knocking sound
07-18-2008, 10:40 AM
#1
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Posts: 70
knocking sound
hey guys just started noticing a knocking sound coming from the engine, you can only notice it at idle. The engine only has 26000 miles on it i know my A/F ratio is right where it shouldbe. Any Ideas? It kinda sounds like a loud tick or a real subtle knock even with your ear next to the valve covers. also there has been no noticalbe loss of power and the engine doesn't run rough at all. Any ideas would be apreciated. Thanks
07-18-2008, 12:06 PM
#2
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Join Date: Apr 2008
Location: Calgary, Alberta
Posts: 80
RE: knocking sound
Are you sure your not hearing the injectors? Take a long screw driver and place one end to your ear and the other on the tapit cover (valve cover) and try to isolate the sound and report back.
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07-18-2008, 04:27 PM
#7
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Join Date: Feb 2005
Location: AZ
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RE: knocking sound
ORIGINAL: Tjeppelin
hey guys just started noticing a knocking sound coming from the engine, you can only notice it at idle. The engine only has 26000 miles on it i know my A/F ratio is right where it shouldbe. Any Ideas? It kinda sounds like a loud tick or a real subtle knock even with your ear next to the valve covers. also there has been no noticalbe loss of power and the engine doesn't run rough at all. Any ideas would be apreciated. Thanks
hey guys just started noticing a knocking sound coming from the engine, you can only notice it at idle. The engine only has 26000 miles on it i know my A/F ratio is right where it shouldbe. Any Ideas? It kinda sounds like a loud tick or a real subtle knock even with your ear next to the valve covers. also there has been no noticalbe loss of power and the engine doesn't run rough at all. Any ideas would be apreciated. Thanks
The knock you hear is the spark plug that is backing out or geting weak threads allowing the pressure of the cylinder to leak past it.
07-19-2008, 07:21 PM
#8
2010 Section Moderator
Join Date: May 2008
Location: Lithia, FL
Posts: 3,328
RE: knocking sound
ORIGINAL: Derf00
Check your plugs, you could be due for blowing a spark plug out of the head. I've read many people get that ticking/knocking in one particular area just prior to blowing a plug out.
The knock you hear is the spark plug that is backing out or geting weak threads allowing the pressure of the cylinder to leak past it.
ORIGINAL: Tjeppelin
hey guys just started noticing a knocking sound coming from the engine, you can only notice it at idle. The engine only has 26000 miles on it i know my A/F ratio is right where it shouldbe. Any Ideas? It kinda sounds like a loud tick or a real subtle knock even with your ear next to the valve covers. also there has been no noticalbe loss of power and the engine doesn't run rough at all. Any ideas would be apreciated. Thanks
hey guys just started noticing a knocking sound coming from the engine, you can only notice it at idle. The engine only has 26000 miles on it i know my A/F ratio is right where it shouldbe. Any Ideas? It kinda sounds like a loud tick or a real subtle knock even with your ear next to the valve covers. also there has been no noticalbe loss of power and the engine doesn't run rough at all. Any ideas would be apreciated. Thanks
The knock you hear is the spark plug that is backing out or geting weak threads allowing the pressure of the cylinder to leak past it.
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