Ask Bob: Electrical Ghosts

by Bob DeP.


Dear Bob,
I have a 1997 T-100 that has been regularly tuned up and fully serviced. It has 53,000 miles on it. After driving around for 45 minutes in 96 heat I stopped somewhere for half an hour and the battery was dead when I returned. The battery voltmeter read only about 7V and the electrical would barely work. I had the battery recharged for 90 minutes and I still had the same problem. I push-started the truck and noticed that my oil level would rise as I would speed up, and as I slowed down the oil level gauge would go down also. When I turn on my headlights the radio would blink off at the same time the headlights were turned on. This is my second battery, and it's only 11 months old. I hope that you can help.
Mike

Mike,
I would say that you have a bad alternator. Your gauges fluctuate with speed because the alternator is putting out more voltage as you rev up the engine. Now, it may be as simple as a bad voltage regulator, but I think on that car the regulator is inside the alternator.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man


Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.

Stay Connected with TDS






TDS Pinner Of The Month




Subscribe to TDS Newsletters

Join over 250,000 other subscribers!

Join Fido!

Discounted movie tickets
Sign up for Savvy Savings at TDS and get a free membership for discounted movie tickets!

Your Email:


The Dollar Stretcher
Dollar Stretcher Parents
Dollar Stretcher Tips
Surviving Tough Times
Financial Independence
The Computer Lady
Computer Lady Lessons
Healthy Foods

Your Email:


View the TDS Privacy Policy.