GOODFELLA

Hello CL member, I recently came across a issue that makes me .
Yesterday I drove to work and the car was fine and when I go to start my car after i leave my job i felt some weird sound coming from the exhaust so i rev'd it a bit then, a knocking sound starting coming from the top of engine.


Sound similar to this guys issue without the first ten second delay
If any one could help it would be highly appreciated


Thanks

AristoKing

If the knock is really bad then it sounds like it could be your pistons which would mean rebuild or new engine sorry for the bearer of bad news but before that conclusion can be met.

1) make sure your car has oil if the car is really really low on oil than it would make that noise as well and maybe you have and oil leak.

2) it could be you head valves. I really don't know how to check those.

Check that first.

ThomasGS4

iTrader: (19)

Are you 100% positive that it's the engine knocking? Could be an exhaust leak.

maxXx430

get an octane boost and give that a shot. maybe you gas sucks

vwynn

iTrader: (4)

whenever posting a thread about some noise make a video

a high quality so that we can guess a little better.

GOODFELLA

Thanks, no oil is leaking at all and the oil was very low when i checked after it started knocking. i drove the car home and checked it today and they oil level was fine.. So I found that very strange!

GOODFELLA

Thanks ,No exhaust leak just recently got a new custom exhaust system.

GOODFELLA

Thanks, For as long as i owned the car I have only used premium gas and from the same shell gas station. But i will give it a try

sakataj

iTrader: (182)

what guys issue?

OP if u recently had exhaust work done maybe you should make sure u do not have a exhaust leak or a bolt fell out or something from the exhaust. after installing my greddy i lost a bolt someplace and developed a exhaust leak

GOODFELLA

I actually found this video and it sound just like this with out the delay of knocking in the first 10 second of this video .

http://www.youtube.com/watch?v=C2ilKNxCXMw

L3XOTIC

It can still be an exhaust leak even though you got a new custom exhaust. But youd be able to disitnguish engine knock and exhaust leak.

That video is more of like a ticking sound. And engine knock makes a sound when you rev the RPMs up a bit.

AristoKing

I agree with a good quality video is the only real way we'll be able to help out. No oil leak is a good thing.

GOODFELLA

I did the oil change no difference at all.
After 12 second in to the video off youtube you will hear the exact same sound my car is making. I left the car running for like 10 minutes and every so often i would hear a popping noise from the exhaust. I also felt like the was about to die a times.

FrankT

Sounds like a stuck valve...

I would do a leak down compression test.

Good luck and let us know.

GOODFELLA

Thanks

I was told by a friends that it might be the valve yesterday night. How do you do a leak compression test?