Maintenance
Toyota Transmission Fluid Guide: WS vs Type T-IV and Tacoma, Tundra Fitment
How Toyota ATF WS and Type T-IV differ, which Tacoma and Tundra transmissions call for each, and what a sealed-transmission level check really involves.
Car blog Page 1291
Practical automotive articles on maintenance, diagnostics, vehicle systems, buying used cars, tires and electric driving.
Maintenance
Systems
Oil Pressure Sensor, Switch and Sending Unit: How They Work and Failure Symptoms
Learn how oil pressure sensors, switches and sending units differ, what a failing unit looks like, why they leak, and when a mechanical pressure test is needed.
Troubleshooting
P0442 and P0456 Codes: EVAP Small and Very Small Leak Detected, Symptoms and Fixes
What P0442 and P0456 EVAP leak codes mean, why tiny leaks are hard to locate, likely symptoms, common leak sources, how smoke testing finds them, and repair options.
Systems
What Is an EGR Valve and What Does It Do? A Beginner's Guide to Exhaust Gas Recirculation
Learn what an EGR valve is, why engines recirculate exhaust to cut NOx, how the valve opens and closes, what it looks like, and how it differs from a purge valve.
Ownership
Brake Fluid Flush and Change Cost: What Shops Charge and What Drives the Price
What a brake fluid flush or change typically costs, what the service includes, and which vehicle, fluid and labor factors push the bill up or down.
Maintenance
Oxygen Sensor Socket and Wrench Size: Which Tool Do You Need?
Learn the standard 7/8 in / 22 mm oxygen sensor socket size, when a slotted socket, offset wrench or crowfoot fits best, plus thread chaser and anti-seize basics.
Systems
ABS Light On: What It Means and Whether It Is Safe to Keep Driving
What the ABS warning light means, how it differs from the red brake light, what changes when anti-lock braking is off, and how long you can reasonably keep driving.
Troubleshooting
ABS Light On: What the Warning Means and Why It Stays On
Learn what the ABS warning light means, when it normally appears, and the sensor, wiring, fluid, fuse and module issues that keep it on, plus how to narrow the cause.
Tires and wheels
How to Read Tire Size Numbers: Every Sidewall Code Explained
Learn how to read a tire size like P225/65R17: section width, aspect ratio, construction, rim diameter, load index and speed rating, with a labeled diagram.
Ownership
How Much Does a Car Battery Replacement Cost? Parts, Labor and Installer Options
Learn what drives car battery replacement cost, from battery type and group size to labor, mobile installers and core charges, and whether a cheap battery pays off.
Tires and wheels
How to Find Your Car's Tire Size: Sidewall, Door Jamb, Manual and VIN Lookup
Learn where to find your car's tire size on the sidewall, door placard, owner's manual or a VIN lookup, how to read the numbers, and what to do if the sizes differ.
Troubleshooting
Car AC Refrigerant Leak: Symptoms, Where Leaks Hide, and How They Are Repaired
How to recognize a car AC refrigerant leak, why the condenser and seals are common culprits, how dye and sniffer testing locate leaks, and what a proper repair involves.
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