The cooling fans running on a 90 degree day is fairly normal for most cars. The coolant overflow full with pressure is also normal. As the heat of the coolant heats up and cools down this causes an expanding and...
The codes all reference engine misfires. Continued misfires can cause the catalyst to fail and block the exhaust. The past diagnosis you had that the coils could be bad was correct. The coils and plugs should be replaced first and...
Hello - the loss of power you are experiencing could be a failed throttle position sensor, or a clogged catalytic converter. Either of these will reduce engine power, and cause the lack of performance you are seeing. I recommend a...
Hi there. If there is an obstruction in your wheel well then that can come in contact with your tires and puncture your tire. It can possibly be a piece of bent metal that is coming in contact with your...
There is an engine serial number stamped on the extreme right lower front of your engine. The exact location of the serial number is depicted in an illustration appearing on page 9-10 (Section 9, page 10) of your vehicle's owner...
Multiple lights may be caused by multiple problems.Your BMW has a few dozen computers which can trigger warning lights to appear on your dash. Diagnosing multiple problems may be time extensive, but can be performed by a qualified technician with...
Engines can make a lot of different noises when there is something wrong. If it is extremely loud and consistent, your engine will need replaced. If it is ‘knocking” when the engine is cold and is quiet when it’s warm,...
Hello. These issues can be caused by a few things. From the codes it sounds like there may be an issue with the fuel system. It may also be an issue with the air intake system allowing too much air...
Check the fluid level (and fluid condition) in the transmission to be sure the fluid level is not too high or too low. The jerking could be transmission or engine related. If the noise is coming from the transmission, and...
Hello. There are many things that can cause a battery to drain even when the car is off. If any live wire on the vehicle, there are many, short to ground then they can complete a circuit that will place...
Hello - I would first check the wiring connector at the transmission for good contact and secure connection, and fuses for the transmission controller. It is possible that an internal speed sensor in the transmission has failed. I would recommend...
There is a sensor in the seats of your BMW 545i that signals the computer there is someone in the seat and will turn on or off the passenger air bag. If you have leather seats that are not soft...
Hello. You will need to have the vehicle taken to a mechanic that has the special tool to get the broken plug out (maybe). I say maybe cause the tool may not get out the broken pieces and the cylinder...
Hello - I would first put a real oil pressure gauge on the port for the oil pressure switch and see what real pressure looks like before driving it. Low oil pressure light switches trigger at only about 5 psi,...
Hello, thanks for writing in. For this particular vehicle it appears that the pulley and harmonic balancer are integrated into one unit. That means replacing either would be to replace both, as they are one part. If you would like...
Hello. Thanks for writing in about your 2002 GMC Safari. There are several components that may be causing this problem. There could be a bad throttle position sensor, a throttle cable that is sticking, or a vacuum leak. All of...
Hi there, thanks for writing in. The shift linkage should first be checked to make sure it is going all the way in gear. Sometimes these vehicles had problems when motor mounts broke and it would not go into gear....
For this problem, the alternator is the most common failure. I recommend having a certified mechanic like one from YourMechanic, come and test your vehicle for you to see if the alternator or another component is causing the issue. They...
Hi there: In some cases, the squeaking sound that is coming behind the glove box is attributed to the air conditioning or heater blower motor. If you had either of these two components activated when the noise came on, this...
There may be a few reasons your compressor can rattle. First the noise will have to be determined to be internal or external to the compressor. If the noise is internal then it is most likely a bad compressor. If...
Engine coolant is essential for keeping your engine in the normal operating temperature range while it’s running. If the coolant level drops, the engine can overheat. This can lead to serious damage and even destroy your engine in severe situations....
You can access fuel pump by removing the access panel in the very front of the trunk by rear seat. if you find you are needing help with this repair, a certified technician from YourMechanic can come to your home...
This may suggest the thermostat might be stuck open or you may have a clogged heater core. As you know, if the thermostat is stuck open, the coolant circulates constantly never allowing the motor to fully warm up and therefore...
