MeanWS6

Yesterday, I was driving home from work and noticed the car was "chugging" when accelerating (not at WOT), I pulling in the garage and could hear an EXTREMLY loud tapping sound. I know my valvetrain makes alot of noise with my setup, but this was noticably louder. Also, I have front and rear valve cover breathers and the front breather was smoking. I grabbed a towel and pulled it off and the towel was marked with oil - so oil is coming through the breather. Is this normal? Do they need to be cleaned - if so, how? I only have ~500 miles on my new setup and ~10 WOT runs on it. I am taking it easy until I felt it was broken in.

This morning, I went to start it and it was idling like $hit, so I backed it back into the garage and took the winter beater

what 'cha think?

30th droptop

iTrader: (-1)

Sounds to me like something in the valvetrain let go. The "chugging" may be a missing cylinder. Any codes?

I think I'd get out my stethoscope and isolate the source of the noise. Assuming it's coming from one of the heads, I'd pull the valve cover and have a look.

GuitsBoy

iTrader: (4)

Hows your oil level and pressure? If either is not up to par, this could be baaaaaaaaaad.

technical

Pull the valve covers at least. See if a spring or rocker broke then check the pushrods. Hopefully it's top end and not bottom end.

ArcticZ28

iTrader: (14)

I had the same thing happen to me, except mine was a broken off valve in the cylinder... yours probably isn't that bad but could still be a bent valve (hence the smoke coming out the top because it's not opening and closing correctly for the intake and exhaust).

Pro Stock John

iTrader: (34)

Hopefully just a broken valvespring Ryan, you might want Tom and those guys to check it out. I would not drive it.

MeanWS6

well, this morning I started her up to listen closely for a broken spring, but the loud ticking sounds does NOT seem to be coming from the engine, rather under the car or exhaust (sorta like tick-puff-tick-puff real quick) and when I started it I had alittle black smoke.

Drove around for a few mins and got this code:
P1153: Heated Oxygen Sensor (HO2S) insufficient switching bank 2 sensor 1

Still idles like crap and get a chugging feeling when starting to accelerate. No WOT runs.

So, I am thinking exhaust leak. My exhaust BANGS hardcore - plan on addressing that today/this weekend also. Got called into work today so I will a-tap this afternoon and check for obvious exhaust leaks

777

iTrader: (21)

umm sounds to me like you have some bad 02's

MeanWS6

Figured that was part of it
Forgot to add I am also getting the other side, P1153

But would bad O2's cause the rough idle and crappy gas mileage

GuitsBoy

iTrader: (4)

Yes! and Yes!