Buy Now | Log In | ALLDATA Corporate Site |
Back To Home Page
Log In To Your Subscription
Go To ALLDATA Back Home
Buy A Subscription! Back Home About ALLDATA Information View Sample Vehicles Read Testimonials View Factory Service Bulletins and Recall Titles Contact Us
Dowload Our Navigation Chart
February 2015: New vehicles added including 2014 GM.
• View New Vehicles
October 2014: Release of 2013 along with initial 2014 Vehicles
• View Vehicles
View All News and Updates:
• Go To News
Tech Tips
  Read All Tech Tips

ALLDATA Tech Articles Are Updated Weekly
• View All Tech Articles

  Dodge Durango: Brake Pulsation Problems In Paul's Durango
• Read Dodge Article
Fixing A Smelly Audi Audi Tech Tip: A4 begins to Smell caused by a Faulty Hose Composition
• Read Audi Article
Why Do You Need To Change Your Timing Belt? Why Replace Your Timing Belt
• Read Belt Article
Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
Home >> Featured Tech Articles >> Go Back
  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

'97 Mercury Sable Wagon, Vibration & Noise

Q: My '97 Mercury Sable Wagon with a 3.0 24valve engine and 105K miles is exhibiting a constant, pronounced vibration and muffled rubbing noise coming from the left front. It seems to be in time with the speed of the car, not the engine, and is the same when the car is rolling in neutral. It doesn't change when making turns. I suspect the axle bearing, but after jacking up the car I can't detect any looseness or end play in the hub when I rock the wheel or if I try prying between the lug plate and the steering knuckle with the wheel and brake rotor off. After removing the brake caliper, I can't detect any unusual vibration or noise when I spin the wheel by hand. The bearing seals do not appear to be leaking. Also, after driving several miles at 40-50 mph, the end of the axle shaft is only warm to the touch, and no hotter than the other side. Before I replace the axle bearing, is there anything else that could be causing this? Perhaps the bearing at the other end of the half-shaft, inside the transaxle case is the cause? How can I tell the difference? Are there any other suspects?

- Joe N.

A: You’ve really done a good job of covering the bases. I’m inclined to agree with you that the wheel bearing is the culprit, but as you have found it is not always easy to prove. Allowing the vehicle roll while in neutral removes a good amount of load from the transmission/transaxle. Generally, if the source noise is from that area it will be reduced. Because the noise doesn’t change, the wheel bearing, which always has the load of the vehicle weight is once again suspect. A wheel bearing doesn’t have to be loose, have signs of seal leakage or even feel rough as the wheel is spun to be a noise source. In some cases the only way to tell is to remove the bearing and spin it in your hand to get a feel for the problem. One other note; try rotating the tires. We’ve had tires make a noise that you would bet coffee is a bad wheel bearing. It’s just all part of the fun you can have with cars.

Have any Questions About Please Email Us
Buy Now | Log In | About | Sample Vehicles | Testimonials | Join Affiliate Program