I have a 94 buick lasabre,3800 engine, usually runs fine?

[jenjennic]

but sometimes will not fire at all, can wait 1 to 3 hours it will start and run fine again
please help i'm going crazy!!

 

[kegwa]

but sometimes will not fire at all, can wait 1 to 3 hours it will start and run fine again
please help i'm going crazy!!

Did you try to check it to the mechanic? There maybe something on your engine or wirings.