Practical automotive articles on maintenance, diagnostics, vehicle systems, buying used cars, tires and electric driving.
A Group 26R battery is a BCI size 26 case with reversed terminal positions. Here is what that means for fit, why a standard 26 may not work, and how to confirm the right battery for your vehicle.
How to tell whether the Interstate 31-MHD Group 31 heavy-duty battery suits your truck, equipment or boat, and which specifications to confirm before buying.
Systems
What code P1101 means on a Chevy Malibu, which intake airflow faults commonly set it, and the checks to make before replacing any parts.
Systems
Which transmission fluid does a Volvo S60 need? Why the answer depends on generation, model year and gearbox, and how to confirm the correct fluid for your car.
Systems
Many semi trucks use drum brakes with shoes, not pads. Learn how to confirm your truck has air disc brakes and how to identify compatible pads by caliper and axle.
Systems
Looking for a Group 24F battery at AutoZone or Menards? Learn what 24F means, which details to confirm for your vehicle, and what to check before you buy.
What engine code P2099 means, why bank 2 may be flagged as running rich after the catalytic converter, what to check in order, and when to stop driving or see a professional.
Systems
Which oil goes in a Volvo Penta outdrive? Why the answer depends on drive model and serial number, where to confirm the specification, and what milky oil means.
Systems
How to troubleshoot a failing EGR valve: separate symptoms from causes, read EGR fault codes in context and run checks in an order that points to the real fault.
Systems
What replacing a brake proportioning valve involves, how to confirm your vehicle has one, the general procedure, and the vehicle-specific details you need first.
Systems
How to tell which brake pressure switch your vehicle uses, whether replacing it opens the hydraulic system, and when bleeding or scan-tool calibration is needed.
Systems
What engine code P0008 means, its likely causes, the checks that separate them, and when to stop driving or get a professional diagnosis.
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