Diagnostics and Drivability

Figure 1- A great first step in any driveability analysis, the relative compression test shows how all cylinders harness and squeeze their contents, relative to each other. This capture shows all cylinders performing similarly.
Service Repair

Ram 1500: Driveability can be exhausting

Nov. 21, 2024
Welcome back to another edition of “The data doesn’t lie,” a regular feature in which Brandon Steckler, technical editor for Motor Age, poses a puzzling case study.
Photo courtesy of Scott Brown
Figure 1 – Tesla Service Mode heat pump visualization
Diagnostics and Drivability

Tesla service, repair, and diagnostics

Oct. 8, 2024
Keep up to date on how to maintain your customer's Tesla vehicles.
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Diagnostics and Drivability

Top 10 diagnostic products: Q3 2024

Oct. 3, 2024
Check out the most clicked-on diagnostic products added to Vehicle Service Pros in the last three months.
Scott Becker
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Service Repair

Steve Mancuso named Best Young Tech of 2024

Oct. 1, 2024
The award winner is a problem solver, and not just when he's working on vehicles. Steve Mancuso tackles equipment and training, too, and serves as a mentor to his fellow techs...
Figure 1: The relative compression test is featured frequently in the pages of Motor Age magazine as it is a very efficient test that yields a lot of information about engine mechanical integrity.
Diagnostics and Drivability

Compression testing a Ford F-150

Sept. 12, 2024
Cylinder integrity refers to its ability to harness its contents. But if it won’t fill, is there really anything to squeeze?
Photo courtesy of Rick Urso
Digital inspection tools allow technicians to complete jobs quicker and more efficiently.
The Garage

The benefits of digital inspection tools

Sept. 10, 2024
A good diagnostic tool arsenal should help you complete jobs faster and more efficiently.
Photo courtesy of Scott Brown
Diagnostics and Drivability

The impact of electric vehicles on the automotive market

Aug. 28, 2024
Steps to help prepare your shop for electric vehicles.
Clay Cowell
Service Repair

Why this Ford F-150 won't start

Aug. 1, 2024
Many times driveability symptoms surface without associated DTCs.
Chris Martino
Service Repair

Why it's important to build and trust your diagnostic process

Aug. 1, 2024
The story of a 2018 Land Rover Discovery, an engine rebuild, and a lingering list of diagnostic questions to solve.
Tire Rack
Service Repair

Tire match mounting tips

Aug. 1, 2024
Tire-to-wheel match mounting is an effort to minimize the effects of either imbalance or radial force variation (RFV).
Brandon Steckler
Diagnostics and Drivability

Powerstroke Engine Choked Under Pressure

July 18, 2024
The in-cylinder compression waveform is an easy way to see engine-mechanical faults without disassembly. But what if the breathing issue isn’t an engine issue at all?
Brandon Steckler
Diagnostics and Drivability

Solved: A Mazda 6 that underperforms

July 17, 2024
This 2006 Mazda 6 idled just fine, but the 2.3L turbo engine barely performed and exhibited poor power output under cruise and acceleration. The same DTC seemed to show up, but...
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Diagnostics and Drivability

Top 10 diagnostic products: Q2 2024

July 1, 2024
Check out the most clicked-on diagnostic products added to Vehicle Service Pros in the last three months.
Diagnostics and Drivability

2024 Scan Tool Spec Guide

A comparative list of functions and features for a large selection of aftermarket scan tools.