# Any Toyota techs? Prius question, possibly VVT-i related
**URL:** https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859
**Category:** NYSpeed Automotive
**Created:** [July 26, 2012, 2:32pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859 "2012-07-26T14:32:27Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Coldaccord](https://forums.speedlife.net/u/Coldaccord)
#### Post date: [July 26, 2012, 2:32pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/1 "2012-07-26T14:32:27Z")
We have an 05 Prius with 175k.
Sounds like noisy valves but they are all well within spec. Timing chain, guides, tensioner all appear fine. Possibly intake vvt gear or solenoid?
Common problem?
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### Author:  [@robftw](https://forums.speedlife.net/u/robftw)
#### Post date: [July 26, 2012, 4:34pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/2 "2012-07-26T16:34:40Z")
something like this happened to a Guy at work, his had 199k on it when it happened. I guess the oil pan filter got shitty and started building up sludge and grim, it wasn’t letting enough oil into the motor so it was a noisy valve train.
he replaced it and ran some seafoam through it, no problems since
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### Author:  [@goff](https://forums.speedlife.net/u/goff)
#### Post date: [July 26, 2012, 7:03pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/3 "2012-07-26T19:03:58Z")
Is the noise constant? Generally a bad VVT gear will only be noisey on start up, not all the time.
Assuming its happening all the time, Im going to guess gunked oil pump pickup, and/or gunked up VVT solenoid. I believe there is a screen on either the solenoid itself or the banjo bolt where the oil line feeds into the head.
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### Author:  [@dawn](https://forums.speedlife.net/u/dawn)
#### Post date: [July 26, 2012, 7:19pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/4 "2012-07-26T19:19:38Z")
i miss this toyota tech at work ^^ ☹
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### Author:  [@Coldaccord](https://forums.speedlife.net/u/Coldaccord)
#### Post date: [July 27, 2012, 3:02pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/5 "2012-07-27T15:02:36Z")
Thanks for the responses guys.
Noise is constant, not audible at idle.
Screen for the solenoid is clean, oil pump pickup is clean.
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### Author:  [@nitroinsane](https://forums.speedlife.net/u/nitroinsane)
#### Post date: [July 27, 2012, 3:25pm UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/6 "2012-07-27T15:25:47Z")
Then I would check oil pressure maybe the pump is shitting the bed
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### Author:  [@Boomin99GT](https://forums.speedlife.net/u/Boomin99GT)
#### Post date: [July 29, 2012, 9:08am UTC](https://forums.speedlife.net/t/any-toyota-techs-prius-question-possibly-vvt-i-related/224859/7 "2012-07-29T09:08:20Z")
Usually when the VVT-I sprocket goes bad it sets a code for being over retarded. Same with the solenoid going bad or getting gunked up. I’ve replaced lash adjusters on them for being out of tolerance causing noises at higher mileage but that’s rare. They will “feel” tight but we’re talking something you need a micrometer to check. My 1st instinct is something with the chain system but if you’re sure that looks good then it’s hard to help without looking at it. Keep us posted on what you check and find.