Q: My car has been overheating and now I see a crack where the radiator cap is

These engines and the year you have has had issues with the cooling fan switch in the radiator. The thermo switch may have an intermittent problem that lets the engine get too hot and this could cause the manifold to...

Hello there, an intermittent car dying issue like you have described is an unusual case. A variety of faults can cause the car to die in this manner such as the fuel pump (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pump), battery (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-battery), wiring, battery cable (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-battery-cable),...

Hey there. Sorry to hear about your issue with your 87 Acura Legend. That loud clicking noise on the right side of the motor is typically an indication of a broken or lose fitting wire on the starter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-starter). A...

Well, first I hope you're not actually driving 120 mph in your 2004 Toyota Camry. Most engine shaking issues while under acceleration are caused by loose motor mounts (https://www.yourmechanic.com/services/engine-mount-replacement) or stabilizer bar bushings (https://www.yourmechanic.com/services/stabilizer-bar-bushings-replacement). It can also be caused by...

The color of the smoke can point us in the right direction of the problem. Blue or purple smoke indicates oil burning in the combustion chamber and can be caused my weak piston rings, worn valve seals or a malfunctioning...

Hello there. No start faults are common issues on older vehicles such as your 1994 BMW 318is. There are a variety of causes for a no start condition. The most likely are the starter (https://www.yourmechanic.com/services/starter-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), ignition switch (https://www.yourmechanic.com/services/ignition-switch-replacement),...

Misfires are caused by lack of fuel or the ignition system isn't providing the needed spark. At least these are the most common single cylinder failures. It is possible, all be it remotely, that you have a compression problem, but...

Hello. If the knocking only occurs when the vehicle is moving then you either have an engine mount issue or a suspension problem. A knocking is usually the result of bad starts, a loose ball joint, or a bad bushing....

Reverse polarity, at the battery, in a 12 volt electrical system on a car can cause a variety of effects including damaging the alternator, diodes and the numerous microprocessors on a vehicle such as those in the powertrain control module...