Diesel Service & Repair

Engine Diagnostic Services

Is your vehicle running bad or stalling? Is your check engine light on? The issue could be as simple as a loose gas cap or as complex as internal engine repair. Either way, Pep Boys can help. Pairing up state of the art equipment with our professional certified technicians, gives us the ability to diagnose the concern and determine what repairs are needed to get you safely back on the road.

Why a diagnostic charge?

Many people believe that their car can be connected to a diagnostic machine and it will tell us what is wrong with the vehicle. This is not entirely true. In reality, we have a variety of diagnostic equipment that communicate with the computers on your vehicle. This provides us valuable data to guide us through the diagnostic process. Unfortunately, many times the data is vague or generic. On 1996 and later vehicles, the vehicles on board computer can provide significant amounts of data, but not definitive answers. On 1995 and earlier, there is very limited data making it more labor intensive to figure out what is wrong.

A thorough diagnostic process involves a variety of procedures. Generally, the first step is to connect the diagnostic scanner to the vehicle and check for any malfunction codes. The mechanic can also look at data streaming in real time from the vehicles computer. When there is a trouble code stored it typically indicates what area or system is malfunctioning. Using this information our mechanics can put their training, experience and trouble shooting skills to work and properly identify the cause of the malfunction and recommend the best, most effective way to correct it. This is done by following diagnostic trouble shooting flow charts. These charts indicate which tests should be performed, and the results will indicate if additional tests are needed. Some of these charts are short, others are several pages. The mechanics knowledge and experience guide him where to begin in the troubleshooting process. Below are some examples of some of the procedures that would be used in the diagnostic process.

Contact Us

Come In For Servicing Today!

Phone: (480) 313-7374
Email: joemartin460@gmail.com
Address: 505 W 8th Ave
Mesa, AZ 85210