What could be wrong if the speedometer stopped working and the transmission will not shift?
This happened to me a couple years ago in a Dodge Caravan. The problem was the speedometer sensing unit. When it goes bad, the automatic transmission defaults to a “safe” mode where it stays in second gear. It was a long, slow drive out of the mountains and back into town and the transmission shop, but I was sure glad to hear it was just a sensor (less than $100 including labor) and not a transmission problem.
This happened to me a couple years ago in a Dodge Caravan. The problem was the speedometer sensing unit. When it goes bad, the automatic transmission defaults to a “safe” mode where it stays in second gear. It was a long, slow drive out of the mountains and back into town and the transmission shop, but I was sure glad to hear it was just a sensor (less than $100 including labor) and not a transmission problem ANSWER good answer on the (dodge caravan) i had an older van i learned this the hard way. i took off the old modulator which causes the transmission to shift the little set pin inside fell out and i never even seen it fall thus i put it back together and it stopped shifting i took it off went to pepboys auto asked for another and lo and behold the desk guy said MAKE SURE I PUT THE PIN IN or the vehicle won’t shift.
