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ML320

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Question
Had crankshaft sensor replaced, and car is still stalling when slowing down.
Hello, thanks for writing in. If the engine is only stalling when coming to a stop, then it may be a defective crankshaft sensor that was installed or commonly this is caused by a dirty or failing throttle body. I...
Question
Car does not turn on
Hi there. Assuming this is a standard type ignition switch, with the description of events you provided. I am concerned that the tumblers in the lock cylinder may have been damaged, when the half key was turned. The key turning...
Question
Something locked up the wheels
Hello. I would recommend having your suspension and brakes checked. This will include removing the front wheels. With the wheel removed, it will be much easier to determine what the actual cause of the lockup is. The lockup may have...
Question
Mercedes ml320 2001 only go in reverse we checked the fluid its fine it all of a sudden start doing this with no indication of tra
Hello. When this occurs all of a sudden I would usually start by checking the transmission control module for codes. This would let me know if there are any foreseen electrical issues. If there are no codes then the fluid...
Question
Egrcode multiple cylinders misfire
The most likely issue in this situation is with the EGR valve. Problems with the EGR system can lead to misfires. The exact problem with the EGR will need to be diagnosed with some further testing. The EGR valve itself...
Question
EGG code p0400, multiple cylinder misfire, removed and cleaned egr and pipe with no change
Hi there. The P0400 EGR (exhaust gas recirculation) valve code may not be a valve not working. This code description is a EGR flow malfunction. The fact that your vehicle has multiple cylinder misfires leads me to believe the valve...
Question
My ignition and steering wheel got locked. After getting it unlocked, it wont start. System is saying start then an error shows.
Hi there. If you're having problems with the steering wheel and ignition cylinder being locked and the vehicle is having issues starting, the problem may be with the ignition lock cylinder. Sometimes the components inside the ignition lock cylinder can...
Question
wont start
It sounds to me like you could have an issue with your ignition switch. I would recommend having your ignition switch tested by a qualfied professional to determine if it is working properly. The ignition switch is what causes your...
Question
Hi, about how much is it to fix a gas leak from a fuel line.
Billing question sent to CS about repair cost for a fuel leak as fuel is being poured in.
Question
Radio plug cut
Hello there, a cut plug for the radio of your 2001 Mercedes ML320 is a large problem. The radio plugs are most often cut when an aftermarket radio and speakers are installed. With wiring that has been damaged or cut...
Question
My power steering is malfunctioning
Hello, thank you for writing in. The vehicle may need a series of tests at this point. With no diagnostic codes to assist us in diagnostics, the power steering system components will need to be tested individually. When you refer...
Question
My car won't go over 20 mph. It will start to shake vigorously once it hits 20 mph
Hello. When an issue like this turns up with this many codes I usually start by checking the fuel pressure. If the fuel pump is failing and not creating the right pressure then you will get multiple misfires. If the...
Question
When driving uphill the vehicle looses most of power,only goes 25 miles per hour,then shakes when restarting
Lack of power and shaking can be caused by a number of components. Misfiring can reduce power and cause shakes. Misfires can be ignition related like from bad spark plugs or ignition coils. Also from sensors such as the crankshaft...
Question
Crank sensor was replaced and car still stalling 2002 Mercedes ML320
Hello - if replacing the crankshaft position sensor (CPS) recently was done in response to a "stalling when slowing down problem", I would have a diagnostic check done first before performing other maintenance. Replacing the CPS could have been an...
Question
What is cause of yaw sensor malfunction
I'll agree with the shop on this one. The yaw sensor is a very sensitive device designed to measure the sideways force on a car during a turn and it's part of the Vehicle Stabilization System. It has a small...
Question
The AC compressor on my 1999 ML320 stopped working.
In most cases, it may be the a/c compressor clutch that has stopped working, but it won't hurt to check the fuses. If you do find a blown fuse, something happened along the electrical circuit that drew a higher current...
Question
Check Engine Light is on
Your check engine light may come on for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or wires and many other reasons. Unfortunately due to the...
Question
PO400 code came up with multiple cylinder misfires. I replaced the EGR solenoid, all the vacuum lines, cleaned the EGR pipe and passage. Still have the same problem.
Hi there. After having the EGR (engine gas recirculation) valve replaced, the vacuum lines replaced, and the tubes cleaned out, then there could be an electrical issue with the EGR system. Check the EGR harness with a digital meter and...
Question
SUV will not accelerate sporadically and has no power
Hi there: To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you're describing, ranging from something simple like a crankshaft position sensor to the throttle position sensor or complex issues with...
Question
The engine will not turn over. The battery and fuses are okay.
Hi and thanks for contacting Your Mechanic. Since the problem started when you had replaced the battery, check the wires to the battery and make sure that they are not corroded. Also, check the battery cables for they are on...

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