Recently I changed my ignition coils, spark plugs, and wires. My mechanic told me that the front trailing spark plug hole was warped a little bit and the plug wouldn't go all the way in, but he said he got it fixed. So I checked myself and sure enough, the plug is all the way in straight and tight. As I was driving back home, it felt like my car was revitalized except there is a small rattling/gurgling noise whenever I accelerate. When I let go of the gas pedal, the noise stops. I've drove it for about 200 miles now, and there isn't a problem. I just wanted to know if anyone knew if this is going to effect my car negatively in the long run.

Also during the coil,plug,wire change I changed my engine oil to 5W30 RP oil and replaced the clutch wire to Racing Beat's stainless steel.
The car is 2004 6-MT with about 56,000 miles.

 

warped plug hole huh?? never seen one warp and i've got 10 years of the rotary ownership and mechanicals under my belt. at any rate, have you narrowed the rattling down to a particular area. does it come and go as the engine rpm's change? the first thought that comes to mind for me would be a loose catylitic converter heat shield.

 

Cross threaded plug Kick Mechanic in ***......hard

 

I have a similar noise when I accelerate, but only aboue 4700 rpm's only when the secondaries open/ If I let up off the accelerator it stops/ seems to be only under a load/ weird

 

Ya I’ve had the same problem too and someone on told me it might be detonations.

 

I am going to take mine to the dealer today/ I will let you know what happens!

 

Of course! I went to take my car to the dealer and it isn't making any abnormal noise! Thats how it goes, it will probably do it all week and when I have time to take it in it won't do it again!

 

^^thats always how it works..my brakes have been squealing since i bought the car..new pads all around..tsb says shims need to be applied to pads and grease applicable points. stopped squealing on the way to the dealer..as soon as i left the dealer, wouldnt you know it, started squealing again.

 

does it sound like marbles in a can? That may be detonation. what octane rating of fuel are you using? also what is ur location

 

Dam did anyone figure out this problem? My girl is having the same problem in her 8. The noise comes from the Gauge Cluster...as I accelerate sounds like sparks...or marbles hitting each other a lot...chatter.