986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Smoking engine after coil and spark plug change

john12312 · 04-05-2021, 05:54 PM

After putting the car up on jacks I changed the oil, brake fluid, transmission fluid and PS fluid. I did not start not the car for a week and a half while I waited for parts then changed the ignition coils, plug tubes and plugs. I started the car while still up on jacks and the top in service position and the engine made a weird screeching/whinning sound and smoke came out of the engine bay, smelled like gas. Got a check engine light. I pulled the plugs and they smell like gas. Don't think they fired. I put back the original coils and same issue. All of the ignition coil clips were secure so i don't think it's that connection. I don't have a scan tool and I don't want to run the engine for very long as it starts to smoke moments after starting. Anyone have any thoughts before I flatbed it to my mechanic?

04-05-2021, 05:54 PM	#1
john12312 2002 Boxster S Join Date: Nov 2016 Location: Maryland Posts: 127	Smoking engine after coil and spark plug change After putting the car up on jacks I changed the oil, brake fluid, transmission fluid and PS fluid. I did not start not the car for a week and a half while I waited for parts then changed the ignition coils, plug tubes and plugs. I started the car while still up on jacks and the top in service position and the engine made a weird screeching/whinning sound and smoke came out of the engine bay, smelled like gas. Got a check engine light. I pulled the plugs and they smell like gas. Don't think they fired. I put back the original coils and same issue. All of the ignition coil clips were secure so i don't think it's that connection. I don't have a scan tool and I don't want to run the engine for very long as it starts to smoke moments after starting. Anyone have any thoughts before I flatbed it to my mechanic? Last edited by john12312; 04-05-2021 at 05:59 PM.