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Old Oct 28th, 08, 03:51 PM   #1 (permalink)
 
Join Date: Oct 2007
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Exclamation Engine Tapping!

96 camaro.. v6 3800 liter..
it's making a tapping noise from the top!
i changed the oil pump..
nothing! the oil is full and the check engine light is on.
and flashing! maybe the rocker arms?
or the knock sensor.
a miss fire the spark plugs and wires are good..
i changed them a few months ago!
any idea please help..
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Old Oct 31st, 08, 06:37 PM   #2 (permalink)
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Re: Engine Tapping!

flashing check engine light means there is a misfire

how loud is the tapping?

can you get a video?

im betting you have a collapsed lifter somewhere
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Old Nov 2nd, 08, 03:39 PM   #3 (permalink)
 
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Re: Engine Tapping!

it's coming from the block..
seems like a rod bearing has clearance in it..
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Old Nov 3rd, 08, 01:35 PM   #4 (permalink)
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Re: Engine Tapping!

Use a mechanics stethosope or long screwdriver to the ear...taps and stuff locations can be very desceving, espec if a collasped piston or bearing deep inside.
And check from underneath to.
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Old Dec 13th, 08, 08:09 PM   #5 (permalink)
 
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Re: Engine Tapping!

I got the same problem w/my 99 my mechanic says it's a piston w/build up on it that needs to be re-seated. needless to say about a $1000 to tear an engine apart to stop a loud tapping. Car only has 56,000 miles on it to I should stay w/the jap car I have it has 166,000 and no engine problems.
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Old Dec 13th, 08, 10:33 PM   #6 (permalink)
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Re: Engine Tapping!

Quote:
my mechanic says it's a piston w/build up on it that needs to be re-seated.
We has a Ad on TV...mechanic holding a spark plug " we had to remove the sump, then pull the crank and piston, found dirty spark plugs"

"A piston with build up " IF that is true means carbon build up...carbon build up doest cause tapping, very unlikely with modern engine maintaince computers...and simply by pporing a small steam of water into the engine while running will re carb it
And "re seat it" re seat a pistion???

1st simply do what I suggest in my post above yours...locate the tap.
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