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 Old 09-10-2011, 09:52 AM   #1
 
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Default Need Help Diagnosing this Noise on Startup!

Ok, car has been making a metallic noise similiar to loose change on startup recently. I did some research on the forum and decided its most likely the vvt actuator. since car is still under warranty, i took it to the dealer. They confirmed my suspicions and said it was the vvt actuator, or so I thought. after changing both the actuator, the timing chain and timing chain tensioner, its still making the noise on startup!!!! I am completely lost now, the noise is still there but it does seem like the pitch has changed slighly. I recorded a video and it does seem to come from the HPFP area. I have a CP-e pump and i have had it for about 5k miles or so. I logged some pressures and my pressures are still very strong. can anyone help me with this?




Note that the noise is only there for a short time, then it goes away and i wont hear it again until the car has sat for at least 6 hours or so to completely cool down.
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 Old 09-10-2011, 12:36 PM   #2
 
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Vvt is a loud tick tick tick tick on startup as the pin misses the it's seat a few times.
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 Old 09-11-2011, 07:16 AM   #3
 
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yea i could have tod you thats not VVT as I had the VVT failure and had it fixed under warranty. take it back in to the dealer what are you waiting for? Idk about the FP internals, I would go back to stock and see if the sound goes away. If it does, u found ur issue, if not...dealer is ur best friend!!
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 Old 09-12-2011, 11:55 AM   #4
 
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I have had my car at the dealer twice and they have yet to figure it out. each time they have had it for almost a week and cannot seem to figure it out. I would go back stock for fuel pump but I bought a complete pump and had to return my old one for a core. Im to the point that Im just going to wait until whatever is making that noise fails and then it will be easier to track down the problem or sell it, which ever comes first.
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