The car had no accelerating power and it was well overdue for new spark plugs and wires. I just replaced them and it’s doing much better, however, the engine seems to be shaking a bit when I start it/idling, which is making the entire car shake some too ( the seats, car shifter, etc ) . It’s been awhile since I’ve also replaced the air filter too, which I obviously should have checked but haven’t yet. When I replaced the spark plugs, I noticed there was a minor amount of engine oil on the spark plug wires, where they connect to the spark plugs; more notably the front 2(of 4), left and right. I also just changed the oil and there was no oil loss really, other than any minor amounts that get burned off through the miles.
The exhaust manifolds ( y-split ) are okay, but one of the nuts seems to loosen over time, causing a minor air leak there and makes it a tad noisy. Near the back half of the exhaust system, there some water dripping at one of the connections, and at the tail pipe the exhaust smoke is chugging and isn’t consistent sounding.
Does anyone have ideas as to what is still causing this engine shaking and the chugging noises from the exhaust system. The ‘Check Engine’ light is on, due to other repairs I know I need to make, such as an 02 sensor and fuel level sensor; however, lately it has started blinking too.
Thanks for your help and time.