idle.

Hybrid HVAC Systems Quick Quiz

Do you understand how the HVAC system carries out its job in the complex world of the hybrid vehicle? This quiz on Hybrid HVAC systems test your knowledge on the use of proper testing equipment, and what to look for when dealing with HVAC problems.

TPMS Quick Quiz

Since 2007, tire pressure monitoring (TPMS) systems are required on all vehicles in the US. Take our five question quiz to challenge your understanding of the new techniques and latest information on these systems.

4L60E-Pressure Switch Manifold Quick Tip

From 1993 to 2008 the GM 4l60E transmission used a pressure switch manifold to tell the computer what gear was selected. In this Tip Clip instructor Wayne Colonna gives a detailed technical overview of this component with some helpful info on diagnosing associated problems.