Underhood Automotive
GM Engine Noises During Cold Start, Warm Engine Operation

The new Small Block Generation 5 engine family incorporates a new fuel system technology known as direct injection (DI).

Power Steering Service Tips

Examining the fluids from the power steering system can assist in diagnosing other component issues.

Street Performance Cylinder Heads: Selection Guidelines

Price, performance and availability are all important considerations in the head selection process.

Keeping An Eye On Cooling Systems

OEMs are carefully scrutinizing and squeezing every engine component for maximum efficiency.

Talking Gaskets And Seals With The Pros

A great deal of gasket and seal development starts with the research and chemistry of the materials.

Nissan Frontier: Finding Failures, Faults

Nissan uses two accelerator pedal position (APP) sensors to transmit a throttle position command.

Solving 2014 Toyota Tacoma Cooling System Sensor Codes

The test monitor reads all relevant serial data parameters passing through the ECM.

Chrysler’s Totally Integrated Power Module Simplifies Circuits

The symptoms of a failing TIPM can vary depending on the vehicle. Check out your options for this repair.

Accommodating Head Lift

As engine manufacturers strive to increase fuel economy, we’ve seen significant lightening of both block and head castings.

Hot Engines For TV

Rawlings, owner of Gas Monkey Garage and host of Fast N’ Loud, was given the opportunity to build a replica 1968 Corvette.

The Evolution Of MLS Gaskets

The first production vehicle to use an MLS gasket was a tiny Isuzu car in Japan.

Are Recycled Oils Safe To Use In Your Engine?

After being used, oil isn’t just tossed into a giant oil-specific wastebasket. Rather, oil is recycled, or re-refined.