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Post Title: pulling code for number four misfire
Posted by: lcurran429 at 4:04 PM 7/1/2009

hello,

About a month ago I noticed my Sentra missing slightly on start up. I did a scan check, and pulled a code for number four misfire. I bought a new plug, and the code was gone until today. I was going to buy a new COP, but I thought I'd post here, and see if anyone else has had this problem. I'm new to Nissan, but turned a few wrenches in the past. Once it stops raining, I'll run out and scan it again. I'm sure it will be the same code though.


TIA for any suggestions

Leo



Post Title: Re: pulling code for number four misfire (lcurran429)
Posted by: Wc240 at 3:15 PM 7/7/2009



swap the coil on number four with the coil on number one. then clear the code and take it for a drive. if you get a code for a number 1 misfire, youll know that you have a bad coil.



Post Title: Re: pulling code for number four misfire (Wc240)
Posted by: lcurran429 at 4:32 PM 7/7/2009

Good tip Wc240.
Appreciate it.



Post Title: Re: pulling code for number four misfire (lcurran429)
Posted by: lcurran429 at 3:22 PM 7/16/2009

Just wanted to post that I found out the cause for the misfire. Head gasket leaking coolant into #4 cylinder. Coolant level dropping with no evidence of a leak externally. BUMMER!!

Just wanted to mention...after I turned the cel off with the scanner, it still misses, but doesn't turn the cel on anymore. Although it just misses for a few seconds at start up, maybe not long enough to trip a code. Too bad, I was beginning to like this car.




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