October 2020 Archives - UnderhoodService
Tech Tip: No Start in Cold Weather Due to No Weep Hole

This condition can be caused by condensation freezing in the muffler assembly.

Oxygen Sensor Questions Answered

If an O2 sensor is not reading properly or is borderline, it should be replaced regardless of its age or mileage.

Be Careful When Replacing That Diesel Air Filter

Diesel engines have a certain level of differential pressure that needs to be maintained.

The Spin On Spun Bearings

A spun bearing is usually the end result of a chain of unfortunate events.

Turbo Tech: Smaller Engines Offer Diagnostic Opportunities

Many vehicle owners may not even know if their car or truck is turbocharged.

Reading Oil Product Datasheets

The product data sheet starts with a listing of the basics, like appearance and part numbers.