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New strange noise...
Posted by cmack [Email] (more from cmack) on Sun, 5 Aug 2007 22:10:04
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somewhat disconcerting. It's a strange muffled high pitched "screech" that occurs when engine is warm and under load, particularly going up hills. It seems as if it's syncronized to throttle plate position, not turbo spool. I've checked entire intake system for blockages, leaks in intercooler / plenum hoses, TB mounting bolts, swapped out BPT valve w/ known good valve, checked turbo vac and all other vac hoses. It started after a 1500 mile trip in really hot weather, although I'm not sure that has anything to do with the situation. No codes, drives just fine, but noise makes me a little nuts.
Car is a 2000 2.3 lpt. Any insight would be appreciated.
posted by 75.35.1...
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