Hi, I'm new here and was wondering if I could get some help with a speedometer problem that just started today. I was driving today and looked down at my speedometer and it said I was going 20 mph, knowing I was going faster I sped up and it didn't react. About 5 min later it was reading 80mph. I stopped, turned the car off and then back on and nothing, it remained at 80mph. I continued driving and by the time I got home, about 2 min later, it was reading 135. It had slowly crept up and in no way moved suddenly or backwards. All of my other gauges are working correctly. I have heard it could be a gauge cluster problem but since it was only my speedometer acting up I wondered if it could possibly be something else. With my car off it reads at 135. About a week and a half ago I unplugged my battery to install a new stereo system, but I doubt that has anything to do with it. Any help would be appreciated, thank you. Bob

 

i was reading another post on here and they were saying something about the motors that run the guages going bad but im not sure. try searching guage probelms maybe someone else has a similar post

 

Check out this post
https://montecarloforum.com/m_118617/tm.htm