Q: Water in oil

Worn master cylinder seals can cause brake fluid to leak into the brake booster, damaging it. I'm guessing this is what happened to your truck. Replacing both the master cylinder (https://www.yourmechanic.com/services/brake-master-cylinder-replacement) and brake booster (https://www.yourmechanic.com/services/power-brake-booster-replacement) is the only way to...

The problems you are having may be due to a sticking throttle control, or possibly a transmission shifter control problem. These vehicles have an electronic throttle and if you try to push on the brakes and the throttle at the...

Hello. This can be caused by a number of things. I usually start by scanning the computer for codes to see what shows up. Most of the time, this is caused by a speed sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-wheel-speed-sensor) at one of the...

Hello. I do not know of any WCM module that will cause the engine to lock up. If the engine is locked up, then there is a mechanic failure in the engine. I usually try spinning the engine over by...

Hey there. You must have gotten the oil filter double gasket from the old gasket O-ring left on and put a new filter on, and it would not let the new filter seal. Remove the oil filter and check for...

An engine vibration can be caused by a few different components. You will want to start with the basics and that includes fuel, spark, and air. Check the spark plugs, wires, and distributor. These will all have a huge effect...

Hi there: We're not quite certain what you're asking; however, the P0255 OBD-II trouble code (https://www.yourmechanic.com/article/p0255-obd-ii-trouble-code-injection-pump-fuel-metering-control-a-intermittent-cam-rotor-injector-by-valerie-johnston) is typically triggered by dirty fuel filter, clogged fuel filter, defective fuel pump or open electrical connectors or sensors. The best way to have...

Hi there. Your vehicle has CV shafts that drive the wheels. A howling noise is more of a wheel bearing grinding sound. Raise up the vehicle and rotate all 4 wheels and listen to there sounds. If a wheel is...

If you have a valve cover leaking oil onto the spark plugs then it can cause a misfire. This does not mean the leaks are the cause but a possible cause. I would recommend having a mechanic like one from...