Question: I have a 1992 Ford F-250 truck with a 7.3-liter diesel engine. When I am driving down the road at a steady pace, the transmission shifts in and out of overdrive. Also, the tachometer drops ...

If you've driven classic Mustangs for any time at all, you know that their instrument panels go haywire from time to time. Thankfully, Mustang instruments are easy to diagnose and fix once you learn ...