I have a knocking noise everytime I accelerate , I have tried to change gasoline " I only use premium " I was told it might be that but obviously its not... What else could it be??? Thank You , Rami

 

Ignition coils

Im taking mine in tomorrow to hopefull get my coils swaped under warrantee Ill tell you how it works out.

 

I am also taking my car to the dealere tomorrow - - I also thought it was the ignition coils but there is 6 of them...... how do we know with ones need to be replaced.... I will also let u know once i hear from the nissan dealer thanks

 

They are bad in the 00-01. Replace all six. My pinging, which I had from day one and put up with for four years, went away once I replaced all 6 coils! Car runs better than when it was new now!!

 

Sorry to ask a stupid question, but what does this "pinging" sound like. Can someone describe it?

 

Sounds like knocking noise... I just got my car from the dealer - they said that the coils where just fine and that my (MAS) needed to be changed the MAS AIR FLOW -- I had them do that and when I drove the car of the lot , I didnt hear anymore pinging noise.... it took care of the problem.

 

Is there a way to visibly see if the coils need replaced? I changed my sparkplugs recently to copper NGK's, but I've still had problems with my car stalling when I come to a stop on occassion. Is changing ignition coils as simple as changing the spark plugs, or does it need a computer to program it? Any help is appreciated. Thanks.

 

its easier than changing plugs. just unplug the connector, attach the new one then put a light coat of high temp dielectric grease on the inside of the boot and put it back in. do this for all 6 and you are good to go.

 

I have an 01 they changed the 6 on my car....NO LUCK it still making the pinging........

 

mine was knocking very low for quite some time. then on day on the way to PA i heard a loud bang. 2 weeks later i had a brand new motor under warranty. Feb 04

 

Can someone please give me an idea of what the coils cost, and which ones to get. Thanks.
G

 

nissan deal sells the coils for $63 each. About the pinging noise , I just fixed it and it was the MAS ( Mass Air FLow ) that did the job, now it runs smooth.