# Trying to diagnose scion issues... **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [December 13, 2008, 1:29pm UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674 "2008-12-13T13:29:52Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Bucker](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bucker/32/7379_2.png) [@Bucker](https://forums.speedlife.net/u/Bucker)\ **Post date:** [December 13, 2008, 1:29pm UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674/1 "2008-12-13T13:29:52Z")
My 2006 scipn tc has 34000 miles, 15000 oh which have been supercharged. I’m running a 10.5lb pulley, with a tuned aem f/ic piggyback. I did my last oilchange (redline 10W30 oil) last weekend. During the week I noticed a loss of power, especially out of boost, smoke (I think it is white), a flashing check engine light, and the oil I drained from my catch-can looked like chocolate milk. Head Gasket? I’m thinking maybe, except I have not yet noticed a drop in coolant levels. The car also idles poorly now. I have not yet had the chance to do a compression test either. If anyone has suggestions, or any input it would be appreciated!! Thanks. ---
**Author:** ![jetlounge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jetlounge/32/4994_2.png) [@jetlounge](https://forums.speedlife.net/u/jetlounge)\ **Post date:** [December 28, 2008, 8:48pm UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674/2 "2008-12-28T20:48:54Z")
sounds like gasket. have compression test done. ---
**Author:** ![psychopjv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psychopjv/32/7251_2.png) [@psychopjv](https://forums.speedlife.net/u/psychopjv)\ **Post date:** [December 28, 2008, 9:02pm UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674/3 "2008-12-28T21:02:57Z")
blinking light = misfiring. chocolate milk = oil and coolant mixing together. loss of power with the combined symptoms = usually a headgasket. ---
**Author:** ![LZ1](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@LZ1](https://forums.speedlife.net/u/LZ1)\ **Post date:** [December 29, 2008, 4:03am UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674/4 "2008-12-29T04:03:39Z")
You sir need a head gasket. ---
**Author:** ![SOLITUDE](https://avatars.discourse-cdn.com/v4/letter/s/c37758/32.png) [@SOLITUDE](https://forums.speedlife.net/u/SOLITUDE)\ **Post date:** [December 29, 2008, 7:01am UTC](https://forums.speedlife.net/t/trying-to-diagnose-scion-issues/59674/5 "2008-12-29T07:01:44Z")
head gasket…ftw