Start at the battery. Remove and clean all connections. If the battery is over 3 years old you probably need to replace it. Can also be a starter going bad.
have u checked spark plug wires, ignition coils, timing,spark plugs or had it hooked to a reader?
I had the same problem with a 1992 Park Avenue with the 3800 engine. I first replaced the electronic ignition but that did not fix the problem. I then replaced the crankshaft heat sensor. That fixed my problem.
most of the time no, however that being said, if the fireing order were REALLY messed up it could result in a severe backfire or crankcase ignition and damage the engine. most of the time it just belches and wont run though.
Yea, the 1993 Buick Lesabre does have a fuse for the horn. However, there could be other reasons why the horn doesn't work, the clockspring or relay could be out.
Water.
The radiator drain plug should be close to the bottom of the radiator facing the engine. It could be a wing nut, or could be the type that is turned by a ratchet and extension.
Get an engine computer code read out . Could be a fuel sensor problem or even a mass air flow sensor. It could let you down if you don;t get it repaired.
Hey AJay==Yes, it could be the fuel pump. It could be the relay also. If it won't start, listen when you turn the ignition on and you shouod hear the pump run for 2 seconds. The relay is in the stack of relays in the middle of the firewall. GoodluckJoe I found out that my crank sensor needed replaced. I also won a 92 Buick LeSabre and sometime ago had the same problem. What was causing it to not start sometimes was a faulty ignition module. Cost me about $585.00 to replace it. Good luck.
Could be a burnt out bulb or a bad flasher unit.
Weak ignition coil? valve (intake) hanging up at times not allowing fuel mixture to enter combustion chamber?
Check for burnt out bulbs and could be a bad flasher as well.
take it to dealership