Underhood Service: Cars, Light Truck Magazine

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Top Five Brake Tips (VIDEO)
Air Compressors for Shocks (VIDEO)
High-Quality Ignition Coils (VIDEO)
Variable Valve Timing Systems (VIDEO)
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How AI Can Give Your Shop an Advantage
Handling Tomorrow’s Tech Shortage With Today’s Technology
The Striking Point Podcast: Getting Prepared for EVs
Working With Your Family
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Latest Digital Issue

May 2023

From the May 2023 Issue

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Each issue includes technical content from Underhood Service and other ShopOwner channels.

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.

Compressor Oil for R1234yf

Working on R-1234yf systems is not that different from the R-134a variety.

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