loud nocking comeng from engine

2004 BUICK RENDEZVOUS
50,000 MILES
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DODGEGIRL1
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loud nocking comeng from engine
Jun 4, 2012 at 4:23 PM
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SATURNTECH9
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Where is the kncking coming from the bottom or top?
Jun 4, 2012 at 4:25 PM
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DODGEGIRL1
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i am not really sure it seems like it comeing from the top
Jun 4, 2012 at 4:28 PM
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SATURNTECH9
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We have to narrow down to the engine or something driven by the belt.You can use a long screwdriver as a listening device.Just be careful where you put the screwdriver.
Jun 4, 2012 at 4:35 PM
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DODGEGIRL1
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i have put a screwdriver to the top of the engine and it sounds likes it comeing from there it sounds like a taping and when u give it gas the taping gets louder
Jun 4, 2012 at 4:39 PM
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SATURNTECH9
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So from under the valve cover?
Jun 4, 2012 at 4:42 PM
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DODGEGIRL1
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yes
Jun 4, 2012 at 4:45 PM
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SATURNTECH9
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Both valve covers or just one?Also how loud is the noise?
Jun 4, 2012 at 4:51 PM
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DODGEGIRL1
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i just checked the front one its a loud noise i would say out of 1-10 10 being bad its a 8
Jun 4, 2012 at 4:53 PM
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SATURNTECH9
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I would check both vave covers could be the timing chain lifter etc.
Jun 4, 2012 at 4:55 PM
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DODGEGIRL1
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ok i will half to check that out
Jun 4, 2012 at 5:07 PM
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SATURNTECH9
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Keep me posted.
Jun 4, 2012 at 5:10 PM
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