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2002 Buick Rondevoux 3.4 V6. Makes a noise from the engine like a buzzing sound. Sounds seems to come from power steering pump. I had it changed twice and still have the sound. Car is quit for twenty minutes and then sound appears.It sounds like it could be coming from the transmission, but when you put the car in park and rev. the engine you still have the sound. Was told that on the 2002 Rondevoux the problem could be the fuel pressure valve (release valve) Can you give me an answer

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The GM 3.4 v6 engine is known to have Intake manifold gasket failure problems. IMHO, I do not believe this is fuel pressure release valve problem, since you would have fuel leaking. If it is more of a whistle rather than buzzing, i would suspect manifold gasket.

Posted on Oct 02, 2009

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2002 Buick Rondevoux 3.4 V6. Makes a noise from the engine like a buzzing sound. Sounds seems to come from power steering pump. I had it changed twice and still have the sound. Car is quit for twenty...


if the noise is different in park, rev or drive , its in the trans. if no difference, take the belt off and see if its still there, its just a process of elimination. the fuel pressure regulator should have a vacuum hose on it, see if it changes when the hose is removed (higher pressure)

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