Q: My speed odometer don't work on a 2015 Honda Sonata

These sound like the symptoms of an alternator failure. The alternator can cause all sorts of weird electrical symptoms if it has gone bad. While the battery is responsible for starting the vehicle, the alternator's job is to charge the...

Neither of these issues should cause you to fail a smog test. Smog test look at your cars emission output. The radiator might be leaking and need to be repaired but it has nothing to do with your emissions. The...

It's not at all likely that you damaged the transmission as long as it wasn't started. Technically, you can put the CVT fluid back in, but it needs to be done from the same hole it was drained from. This...

Hello, thanks for writing in. Having lifters and valves replaced is best left to the professionals. Many times this can involve removing the cylinder head from the engine which will have an affect on the timing. Special procedures need to...

Hey there. This piece is called the wiper arm. They can be purchased from most auto parts stores. If you need to have a wiper arm replacement (https://www.yourmechanic.com/services/windshield-wiper-arm-replacement) taken care of for you, a qualified technician from YourMechanic can come...

Hello - from your description, it sounds like the left (driver) side CV joint and axle (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cv-boot) are bad as well, and should be replaced. The outer CV joints take a beating while turning and applying power. It is possible...

Hi there. If you recently replaced your battery, but the vehicle won't start unless you "bump start", it's possible that your battery cables are damaged. Once the motor starts, power to all components is supplied by the alternator. I'd have...

Hi There, The air box resonator missing should not impact the running condition of your vehicle at all. If the air box had cracks in it, this may have caused excess air to be injected into the intake system which...

Hi There, This may be related to a faulty transmission control solenoid. since automatic transmissions use pressurized hydraulic fluid to change gears, every time a gear change is required, the car's computer activates a transmission solenoid, which directs transmission fluid...