You need to have computer tested to see if you have misfire codes and may have got oil onto one or more of the spark plugs and coils causing the misfire. The A/C will not work normally since the computer...
Hello, thank you for writing in. When a vehicle has alternator issues, the entire car is forced to run off of the battery. As you can imagine, this stresses out the battery and can cause it to prematurely fail. Start...
Hi there. What will help you the most is determining the nature of the failing behavior when the car shuts off. Does it have spark after it shuts off? After it shuts off (immediately after), if you spritz some starter...
Hi - you don't mention what software component of your vehicle needs updating (engine management, infortainment or navigation system, iDrive, etc.). In general, software updates need to be done by your BMW dealer or authorized service center with software update...
Hi - worn, damaged or "soft" control arm bushings will usually make themselves known as "loose" steering, requires more frequent or constant "corrections" from the steering wheel, abnormal tire wear, or the inability to get the front suspension aligned properly....
The underlying cause is most likely among these possibilities: 1) blocked oil passages due to sludge; 2) faulty wiring to the camshaft oil control valve; 3) a faulty camshaft oil control valve; or 4) faulty timing chain and/or camshaft phasers....
What you are describing sounds like a wheel bearing that may be starting to fail. A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface...
Hello. If your engine is not boosting properly then it may be related to the actuator. In most cases turbo wastegate actuators should be difficult to move by hand, as they are designed to open up as boost pressure increases....
If the suspension, alignment, or perhaps drive axle is damaged such that the engine becomes overloaded, the engine could overheat. Another possibility is an exhaust pipe was damaged creating a restriction. Normally, a collision won't cause any of the "typical"...
Hi. An engine that is not able to keep itself cool is at serious risk of significant damage. There is a good chance that the head gasket has been damaged as a result of overheating and should be replaced along...
When oil is actively hitting the ground in the amounts you have described there is a problem. The oiling system should be self contained and is not supposed to leak. It is possible that the leak wasn't apparent or the...
Hi there - the first rule of modifications is that when things stop working, you revert to the condition before the last change. In this case, remove power to the new stereo components, recheck your fuel fuses and the pump...
The heater in an oxygen sensor is used to get the oxygen sensor up to operating temperature quickly to allow the system to go into closed loop operation. The heater will only operate once per key operation, and only from...
Hi there. It seems that the security system has came on and lock out your vehicle from starting. If you open the door and the dome light comes on with a good solid light and the headlights work, then the...
If your engine has a misfire then that can occur for a number of reasons. If it suddenly occurred during a smog test then something may have been knocked loose during the inspection. It is not uncommon to have a...
If louder is your thing, you should talk to someone at a local exhaust shop. I bet they'll have some aftermarket exhaust options for you. Just keep in mind, you may be meeting more of your local law enforcement folks,...
The OBD system on your vehicle is a self-monitoring system. The Powertrain Control Module monitors and controls all of the systems and functions that regulate fuel, ignition, emissions, and engine cooling as well as having some minor control over air...
The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test be sure it is NOT a marginal pass in which case you...
Hello. The symptoms you are describing are commonly caused by air in the cooling system or a malfunctioning fan. If the system is properly filled and bled, then I would check the radiator fan switch or temperature sensor and fans....
The symptoms described for your Mazda indicate that you may indeed be dealing with a dead battery. As batteries age, they lose the ability to hold a charge and typically need to be replaced. Combining age with accidentally leaving a...
Hi, the turn signal fuse is number 10 if you would like to take a look, however, this also controls a few other lamps. So if they are working we can rule out the fuse. Other DeVille owners have reported...
It sounds like the idle speed is below specifications. I recommend having a trained technician, such as one from YourMechanic, retrieve any stored codes found within the computer and have them perform diagnostics based on the malfunctions that the computer...
My guess is that the noise you are hearing it the timing chain. These engines are well known for having problems with the timing chain, camshaft actuators, and solenoids. This problem first starts out as brief rattle noise upon start...
