Tech Tips Archives - UnderhoodService

More Tech Tips

Ford- Illuminated MIL/Engine Coolant Over Temperature Warning

This may be caused by the engine coolant temperature (ECT) sensor or knock sensor wiring harness.

Ford 3.5L EcoBoost Turbocharger Oil Leaks

Ford has revised the service information for the inspection and pinpoint tests of the turbocharger and oil lines.

Monitor Water Quality When Servicing Coolant

The harder the water, the more likely the water pump is to develop a leak.

Carbon Deposit Q&A

Follow along to learn more about carbon deposits.

BMW Daytime Running Lights Are Dim

The issue is likely because the connection between the LED module & light tube inside.

Subaru PCV Hose Redesign

Always order the most up-to-date replacement parts based on the specific model.

GM No Crank/Start and Key Fob Range Problems

2007-2023 GM vehicles use Radio Frequency (RF) to transmit information.

Ford 2.0L EcoBoost Rattle Noise

To correct the condition, follow the Service Procedure to replace the flexplate, transmission fluid pump & torque converter.

Beating the Tech Shortage Through Mentoring

How understanding the 80/20 Rule and creative mentoring can make the shortage less threatening.

GM Diagnostic Tip on Misfires, Noises and DTCs

Determine which description best matches the vehicle you are working on, and perform the suggestions as necessary.

Inside the Scan Tool

A look at the internal and external components that affect performance and durability.

Modern Vehicles Need Precious Metals 

Modern ignition systems require dual precious metal spark plugs capable of supplying the highest voltage outputs to date