Over. Christmas I drove my mother in-law. 1993 dodge. Ram van b250 5.2 from California to md. No problems I was doing some repair work replacing an intake gasket and when I went to run it the coolant gage wasn't working. it worked on the trip here. I replaced the temp sensor and still no change. The van runs great just no signal to the coolantguage. I am an auto technition but this has got me stumped. If anyone has an answer i would appreciate some input. I'm thinking the gage it self is not good.