Q: Crank sensor was replaced and car still stalling 2002 Mercedes ML320

You say the first engine overheated and the head gasket was replaced. I assume the thermostat was the cause. Depending on how hot the engine got before blowing the head gasket, it must of weakened the engine block so that...

Hello, if you don't see any exterior leaks, then you most likely have a blown head gasket. Pull your engine oil dipstick and see if it looks like oil or chocolate milk. If it looks like chocolate milk the gasket...

I would definitely recommend replacing the resistor (https://www.yourmechanic.com/services/cooling-fan-resistor-replacement) if it looks rusty as this can cause corrosion leading to faulty connections which will in turn interrupt the operation of the cooling fans. I would also suggest checking the power continuity...

The P0101 code (https://www.yourmechanic.com/article/-p0101-obd-ii-trouble-code-mass-airflow-maf-circuit-operating-range-or-performance-problem-by-john-nelson) may be related to many other things aside from the mass air flow sensor such as: intake air leaks, dirty mass air filter, an open or shorted MAF sensor harness, or a poor connection involved with...

Depending on the terrain where you live, this may be a normal function of the engine (https://www.yourmechanic.com/services/engine-is-shaking-pulsating-or-vibrating-inspection) downshifting. The vehicle should accelerate slightly when this happens, or should up under an increased load of some kind. With the age of...

Hey there. If the motor will only start with the use of starting fluid, this suggests you may have a fuel supply problem such as faulty or dirty fuel injectors (https://www.yourmechanic.com/services/fuel-injector-replacement). If you have replaced the fuel pump and fuel...

Conventional, mineral-based engine oil and synthetic engine oils are completely miscible and thus you can top off with either. Your oil consumption is relatively high. There is a wide range of values for the "normal" or average rate of oil...

Check the harness to the crankshaft position sensor as it is has a fused wire completing the circuit. When unplugging the sensor, the engine should not start at all. The only thing that can cause the engine to start with...

Hi - the # of miles between oil and filter changes (https://www.yourmechanic.com/article/why-do-cars-have-different-oil-change-intervals) is perhaps the 2nd longest running discussion since someone said "My car is faster than your car!". Driving conditions: clean air/dusty, freeway/city stop-and-go, long drives vs 3 minute...