Question about Cars & Trucks
When I am sewing the machine makes a knocking noise, I thought it should be quieter.
Posted by Anonymous on
She was talking about a SEWING MACHINE........Seriously, guys, read the post again.
Posted on Jun 16, 2014
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Posted on Jan 02, 2017
Most likely it is the rockers tapping the lifters. the crankcase has only leftover oil in it at the start, and has to wait for the oil pump to get it there.
I would add a stablizer to your oil...like LUCAS. It may help a bit with a cold engine.
If the knocking is in the piston, then you should see some indication on the spark plugs...like oil or blow-by build up.
Posted on Jan 25, 2010
SOURCE: my 2004 trailbazer makes a
Any knocking noise is more than likely due to worn connecting rod bearings, Crankshaft main bearings or piston or piston pin noise. Connecting rod bearing knocks and piston related noise quite some with warm up, piston noise tends to go completely away after about 5 minutes of run time, but there are exceptions to that run like a cracked piston skirt, crankshaft bearings don't quite very much. It would be my best quests without hearing the noise that you may have either a connecting rod or piston related noise. The best thing to do here is have a trained ear listen to the noise, any experienced technician will know very quickly what the noise is and where it is coming from. These types of noises are only common on high miles engines, with at least 100,000 miles on them is the general run or the engine has been run very low on oil repeated times, or the oil not changed at regular intervals or the engine has been severely overheated. My experience? 35 years as a dealer technican. I'm Master certified in all phases of auto and light truck repair.
Posted on Jul 03, 2011
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