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Code P0720 and truck does not shift normally.
Hi there. The code that you are getting is for the output speed sensor of the transmission. I change quite a few of these as they are a common issue. I would have this replaced first and clear the codes....
AC compressor seized
Hello. You have several problems to sort out. The first thing to do is an OBD II scan for fault codes, although these may not be related to the AC problem. The AC problem could involve several potential issues including...
My key wil not turn what should i do?
Hi. This usually means that there is a problem with the parts inside the ignition key cylinder and it needs to be replaced to fix this problem. When this component needs to be replaced it will come with a new...
Fallen window
When your window falls down, the most common failure is the window regulator being broken and in need of replacement. I would have a certified mechanic, such as one from YourMechanic, come to your home or office to inspect your...
Transmission grinds, clunks, & whines on interstate
The driveshaft and final drive assembly needs to be checked. This is possibly caused by a failed center driveshaft bearing. The rubber insulator can fail and cause this type of issue. The vehicle undercarriage and driveline will need to be...
Unsuccessful dealership repairs for stereo/navigation system
Thanks for writing in about your 2001 Mercedes-Benz E430. If the issue is only on the left side and both the amplifier and head unit have been exchanged, the issue is most likely in the wiring between the amplifier and...
When shifting, loud bang-type noise
Hi there. A faulty motor mount could cause this type of noise on your 2002 Mercedes Benz E430. Another thing to consider is a center driveshaft bearing assembly. It may shift upward in its housing if the rubber bearing mount...
Upon starting, loud noise from catalytic converter
If the catalyst is broken inside the converter housing of your 2001 Mercedes E430, then you may get some loss of power due to increased back pressure from partial blockage created in the converter. This can also lead to increased...
A/C warm air and compressor comes on
Hooking up a set of gauges will let you know if the expansion valve is working properly. There is an auxiliary fan control module that controls the condenser fan. It is fed power by a 20A fuse. The fuse and...
My car's gear won't shift. Only neutral works. I just changed the transmission fluid.
Hello and thank you for your question. When you changed your transmission fluid, you need to ask yourself what the color of the fluid was when it drained out. If the fluid was very dark or black, then when putting...
after replacing spark plugs and wires engine light still come on should i replace the O2 sensor as diagnose suggested if so which
Hello. If the scanner indicated the O2 sensor was bad, I would recommend replacing. The oxygen sensors are located in the exhaust system of the engine, and they sense the oxygen content of the exhaust gases. There should be two...
Hey i have a 2002 Mercedes Benz E430. I replace the radiator and refill the coolant level. The problem is my car runs hot and it s
If you recently replaced the radiator, there's a possibility that it could have air in it, which will require the system to be bled. However, there may also be other issues that cause it to run hot. When you mention...

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