The Mechanic: addressing niggles

February 21st, 2012 -

There is a possibility that the original problem was never resolved.

Worn-tires-view-image--

Photo: Shutterstock

By Dave Redinger

Time for a little house keeping today – catching up on some old mail.

Q: I have an ’89 Olds Cutlass Ciera. A few months ago I started feeling a rattling in my steering. I had the car test driven and was told that my alignment was bad and that I needed to change the bottom bearings. I had the alignment and bearings done. I still have a shimmy and now the tires have started wearing. Could alignment be causing the shimmy?

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A: There is a possibility here that the original problem was never resolved. It sounds as if the tires are the problem. Bad tires can cause premature wear in front-end components. Even though the damage to the front end has been repaired, have the tires and wheels inspected. If possible, rotate them to the back and see if the vehicle performs better with the former rear wheels on the front. If it does, replace the tires.

 

Q: The “Check Engine Soon” signal light on my 2001 Plymouth Neon has been turned on permanently. Replacing: EGR, downstream and upstream oxygen sensors turned off this signal but the service engine light has come back on again. I have spent a lot of money for this trouble light, especially for the cost of using the On Board Diagnosis (OBD) system. Should I ignore the light or continue to re-fix the same problem?

A: The issue here is that probably the tech diagnosing the vehicle is not spending enough quality time with the car. The car will not operate properly with the light on. The vehicle is running in backup mode and will not react to environmental changes. The service “engine soon light” is a reminder that one or more of the sensors that operate the cars electronic fuel injection system have gone out of range or have failed completely. You should fix the problem to ensure the longevity of the engine.

 

Dave Redinger has more than 40 years’ experience as a mechanic and has run his shop, Doctor H Honda Specialists, in Toronto for the past 26 years. He’s also a radio talk show host and produces several television shows.

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