92LS400D-town

If its completely balless and acts like sometimes it wants to die then check you spark plug wires. Mine was acting like a bad fuel pump and was a sporadic problem but then got worse. I figured it was the spark plugs needed replacing but turned out the spark plug wire to the coil on the driverside was arcing against the valve cover. I replaced the wires and plugs while I already had everything apart. Then cleaned the throttle body too. Car runs like a MILLION bucks! These are Great cars. Also the surging problem at about 45mph went away too. I've read some people thought it was a bad torque converter. May want to do these things first before going through changing torque converters. This is a much cheaper fix. If you replace your own wires, BEWARE OF THE DRIVER SIDE COIL WIRE GETTING CUT BY THE CAM GEAR.

Just a heads up, I had the exact same problem and turns out the key had trash in it. I took the key cover off and sprayed electrical cleaner in the key with the battery removed then blew it out. Once dry put the battery & cap back on. Works like a charm!

I change my oil every 7K miles using Mobile 1 full Synthetic 5w-30. Just start turning brown at that point. Its not even black though.