customer service Archives - Page 2 of 10 - UnderhoodService
Ignition System Do’s and Don’ts

Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.

Chrysler’s Totally Integrated Power Module

The TIPM is on the CAN bus, any issues with the communication between the ECM, ABS and BCM can cause problems with the TIPM.

Timeless Quotes Teach & Inspire

Here are six quotes that every future shop owner should live by.

High Pressure Direct Injection Fuel Systems

The main destroyer of high-pressure fuel pumps is a lack of oil changes.

Batteries For Stop/Start Systems

On all stop/start vehicles, the life and performance of the battery are measured by the vehicle in several ways.

The January Digital Edition Is Available Today

Each issue includes technical content from Underhood Service.

EV Opportunities

You are gaining and retaining many service opportunities with Evs.

EV Charging

Charging will get better as technology improves and drivers change their behaviors.

Cabin Air Filter Replacement

There are three major reasons to replace a cabin air filter in the winter.

A/C System Manifold Gauges

A basic gauge set will have three basic components.

The December Digital Edition Is Available Today

Each issue includes technical content from Underhood Service.

HVAC Diagnostics

Knowing the cause of the complaint might require looking at several components.