BuiltCivic99

was ****in around with some friends in a parkin lot n....i had my car running its a 94 dx with a b16 swap around 75k on the motor..but ...my friend pointed out that it was making a knocking or clunking noise....what is it...

Hardedge

That's not a lot of info...

Is it an OBDII B16A running a knock sensor? CEL? How is it running? Where exactly does the noise seem to be coming from? Is the motor modified? What octane? Have you messed with the ignition timing? Have you pulled the plugs and inspected them? And so on...

BuiltCivic99

im running open header so CEL is on cuz no 02 sensor...car is running like ****...it bogs all the time idols at like 100.... 93 octane...no i havnt messed with the ignition timing and no i havnt pulled the plugs and inspected them but i just put knew plugs in 5 days ago...brand new NGK's...and it has cams....my friend just texted me tho and he said it was possible a rod knock ..is that a possibility?

Hardedge

I'd scan the ECU to check for other codes; there probably is one if there's an idle problem. I believe the ECU may go into "limp" mode in cases of detonation or lean mixtures.

What I meant by check the plugs was to inspect them for signs of detonation or lean fuel mixtures. Running too lean usually causes the porcelain center to go really white (tan is normal), though if the plugs are new they probably aren't dirty yet anyway. Detonation will cause little silvery specks (like pepper) to show on the plugs; this is aluminum dust that being blasted off the pistons.

BuiltCivic99

will the idol problem is a vac leak i havnt found it yet but im pretty sure thats the problem with the idoling but is it a possible rod knock the clunking sound?? i hope not cuz that sounds like a rebuild to me...and i just ordered eagle rods and je pistons..**** lol

medorihb

if you could post a video with your car running and the sound it's making.... it would make it easier to help determine exactly what is wrong.

BuiltCivic99

all i want to kno if thats the kind of sound that a rod knock sounds like...like a clunk or knocking sound...

honda_1

does this knocking sound goes away as you rev the engine? if not it may be your rod bearings but if it goes away try fixing the vac leak and see your results

BuiltCivic99

aight well i figured out the problem ..it was the spark plug wire...the last cylinder the little cap at the end of the wire that when u push it down it pushes that rubber tube down into the cylinder it was out a little it was vibrating and hitting the sides of the cylinder but i cant push it back in, it wont go in ... how do i fix it

JarvisW

Is the spark plug seated all the way?

BuiltCivic99

u mean is it like tightned all the way down?

JarvisW

yep

BuiltCivic99

ya...it is.

JarvisW

Then check the end of the wire and be sure if you have the clip in there that connects to the top of the plug.

Dkober101

your running a open header and want to know why your car is running like s***?

jdmasfuk44

so what if u did mess with the ignition timeing what dose that have to do with it knocking ?its ether knocking on the bottom end or top end most likey is the barrings if u are reeveing it but if it is doing while just sitting then u need to o check the head for for valve not sitting right height i could be wrong just check it never hurts to check for **** that dont look right learn form ur mastakes