I need some help. Im getting a loud knocking sound coming from the plenum/injector area. It even knocks during adle. I have the turbonetics kit installed.

thanks

 

There are no moving parts in this area but just below are the pistons.
Remove the spark plugs & check for signs of damage, you may have cracked off a piece of the top ring land.

 

mmm piston damage, i hope noooot

 

It seems you may have a oiece of metal in there. Take it off and find out.

 

some injectors are really loud. i.e PE

 

i open the upper plenum and i smell gas. The car runs but not much power

 

uh oh, what are your driving habits? you abuse it? daily driver?

 

i boost here and there but havent raced in a while. and its not a daily driver.

 

you can try to check your valve lashes. If they are out of given specs they will work really loud. So loud that some cars can even detect this as knock, and some ears too. This may let your valves to stick open and well..

 

Are you running cams?

 

no cams. white smokes comes out of my exhaust. not too smokey.

 

If a loud metal sound suddently appeared out of nowhere, you probably have damaged your engine. Bent valve maybe? I would check all the obvious things first...it could even be as simple as minor leak.

 

can it possibly be my injectors?

 

hmm, what setup do you have?

 

Injectors can be loud, but they usually sounds more like a clicking noise..not loud metal on metal. It is really hard to troublshoot a sound over the internet. Even an exhaust leak can sound like rod knock.

 

White smoke with a blue tinge = oil burning.

Turbocharged motor with white smoke & a loud tapping noise = cracked piston crown.

Remove the spark plugs & check for damage at the tip ( closed gap = loss of power) then carry out compression test.

If you have compression, even low it will not be a bent valve.

If you have no compression, stop guessing & strip her down & all will be revealed

 

sorry man, sounds like some bad news....

 

Did you put the bolts back in that hold down the piece of metal inside the plenum? (dont know the official name) I know I forgot to since there were so many bolts laying around after opening the baggy of replacement bolts. Luckily I realized it and removed the top of the plenum and replaced those bolts before I was finished

 

yeah the center piece.....i placed back the bolts. Ill remove the spark plugs and take a look at it.

 

whats the news ?