2004 Mitsubishi Endeavor Upper Engine Noise
Hello, I am posting a video of another 2004 mitsubishi endeavor that sounds identical to mine. The engine sounds horrible, coming from the upper cam area. I have had timing belt and idler pully changed, hot oil flush and stp oil treatment. At 4200 ft elevation the engine is brutal sounding, always...below 1600 rpm. When I travel over 100 ks in to other towns at 2000 ft less elevation and restart the engine, the noise goes away and does not come back until i am home again at high elevation. Is there a timing altitude sensor that throws the engine out of time? You would throw the engine away at 4200ft but at 2000ft it runs perfect? Soo stumped. Hopefully someone can point me in the right direction...as this is not an isolated incident for sure. Thanks for any help.
http://www.youtube.com/watch?v=G6LOR6ExH1A