1994 Blazer you turn the key and the gauge lights got out and it don't start
Bad battery? If not check battery terminals for corrosion.. If everything seems normal until you attempt to start the vehicle, I would bet that it is a poor connection. Clean the terminals on the battery and the connections with a stiff wire brush or some sandpaper till everything looks shiny and clean. If that doesn't work, could be a battery or... Another electrical gremlin
Search Chevrolet Blazer Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Blazer Experts