POSSIBLE MISSFIRE

[BB36]

I JUST BOUGHT A 1988 Bronco II ABOUT A MONTH AGO AND WHEN I TEST DROVE IT EVERYTHING SEEMED FINE. ABOUT A WEEK TO 10 DAYS AGO THE ENGINE FEELS LIKE IT HAS A MISS WHEN I'M DRIVING,(NOT ALL THE TIME)IT FEELS LIKE ITS BUCKING.IT STARTS RIGHT UP WHEN I TURN THE KEY.THE ENGINE WAS REPLACED WITH A JASPER MOTOR 13000 MILES AGO. ALL HOSES HAVE BEEN REPLACED (VACUUM AND WATER). I'M THINKING OF PUTTING IN A GARAGE TO HAVE THEM LOOK AT IT BUT BEFORE I DO I WANT TO SEE IF THERES ANYONE OUT THERE THAT MIGHT HAVE AN IDEA OR POSSIBILY THE SAME PROBLEM AND FIXED IT IN THE PAST. I ALSO HAVE BEEN SMELLING ANTIFREEZE SOMETIMES WHEN I USE THE HEATER BUT NO SIGNS OF A LEEK IN OR OUTSIDE THE VEH.

 

[coolio2281]

as far as the smell i have no idea, i know i had a problem with misfiring when i get my bronco out of storage, ended up being a cracked distributor cap, and over night condensation would build up in there and it would take about 5 min of driving before it would go away, might wanna check that out, may end up being something simple