Newbie needs help with 2005 Sentra misfiring cylinders now extreme, spark plug
Hello, this is my first post in this forum. My Sentra lives in a city that is nicknamed rain cover, AKA Vancouver Canada. This 2005 4 cylinder Sentra has 185000 km. About a year ago it started with a one-cylinder intermittent misfire. This car is used only about once a week to get groceries about a 1/2 mile away, and back. When I very occasionally used it on the highway oh, it would eventually fire all four cylinders , for a given time . Through the winter months ,The power loss gradually became worse . A week ago or so, it no longer had power to go 1/3 of a mile. I drove it back at 2 miles per hour, Home, downhill. I looked up some YouTube videos . Removing the ignition wire to the spark plugs revealed that only the leftmost cylinder ( looking from the outside the hood) firing normally. The next cylinder to the right was only slightly helping. The next two cylinders to the right were not firing at all. I replaced all four spark plugs with Autolite from Amazon.
After replacing two spark plugs on the rightmost, I turned on the engine, and thought I heard all four cylinders working. Although it was a little rough. I changed the other two spark plugs as well. Then I disconnected the battery. Unfortunately I hurt something in my knee right after, when I bent down to pick up the tools from the ground. Now I can only walk with a cane. This afternoon, I restarted the car, after connecting the battery back on. Unfortunately , The Sentra was back to working on something like 1/10 of its power and could not move slightly uphill much. So I parked it back, and disconnected the battery. Sorry for any typos from this Auto dictate. This Sentra does not leak any fluids. It runs on synthetic oil. Any information would be appreciated . Thank you in advance . The car is limping . So am I. When running the engine, there is a very strong smell of unburnt gas . I have photos. I don't know how to attach photos .
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