When your vehicle loses power, runs rough, stalls, uses more fuel than usual, or turns on the Check Engine Light, finding the cause starts with proper testing. At our 2406 Post Road location, our technicians use professional diagnostic equipment and proven procedures to identify what’s actually causing the problem. We’ll explain what we find, advise you on the repairs that are needed, and help get your vehicle running properly again.
Schedule Engine Diagnostics
At our 2406 Post Road location, engine diagnostics start with a focused evaluation of your vehicle’s symptoms and available data. Our technicians use professional scan tools, factory information, and proven testing procedures to determine the best path toward identifying the problem. If deeper testing is necessary, we’ll explain what needs to be tested and why before proceeding.








Today’s vehicles rely on interconnected computer, sensor, and electrical systems, which means a warning light doesn’t always point directly to the problem. At our 2406 Post Road location, we use professional diagnostic equipment and systematic testing to determine what’s actually causing the concern so you can make an informed repair decision.
We diagnose the cause of check engine lights, fault codes, and warning messages instead of simply clearing the light.
Misfires aren't always caused by spark plugs. We diagnose ignition, fuel, compression, and control system issues to pinpoint the source of the problem.
We use professional smoke-testing equipment to locate EVAP leaks quickly and accurately, helping eliminate recurring check engine lights and failed emissions tests.
Faulty sensors, wiring, connectors, and electrical circuits can trigger warning lights and drivability problems. We test the system to identify the true cause.
Fuel delivery, airflow, and emissions problems can affect performance, fuel economy, and drivability. We perform accurate testing before replacing components.
Using professional Snap-on® and TOPDON® diagnostic equipment, we access manufacturer data, perform bidirectional testing, and pinpoint problems with accuracy.
Warning lights, strange noises, poor performance, or an engine that just doesn’t feel right? Primary Care Auto uses professional diagnostics to pinpoint the problem and help you make the right repair decision.