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The crankshaft position sensor is almost always located very near or right behind the crankshaft pulley. This is due to the fact that the crank pulley is the only place outside of the engine that is connected to the crankshaft...
Hi there. I would need to know if, when it will not start, the engine cranks over or you get nothing. If it will not even crank over, then most of the time this is caused by a failing starter....
Stalling and rough idling are usually an indication that the motor is not able to adjust to varying loads. The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is proportional to the amount of vacuum...
Hello - oil is leaking from the valve cover, down into the spark plug recesses as you noticed. This causes the spark plugs to short, creating the misfire you have experienced. No doubt some of this oil leaked into the...
A fault code p0304 is typically caused by a faulty plug or a failed ignition coil. If it has been quite a while since there has been a tune up done, I would start there. Many times a misfire can...
Hello, This may be a sign of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates...
Hi There, This may be a result of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has...
Hi there. Typically the Chevrolet unique code of C0040 is an indicator of an ABS sensor or module problem. You might want to review this video (https://www.youtube.com/watch?v=nachBPzhbvY) on how many mechanics diagnose the source of this issue and resolve it...
Hi there - overheating is caused by the inability of the cooling system to deal with the heat generated by the engine. The engine itself can overheat from a stuck (closed) thermostat, or a blown head gasket (which effectively "superheats"...
When When you buy a truck – even a half-ton truck like a GMC Sierra 1500 – you expect to make a trade-off between hauling capacity and fuel efficiency, right? Well, the designers and engineers at GMC don’t think that...
Drivers Drivers in the market for a used GMC vehicle may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to learn...