Last week while driving from Las Vegas to California I stopped at Flying J truck stop in Prim Nev to fuel up. When I left there I noticed that the speedometer was not working proper. I got on I-15 and that is when I noticed my speedometer was only showing that I was doing about thirty miles per hour when I knew I was doing more like sixty miles per hour. Now my question is, does the ignition switch have anything to do with the speedometer? Reason I wonder about the ignition switch is because my wife forgot the engine was still running and could not hear the sound of the Cat engine which is loud anyways, but with all the big rigs fueling she did not know the switch was in the one position and could not pull the key off. I needed the keys to unlock the cover outside to fuel. Anyways she finally figured it out and handed me the keys, but I was wondering if the pulling hard of the key at the ignition switch might have had some cause for the problem with the speedometer. I just kept driving and did not stop anymore until I got home, so I am not sure if the problem is gone now knowing the switch might be working better. NOT SURE!
2002 Gulf Stream Scenic Cruiser 38'
Neway Freightliner chassis, 2018 Buick Envision Ess.
3126-E Caterpillar 330 hp