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Radiator and engine leaks
Hi there. An inspection of the radiator for white residue will be necessary. Radiator leaks generally occur where the plastic side tanks are mated to the sides of the aluminum radiator core. If this is the case, the radiator will...
Bad turn signals
Hello. This happens al lot on this vehicle. The problem is typically the turn signal switch assembly. The switch contact fail internally and cause this to happen. I typically check the voltage at the switch first to verify that it...
I decided to remove my intake manifold to clean it and remove the rear motor
Hello. The variable intake should reset once you put everything back together and run the engine. If the intake flaps are stuck, then there may be debris stuck in them from carbon build up, or the motors may have been...
Oil warning light keeps coming on
Hello there. This sounds like there are a few different things going on. The temperature warning and the water pump were most likely related occurrences. The power steering could've also gone out if the belt that powers the power steering...
Front end bouncing while turning from a stop
Hello there. Thanks for writing in about your 2003 BMW 745i. Many different faults can cause the vehicle to have bounce like this. The most common would be front struts, springs, tire balance, or a suspension arm. I recommend having...
White smoke while idling
White smoke while idling is normally reason to believe that your BMW may need the valve stems replaced, however this can also be the sign of bad Crankcase Ventilation (CCV) gaskets. On top of those possibilities, there are many things...
car crank not start, 2004 BMW 745i
The code you listed, P1727 indicates that the engine speed sensor is not providing a signal to the computer. Without knowing the position of the crankshaft, the ECM does not know when to inject fuel or when to ignite a...
Will the mass airflow sensor stop my car from reaching proper acceleration?
Hi, thanks for writing in. A faulty mass airflow sensor can certainly effect power, performance, and economy. If the engine computer does not read the mass airflow or any other sensor, it relies on basic settings to run. It does...

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