ckyconan2003

iTrader: (2)

you dont really have to buy an ENTIRE set, but i dont think you have a lifter problem, im pretty sure you just need to get those valves readjusted. A stuck lifter can cause binding in the internals and cause huge amounts of vibration and whatnot. If it doesnt sound like a lawn mower under acceleration then get the valves adjusted or do them yourself, i suggest the engine running method if you're doing them yourself. But i highly doubt you have an exhaust leak.

emj2006

iTrader: (5)

U need to record another video of the noise, but this time have it revved a little so it could give us a better clue.

Red1996SS1519

iTrader: (7)

This noise is different (Deeper) than any type of exhaust/headers leak that I have experienced (And I have so many times). Unless you have a HUGE hole in ur exhaust system which I doubt it, this is not an exhaust leak. Your Valves buddy.

GIVE EM' THE BIRD

iTrader: (1)

adjust your valves. start on the side that the noise is most pronounced (if possible) after you get your valve cover off (huge PITA with stock air lines) with the car running listen to your valves by ear. if its a valve the noise will be distinct in one area and you should be able to pinpoint which need adjusted.

97LT1

iTrader: (3)

again I think it sounds like klacking which indicates loose valve train. You would hear more of a PSSSST PSSSST air sound with exhaust. Have you adjusted your valves on that side? I would have that valve cover pulled and have them adjusted ,before assuming lifters are bad.

LT1

iTrader: (1)

I had a similar sound, found the black hose from the air pump to exhaust pipe had gotton hard from heat and cracked underneath. Noise would get louder when I accelerated.

Ironxcross

iTrader: (8)

i adjusted the valves and checked for exhaust leaks several times... still have no idea..

Ironxcross

iTrader: (8)

im going to check for that too now.

emj2006

iTrader: (5)

When exactly did this noise start happening?? Was it right after you installed headers or what??

Ironxcross

iTrader: (8)

pretty much. it was worse before, but now it just ticks, not really too loud, but definately enough to notice, im thinking of taking off the drivers side header to do the seal again

Always2Slow

iTrader: (8)

It's in your valve train open up the valve cover and check the rockers first.

emj2006

iTrader: (5)

When it was worse before, what exactly caused it to tick??

Ironxcross

iTrader: (8)

well, i had massive exhaust leaks at the header gasket. i fixed it, and i thought i had them all buttoned up. apparently not, because it does sound like an exhaust noise.

9formula4

iTrader: (5)

sounds to me like a loose rocker arm. Get that vc off with it running and check it out. Also watch the pushrods to see if there is slack in one and if its "tapping" instead of moving it smoothly.

Rocky70304

iTrader: (4)

I had the same noise exact noise on mine when I did my mid-tube install, I had left one of the d/s flange bolts just loose enough to leak..

Ironxcross

iTrader: (8)

mid tube?

mhayes2344

iTrader: (3)

I think he's talking about mid-length headers. It doesnt sound like a stuck lifter to me...either exhaust leak or rocker arms...or a combination of the two.

Ironxcross

iTrader: (8)

Well... I got it. A loose spark plug!

maxgee

iTrader: (5)

Those who stated exhaust leak where correct, just not your headers.
Glad you found the problem.