[98Geldog]

I CAN NOT LIVE WITH THIS TAPPING NOISE ANYMORE!!!

I need a fix. Don't care about cost. Engine runs perfect. What should I do? It's embarrassing sitting at a stop light with a nice eldo and all u hear is the engine tapping.

 

[Submariner409]

Could be anything from a cat stuck in the accessory drive to a crankshaft that's ready to fall out the bottom of the oil pan.

Could you be a bit more specific as to "tapping" ???

 

[98Geldog]

A Tap at cold start and then on and of during driving. It's loud at the bottom of engine. I'm thinking exhaust cams. I really need this fixed.also a puff if smoke(oil) when taking off every do often.

 

[2manyhotrods]

Most likely a carbon knock or possibly a collapsed piston skirt as worse case scenario.
I've owned many Northstar's cold knock..

.

 

[98Geldog]

Bad thing about it, it's only been 3yrs since rebuild. And has been tapping since. I do WOT and I've used rotella, with no good result. So should I get another engine rebuilt or what. Just looking for insight before I make a decision. Thanks

 

[basscatt]

I CAN NOT LIVE WITH THIS TAPPING NOISE ANYMORE!!!

I need a fix. Don't care about cost. Engine runs perfect. What should I do? It's embarrassing sitting at a stop light with a nice eldo and all u hear is the engine tapping.

===================================
take it to MIDWEST CADILLAC REPAIR in Palatine -
Joe Blau (847) 776-1234 -

 

[98Geldog]

Been there

 

[basscatt]

Been there

==========================
so - what did he say?

 

[Ranger]

It's loud at the bottom of engine. I'm thinking exhaust cams.

Exhaust cams are at the top of the engine.

Have you listened with a stethoscope?

 

[98Geldog]

He found one bad exhaust cam on top but didn't remove the engine. Replaced that one but it's still tapping. I meant intake ranger sorry.

 

[maeng9981]

All cams are at the top of the engine. It would be helpful for us to diagnose if you could post a video of the noise you are describing.

 

[Ranger]

Yeah, intake or exhaust is irrelevant. If it's louder at the bottom, I would not think cam.

 

[98Geldog]

I'll post a video after the snow storm we just had is over. Thanks

 

[Ranger]

Any chance this could be a pulley bearing?

 

[98Geldog]

Anyone know how to post video from an iPhone?

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http://youtu.be/ZUuSAao9nqw
Video of engine

 

[scott f]

Hmm, no audio here..
Man, you're engine compartment is dirty..


Sent from AutoGuide.com Free App

 

[Submariner409]

That tap (in the video) sounds suspiciously like a worn out cam follower/cam lobe.

How many miles on that (flat tappet) engine ? .............

 

[98Geldog]

180,000, car has been sitting for about a year , haven't had a chance to clean and spray it down with arm oral yet.

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180,000, car has been sitting for about a year , haven't had a chance to clean and spray it down with arm oral yet.

And the buzzing noise the PVC valve does I can't figure out either.

 

[Submariner409]

Clean the PCV with choke cleaner spray and blow it dry. Check the dirty air (manifold vacuum) line and connectors/elbows for leaks. If the valve continues to whistle or whine, get a new one. $2.50. Engine specific, so look it up in the parts guide that hangs on the oil/air filter/PCV shelves.

 

[Ranger]

Might be the grommet (poor seal) that the PCV is set in.