Hey evrybody I recently put new spark plugs, wires, and fuel filter in my 1990 camaro and ever since It's been chugging when i go uphill or accelerate quickly. I drove it over 1200 miles since with no change in behavior but it really bugs me. I also cleaned the air filterout and maybe bumped something in the carburator? Any ideas on what it could be would be greatly appreciated

 

Maybe you crossed a couple plug wires?

 

Spark plug gapping could be wrong in one of the spark plugs. ad a similar issue with mine a while back, bought a tool that showes the voltage going through each wire.. turned out one of the wires burned up and was caused by the gap in the spark plug being to big. Car was running but chugging.

 

I replaced 'em one at a time so i dont see how i coulda got them switched but i failed to mention that when I replaced them that one of the wires was off. i dont know how long it'd been off. Also how readily will the spark jump through the wire to a ground?

 

Electricity finds the easiest way to ground. If the resistance in the spark plug circuit (combination of plug wire, internal plug resistor, and spark plug gap) exceeds the breakdown resistance of the spark plug wire insulation, and if the available spark voltage is high enough, the voltage will punch a hole trough the insulation and arc to ground rather than going through to the spark plug.

 

Is it possible that a spark plug slipped and dropped, then closed the gap without you noticing? Or maybe the porcelain cracked on one of the plugs while you were trying to attempt an acrobatic installation move with the ratchet?

 

Good thoughts- I'll check em all

 

found out it was broken porcelain on one of the spark plugs. luckily it was the front right plug which is the easiest to get to. thanks guys.