Q: I've changed my a/c control panel,fuses, and relay switch.... blower mother is blowing but compressor isn't coming on...

Hello, a coolant leak with no external leaks leads me to believe you might have an internal leak at the head gasket. The first thing to do would be to check the oil and see if it looks like chocolate...

I would still look at the battery and see if the cables are corroded. I recommend having a technician come inspect your vehicle (https://www.yourmechanic.com/services/car-is-not-starting-inspection) and clean the battery terminals and check voltages from the switch. If the battery is OK,...

When your engine is idling, the vehicle is likely stopped which lowers the airflow through the radiator. The more airflow the radiator receives the more likely the engine is to remain cool. When the air conditioning is turned on the...

I would first check to see if your Check Engine Light is illuminated. If so, there are likely trouble codes that have been stored in your vehicle's PCM that may indicate what the problem is. In order to pull these...

Hi there. From the description you have provided it sounds like it could be, the electric power steering motor (https://www.yourmechanic.com/services/electrical-components-are-not-working-inspection) has failed. It could also be, an electrical power or ground failure (https://www.yourmechanic.com/services/electric-problems-inspection) to the power steering motor. I recommend...

Hello there, a variety of faults will cause your 1999 Mercedes ML430 to not shift out of first gear. The first step in any transmission or shifting issue is to check the transmission fluid level, condition, and color. After the...

Hi there. Look at the engine and try to locate where the fluid is coming out of. Most likely the coolant is leaking out of a heater hose next to the engine by the firewall. If the hoses are good...

Oil smoke is white with a bluish tint. It also has a distinctive oily smell. Burning coolant is white, and has a very sharp, acrid smell and will burn your eyes and nose. If you can warm the car up...

The warning light refers to the electronic throttle control system. An advanced scanner would reveal some diagnostic clues, if any codes were stored. With regard to this model, reported fixes have included replacing the thermostat (the thermostat is electrically "linked"...