Help: Tail pipe hiccups during idle

[jick.cejoco]

Hi All,

Need expert advise mga sir. My ae92 just had engine overhauled and replaced carb (replacement only). Problem is, during idle grabe ang sinok sa pipe, i had the fuel filter, fuel pump, air filter replaced. Plugs are new, distributor cap, high tension wires. The odd thing nawawala ang sinok pag on ng A/C. I can tell na meron pa rin but its completely tolerable unlike pag naka idle. Pls help. Car is running stock 4af engine.

is the hiccuping or misfire random or does it have a regular pattern? maybe your fuel is contaminated with water. if you just had the engine "overhauled" have the shop do a compression test and engine idle vacuum and engine cranking vacuum checked. there might be something the "mechanic" missed.