after i 've changed coolant and spark plugs on 06 G35 coupe, somewhere in the engine room is making knocking sound consistantly. i can barely hear in the car but i can definitely hear when i open the hood.
The sound might come from left side of the engine where the spark plugs are.. maybe spark plugs #3.
Can spark plugs make knocking sound consistantly in idle.?

 

well, just spend another 3 bucks and buy another spark plug wire.

change the plug you think that is bad.

that may be causing your knocking as one of the plugs might be broken.

 

There are two things that will make the sound you're describing, the most obvious would be the wire isn't pushed down on the plug so you have an arching situation which makes that noise. The second would be a bad wire, both are easy to fix....
Gary

 

spark plug wire? is that the gray plastic thing with wires or the black thing that attaches to the spark plug??

what would happen in the future if i dun fix this now?

 

lol, dude its hella cheap. and yes its the plastic thing with wires.

you can buy a new set for about 40.

just push all the black things down hard. no homo. lol.

if you dont fix it..? why wouldnt you lol -___-

just do it man

 

1) i've never touched any electric stuff lol
2)i'm not sure which spark plug wire if the sound is coming from there.
3) in a week, i've bought a bottle of coolant, air filter, and mobile engine oil, serpentine belt and oil filter for my parent's car. Also i've bought spark plugs, coolant, air filter, mobile engine oil, and bosche oil filter for my g35...In one WEEK!! too much money n work had done

 

who cares.

i think its worth it. just change ALL OF THEM. go to autozone or buy some brand name ones online.

its okay.

i spent over 1k on my 240.
which i sold couple if weeks ago to buy a g35. =]

 

i'll prolly do that. but Nothing happens to the engine or anything if i dun replace them right?

 

" can cause hard starting (particularly during wet weather), poor fuel economy, rough idle, hesitation when accelerating and increased hydrocarbon (HC) emissions"

i think you should just do it lol..

REMEMBER. when you replace the spark plug wires. DO IT ONE AT A TIME. START WITH LONGEST WIRE TO SHORTEST.

you can cause a back fire and most likely damage your engine.

 

thx so much!

 

i hope you did it.

 

Our engines have no spark plug wires...we have coil over plugs.The so called wires some people are reffering to are atached to the coil.

 

samme **** lol.

 

i knew it.. i was looking for spark plug wires on my g35 and like...wth..it doesn't have them..lol
so the wires that attach to the coil packs are the one i need right?

 

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