Vehicle Modifications: They Can Create Diagnostic Challenges

Vehicle modifications can create some interesting challenges for a technician. The first step in the diagnostic process is a discussion with the vehicle owner, and if possible, have them accompany you on a road test. Always perform the basic diagnostic steps first. Determine if any modifications have been made to the vehicle. With today’s technology and vehicle design, it is not uncommon to introduce a problem with the addition of an accessory or device. Let’s consider some examples that can lead to some difficult and elusive symptoms.

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