Hi guys. Here's the problem on the instrument panel of my '91 245 Volvo.
anyone ever run into this kind of problem? explanations in the video and in the youtube description. Thank you.

 

Sure you have a poor connection on one or more wires where they attach to the cluster -

 

thanks hoonk. the car didn't start this morning. battery on the ground and instrument panel (again off) I tried to start it with the booster but nothing to do. moreover, the digital thermometer has also turned off. perhaps too many attempts have electrocuted him? I don't know, I finally took out the battery, put it in the garage under charge, and now it will stay in charge all night with a power tensioner. tomorrow I reassemble the battery, I try to make it work both with the battery charged (hopefully) and with the booster, which I hope I don't have to use. the car is now parked not far from my house.

 

This is not a charging issue. You have a major electrical break somewhere, check your connections--shouldn't be too hard to find.

 

while the battery is under charge somewhere.. now would be a great time to clean all your ground wires at both ends.....