Question about Cars & Trucks
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
The bearings on the wheels has to be installed one way only, the rotor ring is built into the bearing and if installed the wrong way round the sensor cant pick up the wheel speed causing the ligt to be switched on in the cluster. The diagnostic equipment should pick this up as a fault once the car has been driven, it will see the sensor when you do the diagnostic if the car is standing still but once the car is moving and no signal is send from that wheel it would register a fault into the memory of the PCM that you would be able to retrieve later.
There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt.
If the continuaty test passes and the bearing is installed the correct way, the most comon fault would be a break in the wiring leading to the PCM
Hope this will be helpfull.
Posted on May 04, 2009
When both a scraping and grinding noise is heard from a wheel, it typically indicates a problem with the brakes, not the bearings. If when the brakes are applied, the noise changes, it does indicate a possible brake issue. I would first check the brakes and then take a close look at the bearings, as they can still cause the grinding noise, but not typically the scraping noise. Hope this is helpful.
Posted on Sep 26, 2009
You can have a scanner read the abs code, more than likely if you have a growling or humming noise in the Left front then a wheel bearing is bad. the abs in these trucks has the front speed sensors bolted into the wheel bearings, if the bearing gets bad it will sometimes cause the light to come on due to things like broken or "shifting" tone ring, lifted sensor (air gap) due to corrosion, etc... buying an aftermarket bearing comes with a sensor already installed and so normally will fix the problem (if the scanner says that the same sensor is causing the fault of course). check the bearing by jacking up the side of the vehicle you suspect, use a jack stand to support the truck from dropping accidentally, grab the wheel on top and bottom, one hand on each, then rock the wheel to check for play, there should be none, play could indicate a faulty bearing, or some other component. now check for roughness and noise in the bearing by placing one hand on the spring, either coil spring or torsion bar, and spin the wheel by hand, if the bearing is bad you will feel a vibration coming through the spring, you may also hear the "roar" or "hum" of the bearing when it is spinning. This will tell you if the bearing is actually at fault. if you are not comfortable doing this yourself bring it to a qualified mechanic and have them check for you, also a scanner to check the code should be done also to ensure more then one problem does not exist. hope this will help you. cheers
Posted on Feb 05, 2010
Tips for a great answer:
Oct 18, 2016 | Cars & Trucks
Mar 21, 2015 | 1998 Ford Escort
Mar 14, 2013 | 2000 Mercury Mystique
Aug 24, 2010 | 2001 Chevrolet Impala
Mar 15, 2010 | 2004 Ford Explorer
Jul 28, 2009 | 2005 Chevrolet Silverado
Jun 09, 2009 | 2004 Saturn VUE
Mar 12, 2009 | 2003 Oldsmobile Silhouette
16 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: