October 2021 Archives - UnderhoodService
Starters & Alternators – Tips For Diagnostics

Here are 4 tips to follow when replacing starters and alternators.

Talking To Customers About Oxygen Sensors

One of the toughest components to sell as a maintenance item, or even a replacement item, is an oxygen sensor.

Replacement Parts Quality – Better Than Ever

Despite what some people may believe, high-quality replacement parts are more common than ever.

Servicing Fuel Level Sensors: Fuel Gauge Inoperative?

Do not remove the fuel level sensor from the fuel module unless you get a faulty reading during the testing of the sensor.

Ford Grinding Or Rattling Sound From The Transmission

Ford 2018-2019 F-150 with the 5.0L Engines may be experiencing a strange metallic grinding sound. Here’s the fix.

Nissan Code P0603 Stored For ECM Back Up Circuit

The P0603 code deals with battery issues such as low battery voltage, discharged battery or battery terminal disconnections.

Understanding Engine Control Module No Communication Issues

You plug in your diagnostic scanner or code reader, only to find out that you cannot communicate with the PCM. Bad PCM Right? Not necessarily!

Don’t Miss The October Digital Edition of ShopOwner

Technical articles and links to other industry training resources are included at no cost.