Hi there. A lack of fuel will definitely cause your vehicle to sputter. There may be an obstruction in your fuel lines or fuel filter causing this. I recommend having a mechanic, such as one from YourMechanic, check your fuel...
Hello! There are several reasons a new battery will become bad in a short time. A faulty alternator may not be properly charging the battery and will shorten battery life. There could also be a parasitic draw in your system...
This could be related to a couple of possibilities. The [instrument voltage regulator]((https://www.yourmechanic.com/services/instrument-voltage-regulator-replacement) regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the gauges in your dash to...
Hi, the blue-grey smoke you mention is your engine burning oil, probably due to worn piston rings or valve guides and seals. This is expected from an engine with 300K miles on it. Unfortunately for you, California has pretty stringent...
A misfire can be caused by a lot of things, from a worn spark plug to an internal engine problem. The first step is to retrieve the diagnostic codes associated with the check engine light. These codes will provide a...
Without being able to hear the exact trunk and engine noises it will be difficult to give you an exact diagnosis. In the trunk, make sure there are no free objects floating around the trunk compartment, common items are the...
When shuffle mode is turned on, your vehicle will play the CD tracks in random order. To turn on shuffle, press the RDM button, depending on your sound system model. To turn off shuffle mode, press the button a second...
Prior to performing diagnostics be sure you have a fully charged battery that passes a load test. Then, confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting. To temporarily override the immobilizer...
Hi there. Excessive smoke can indicate some serious issues. The first thing to do is to determine the type of smoke that is emitted. A whitish smoke would indicate engine coolant entering into the combustion chamber. This can cause rough...
Hello. If you believe that a fuel injector is leaking, the vehicle should not be driven and repaired as soon as possible since fuel is flammable. You should get the aid of a mechanic to perform an inspection to determine...
Hi. Your windshield wipers are supposed to work together as they have a mechanical connection to the wiper motor. If only one of the wiper arms is not moving, then you have a disconnected wiper. Under the front windshield trim...
It sounds like there is a problem with your door latch. The door locks are tied into the door latch so that explains why your door does not want to shut properly and your power locks are jamming up. I...
Hi there. Your ABS system should keep the brake from locking up if it is working properly. With that being said, you may get different wheels braking at different times if the ABS unit sees the need to cycle the...
Engine coolant has a very distinct smell when it burns, a sweet candy like smell. If your coolant levels in the radiator aren't dropping, a leak can be ruled out. If the level is low, that means you are either leaking,...
Is the ignition key hard to turn and binds in the ignition or are you having a no start problem? The ignition lock cylinder would need to be looked at first to see if it is the cause of your...
Hi Adam. Thanks for the question today. I believe Mercedes-Benz recommends swapping the headlamp housing when converting to LED bulbs on their C300. However, you might want to contact an MB dealership to get clarification from them, as I believe...
I would agree with that mechanic, but it could also be low on coolant. I would check the level make sure its full, and then start it up, have a certified mechanic such as one from YourMechanic, feel the upper...
The vehicle speed sensor (VSS) is the most likely cause of your inoperative speedometer. The powertrain control module (PCM) uses the VSS signal to determine the control of outputs such as speedometer operation. The VSS circuit or speedometer gauge could...
The problem with swapping engines is that these type of fitting issues tend to happen more often than not. In most cases, the flywheel is not properly aligned with the starter or transmission; causing the starter to not engage correctly....
The internal trunk release is a safety feature that allows people trapped in the trunk to safely exit. If you are ever trapped in the trunk, simply pull down on the trunk release lever, which hangs from the inside of...
Hi there. Sounds like the dealership technician may have removed some vacuum lines to get to the rear main seal and may have not put them back on. Check the back of the engine to see if any vacuum lines...
The information provided for your Mercury is a bit limited, however, I can attempt to point you in the right direction. I assume we are talking about electrical power as you have questioned the alternator. The alternators job is to...
When your vehicle has been disconnected from its power Source (for instance when the battery dies or is replaced), then the audio system will need to be reactivated. Here’s how to reactivate the system: 1. Turn the ignition to On....
Hi. There are only a few reasons why your key will not turn. Most of the time it is because the steering wheel is locked in one direction putting pressure on the key lock cylinder, or the cylinder is not...
There are many possibilities that could cause your concern. The most likely cause would be one of the engine sensors not reading correctly. If the computer isn't getting the right info the engine may not be able to continue running...
