Question about Cars & Trucks
It's a 2000 BMW X5 4.4i , loud knocking noise coming from left side of engine, once starting it up and stays with that noise when pushing the gas and gets louder
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Most likely it's a wheel bearing going out.., If you turn to the right, or the left when driving the noise will change pitch. Been there done that.....
Posted on Feb 01, 2009
It might be a faulty power steering pump. Try checking the level of the power steering fluid. It is probably best you have your power steering system checked by a mechanic.
Does the noise occur only when the vehicle is moving?
Try moving the steering wheel from side to side, while stationary (but don't do it too often, or you might damage something). If the noise is still present when the car is stationary, then it probably is the power steering system.
If the noise only occurs while the vehicle is moving, it could be a problem with the differential/final drive, or even wheel bearings.
Posted on Apr 21, 2009
without being there to listen to it then it is going to be hard to say what the problem is......but since my 20 plus yrs working on toyota and lexus and depending on the mileage and whether or not you have ever replaced the timing belt......i would first start by checking the timing belt because when the motor is cold the rubber on the belt gets hard and if the belt is streched when first started it will start flapping and will slap against the timing cover and as it warms up the rubber on the belt softens up and the noise will reduce to a less noticeable sound......i have also the wrist pin bushings and the pins themselves that are connected to the pistons make this noise and also if the oil rings are sticking it will leave the pistons loose in the cylinder wall and as the motor warms up the noise will go away.....i hope that this info will help and if you need anymore info let me know with more detail.....also if you could let me and fixya know if i was able to help you in any way and a comment and a thumbs up would be greatly appreciated....thanks and good luck.......have a blessed day...........
Posted on Aug 07, 2011
Tips for a great answer:
Oct 07, 2016 | Mazda Cars & Trucks
Oct 06, 2014 | Cars & Trucks
May 07, 2014 | Mazda MPV Cars & Trucks
Jul 02, 2013 | 2000 Toyota Camry
Apr 11, 2010 | 2000 Oldsmobile Intrigue
Oct 13, 2008 | 2000 Dodge Grand Caravan
293 people viewed this question
Usually answered in minutes!