Auto Scanner
Q: I have a 2007 Chrysler 300, and in the center of the dash there is a clock that looks like a pocket watch. Every day, it loses a half-hour or more and I have to reset it. Is this something that I have to take back to the dealership, or is there something that I can do?
A: There are two ways to handle this problem. First, you could take the vehicle to a shop and have the clock removed and sent to the dealer, who will in turn send it out for repair. The least expensive way to handle the problem would be to have the clock removed and pick up one at a local car recycling dealer, or even at an online auction site. There are not any special tools involved in the removal of the clock, but there is a level of skill needed to remove and reinstall the clock. By the way, I personally like the analog clock, it's a classy touch.
Q: I have a 2003 Mitsubishi Gallant with 94,000 miles on it. I have taken care of it on a regular basis. All of a sudden, the needles on my dashboard will go crazy. The speedometer, the gas gauge and the RPM needle will jump all over the place. I can go for two days without it happening, then it can happen three or four times within 10 miles. Sometimes the needles will stick until I turn off the car. I hate to take it back to the dealer. Do you have any idea what the problem could be?
A: Most times, this problem is due to an open diode in the alternator. What that means simply stated is the alternator, which by design is supposed to have an output of DC current, is putting out AC current, like the type that powers your home. In most cases, the instrument panel and other computerized devices don't like when this happens and will react badly. Most of the better repair shops will be able to test your alternator for this problem. This test simply looks for excess ripple in the sign wave produced by the alternator.
Q: I was told many years ago that whenever your automobile spends any time being worked on in a body shop, you should have the oil changed when it's finished. My friends don't believe it. What's your opinion of this?
A: That is a valid tip. Here is the deal on this. In a body shop, there is typically a lot of dust caused by sanding a car during the repairs. You will notice the shop workers wear breathing masks. Your car isn't as fortunate. And the dust generated ends up in your engine, and possibly in your car if the car is not sealed. The body shop will typically clean the car inside and out before returning it to you, but very rarely will they change the oil or the oil filter, which will be contaminated with body repair dust.
Car Care Tip: If you are experiencing a bad odor from your heater, Napa has a very inexpensive and easy-to-use kit that will get rid of the mold that is causing the bad odor.
¢¢¢
Larry Rubenstein is a master technician who owns a North Shore service station. His column appears every Saturday. Write to Larry at The Salem News, c/o Auto Scanner, 32 Dunham Road, Beverly, MA 01915, or send e-mail to scanauto@aol.com.
