93 Suburban wont start, acting like battery is dead
just replaced both oil coolant lines after I had one come off and spray oil everywhere. I had it towed home, replaced the lines, and when I went to start it it turned over very slowly like the battery was dead. tried it again and it did the same thing. went to auto zone to get the battery checked and its a perfectly fine battery. I checked and cleaned all connections on the battery and tried to start it again. now it just makes a loud clicking sound. what would cause it to turn over so slowly at first then not at all with a perfectly fine battery? im hoping its not a seized engine because it sounds like as soon as the starter hits the flywheel it just cant turn anymore. any input is greatly appreciated