Engine Service Archives - UnderhoodService
Forcing OBD II Vehicle Emission Monitors

Some vehicles have readiness issues when it comes to setting all the OBD II monitors.

Valve Lifter Technology

Hydraulic lifters are precision-fit assemblies.

Diesel Air Filter Replacement

Here are some diesel air filter replacement tips in order to keep these vehicles running as intended.

Cabin Air Filter Replacement

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

Selling Underhood Parts for Hybrids

Anything that can happen to an ICE in a standard vehicle can happen in a hybrid.

HV/EV Battery Pack Replacements

It is difficult to say when a battery pack will need to be replaced.

Warn Your Customers About Water Pump Failure During the Summer

Summer is an opportune time for automotive professionals to remind customers to keep an eye on the signs of a failing water pump.  As you know, extreme summer temperatures and added strain on vehicles from activities like long road trips can cause engines to become more susceptible to troubles from excessive heat, making the function

Diagnosing Driveability Problems

Understanding what comes out through the exhaust valve is critical to solving any emissions or driveability problem.

Variable Valve Timing Strategy

Your diagnostic strategy needs to first focus on the supply of oil and then move outward to other possible problems.

Lisle’s Camshaft Tool Locks Cams in Place

Use the tool to accurately line up and hold cams for proper timing chain alignment on Honda K-Series engines.

VIDEO: Hot Or Cold Spark Plug Torque

We discuss how and when spark plugs should be installed. This video is sponsored by Autolite.

10 Tips For Serpentine Belt System Inspection And Service

The serpentine belt is part of a system and is not the only component susceptible to wear. The tensioner, idler pulley and, on some vehicles, the decoupler pulley all wear over time and need periodic inspection and replacement. If you are replacing just the belt without looking at the other components, you could be sending a new belt to a premature death.