The single most important safety feature in your Toyota 4Runner is a good set of brakes. If your brake pedal is going to the floor, it indicates that there is a serious problem in the braking system. When the pedal goes to the floor, it’s usually caused by a bad master cylinder, leaking brakes, bad … Read more
One of the most common automatic transmission problems is shifting hard. If your Toyota 4Runner has a hard shifting transmission, it can be uncomfortable to drive and a sign of serious problems. If your vehicle’s transmission is shifting hard, it can cause a harsh ride and lead to potential damage over time. Numerous factors can … Read more
Rotors are metal discs that are visible behind the 4Runner’s wheel. They work together with the calipers and brake pads to slow down your Toyota 4Runner. Due to braking friction, rotors have to withstand and dissipate a tremendous amount of heat. This causes the rotor surface to be uneven making the brake pedal feel … Read more
P0031 is a generic code, which means that it has the same meaning for the Toyota 4Runner as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue. Table of … Read more
While your Toyota 4Runner’s engine mounts can last the life of the entire vehicle, it is possible that they will go bad. Vibration and a clunking sound are the two most noticeable symptoms when driving the vehicle. There are plenty of visible signs as well. Engine mounts connect the engine to the frame of the … Read more
Your Toyota 4Runner’s ECM (Engine Control Module) is its brain. Just like a human’s brain, your 4Runner can’t function without it. It is sometimes referred to as the ECU or PCM. It’s all the same thing. The ECM controls and directs your entire drivetrain (unless there is a serrate transmission controller). When an ECM starts … Read more
P0354 is a generic OBD2 code that indicates that ignition coil “D” has an issue with the primary or secondary wiring circuits. If your Toyota 4Runner has thrown this code, it may be accompanied by P0304. P0354 is a relatively straightforward diagnosis and is typically caused by a bad coil pack or wiring harness issue, … Read more
P0353 is a generic OBD2 code that indicates that ignition coil “C” has an issue with the primary or secondary wiring circuits. It has the same meaning for the Toyota 4Runner as it would any other vehicle. It is typically caused by a bad coil pack or wiring harness issue, although there can be caused … Read more
P0352 is a generic OBD2 code, which means that it means the same thing for the Toyota 4Runner as it would any other vehicle. It indicates that ignition coil “B”has an issue with the primary or secondary wiring circuits associated with it. It is typically caused by a bad coil pack or wiring harness … Read more
P0351 is a generic OBD II trouble code, which means that it means the same thing for the Toyota 4Runner as it would any other vehicle. It indicates that ignition coil “A” is malfunctioning. It is typically caused by a bad coil pack or wiring harness issue, although there can be other causes as well. … Read more