Q: Silverado only turn on when I press brakes

The Check Engine Light on with the speedometer not working may be an indication of a failed VSS (Vehicle Speed Sensor). Fault codes should be read out of the engine computer, and if there is a fault for the VSS,...

It depends on how fast it is leaking and what fluid is leaking. It could be power-steering fluid. If it's leaking a little power-steering fluid, it can be so expensive to fix, but you can choose to either have the...

No, it is not the catalyst. The P0139 code (https://www.yourmechanic.com/article/p0139-obd-ii-trouble-code-o2-sensor-circuit-slow-response-bank-1-sensor-2) is for the O2 sensor before the catalyst. The code is illuminated when the engine control module is testing the O2 sensor and it cuts the fuel to see if...

High engine idle can result from things like vacuum leaks, a dirty or faulty idle air control valve or potentially an improperly adjusted throttle stop. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) reads the air intake as it is mixed with...

If you had where the brake pedal went to the floor on you and there is no loss of brake fluid then this would only be caused by the brake master cylinder internal leakage. You will need to have the...

Hi there. Take a compression gauge and put it into the spark plug holes and remove all the other spark plugs. Then disable the ignition power to the coils. Then crank the engine over with the throttle open all the...

Your car has an electronically controlled transmission. If the controller sees a failure in any of the components, it will go into limp home mode to enable you to continue to drive the car but it will not work as...

This circumstance is not unusual and I suspect is often related to the use of non-OEM rotors and non-OEM brake pad material and also the failure to re-apply factory specified shims and/or appropriate anti-squeal compounds and lubricants. Unfortunately, once non-OEM...

You may have two different problems or the a/c control switch went bad. The blower since it has power then the blower resistor or blower switch may be bad. For the compressor not coming on you would need to have...