Q: Can a bad alternator drain a battery

Hi. The first thing to do is check the codes stored in the engine computer (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection). If the engine is indeed misfiring, codes will be stored. The source of the misfire will need to be identified, possible faults include a...

Hi there. Sounds to me that you have a malfunctioning brake switch. This brake switch, over time can deteriorate causing it to not function properly. You can have a mechanic sent by YourMechanic diagnose your brake lights (https://www.yourmechanic.com/services/brake-light-is-not-working-inspection) to determine...

It's possible that there is damage that is unnoticed behind the wheel or something may be loose, which is causing the shaking while driving. It could also just be that a wheel weight fell off. Either way, I would recommend...

The sunroof (https://www.yourmechanic.com/article/3-essential-things-to-know-about-the-sun-roof-in-your-car) memory generally needs to be reset when the vehicle's battery is replaced or the car dies. To reset the sunroof, the open button should be held for 5 seconds until it opens all the way, and then...

Hi there. The issue could be with the output shaft speed sensor on the tail shaft of the transfer case. The output shaft speed sensor is a sensor the registers the speed of the output shaft and lets the computer...

The stalling you are describing probably stems from a fuel and/or ignition system fault although air induction could be an issue including the possibility of a large vacuum leak from, for example, a leaking brake booster. To see if it's...

Hi there. The engine could be stumbling for the coil pack or distributor may not be functioning correctly. As the coil pack or distributor gets old, the parts tend to become weak and is not able to send an electrical...

Hi there. Typically when the transmission will not shift out of first gear it is due to either an obstruction of transmission fluid in the hydraulic lines inside the transmission or a shift sensor / torque converter problem. If you...

The transmission has different clutch packs for different gears inside the transmission and you most likely have worn forward clutch packs. I would recommend having the transmission pressures checked and computer codes checked and also fluid checked for burned smell...