Engine is misfiring?

It turns out one of the spark plugs was cracked, thanks for the guides they helped me.

My car was put on the machine and advised that it has random multiple misfires. Could you tell me the problem?

I replaced two ignition coils and all spark plugs and engine keeps sending misfire code.

I have a nissan altima 2006 2.5s with 115kmiles on it. Car is slightly shaky in drive mode than in park mode. Service engine light for the misfiring cylinder 3 is on. Is there any correlation between these problems. What could cause these problem and what would be the approx repair cost for this problem?

Thank you

Hi, I would really appreciate any suggestions on what could be wrong with my car. So it all started couple weeks ago. Started my car to go to work, was fine, stopped at gas station to get gas. I was on E for a little while now. So I got some gas (not much I was already in a rush so figured I'll get more later) so I only got 1/4 tank of gas. As soon as I started the car at the gas station to leave, I noticed something was not right. Car was shaking hard and it smelled like smoke from inside. I was actually scared to drive to work wasn't sure if it was safe to drive. But I ended up driving it. It was down the street from gas station. A friend brought over seafoam and put it in the gas tank. He said I could have got bad gas or sucked something up from being on empty? (When I started it before he even put in seafoam, it was running fine now) this was fifteen minutes after parking at work. So anyway, he put in the seafoam and drove my car to gas station and filled up the tank to full. Drove around, said it's fine now. It was good for a couple days, then issue started happening again. Car shaking when turn it on, sounds very rough like it's about to break down, sputtering sound, worse when I change gear to drive from park. Engine light blinking. No smell. So I took it to a mechanic to get checked out, but it wasn't acting up for them so they couldn't diagnose the issue. They said they drove it around couple times and it's running fine. No engine light on, no shaking, etc. Took the car home. Was fine again for a while. Then started happening again! Now more frequently but still only sometimes. Now I'm realizing it is usually like this: I start the car in morning, and it's running fine, then I drive for about ten to fifteen minutes. Car is off for either couple hours or few minutes, then go to start car and the issue comes up. So it seems like it's happening after the car is fully heated up and I start it. When I change gear to drive, the shaking and noise gets worse and engine light is blinking. Sometimes the issue goes away after I continue driving for about ten minutes. But now I am not driving my car anymore because I am scared I'll make it worse and I don't feel safe! Any idea what could be the issue? Thank you!

Hi, I have the listed above model. When I start the car it cranks sometime during self start. The car pick up is really slow when accelerating. If I drive the car more than 100 kms/hr, the car misfires and jerks or say vibrates. Also, when I stop car it jerks and shakes too much until I make the gear on N. And again if I put the gear on D, it jerks and misfires and picks up real slow. Sometimes it just sops when I put the gear on D and starts after five minutes. I had changed coils and spark plugs and battery as well three months back.

2004 nissan altima 2.5L jerks with acceleration, then runs fine for a few seconds then jerks with acceleration. Idles fine until you give it gas car will then rev up for a few seconds then idle fine then ev again, no check engine light. It all started when I stopped on the highway in traffic. Went to give it gas and started jerking. Any idea's?

But wouldn't you get a code froma misfire?

There are no plug wires there are only individual coil packs. The car idles perfect until you press the gas

2003 Nissan Altima 4 cyl 127000 miles

The engine service light is flashing which indicates a misfire, I took the car and had it scanned and it scanned to confirm this. I have changed the plugs as the first step, I am starting to think that the ingintion pack or individual Direct Ignition systems are bad. Is there a way to test these packs to determine which one is bad?