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#1
09-11-2006, 06:29 PM
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Valve Rattle:
1989 Buick Regal
2.8 MPFI V6 70,000mi Engine Oil light flashes sporadically. No smoke, no leaks, no smell. Intermittent knocking sound coming from valve cover. Sounds like I need a valve adjustment. What do repair shops usually charge for this? ~L 
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#2
09-12-2006, 07:43 AM
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Re: Valve Rattle:
Welcome to AF!!
Actually there is no adjustment on the valves of this particular engine. I think your issue is directly related to the oil light coming on. Low oil pressure will cause the noise you hear and it probably is due to oil starvation. I would check about an oil pump replacement before dealing with the valve issue as I think that will solve the problem. Oil pump replacement $300 to $600 depending on the shop and labor rate.
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