Weird nocking coming from the engine

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Weird nocking coming from the engine

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Blazer Forums >> Mechanical & Maintenance >> Engine & Transmission >> Weird nocking coming from the engine

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Weird nocking coming from the engine - 1/6/2008 9:53:35 AM

Beaner 88

Posts: 3
Joined: 6/16/2007
Status: offline

Hello everyone...well, for the past 2 weeks my 92 blazer has been having this weird nocking noise coming from the engine, at first i didnt gave it too much attention but i have notice that it has lost some power and im thinking it could be related to the valvetrain, the nocking speeds up as i accelerate and it doesnt stops...any idea what it could be???thanx for any info.

Post #: 1

RE: Weird nocking coming from the engine - 1/6/2008 1:16:42 PM

swartlkk

Posts: 15276
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

Is it a tapping or a knocking. If you have a wooden hammer (handle and all), hit the handle on a table top. That noise (tap) should be similar to a lifter tapping. With the same wooden hammer, hit the head of the hammer on the table top. That noise (knock) would be similar to that of a bottom end knock due to high bearing wear and/or a spun bearing.

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