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Jeep Wrangler JK
JK General Discussion
Engine noise plz help
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<blockquote data-quote="Jctomas25" data-source="post: 464984" data-attributes="member: 26289"><p>I am getting this engine noise from, what seems to be, the front, top left part of the engine. It usually happens at low idle, under light load at initial start of a cold engine. It initially sounds like a pulley bearing. I am thinking maybe the Alternator. No codes or anything attributing. Replaced both pulleys and tensioner pulley unit and it’s just getting worse. Can’t pinpoint this sound and don’t understand why it only happens at initial startup on cold engine then dissipates as it warms up. Any ideas?</p><p>When the AC compressor engages creating a load, the noise gets louder, then fades away slightly when the compressor disengages. And goes away completely when up to temp. </p><p>Definitely more noticeable front left side. It’s not exhaust.</p></blockquote><p></p>
[QUOTE="Jctomas25, post: 464984, member: 26289"] I am getting this engine noise from, what seems to be, the front, top left part of the engine. It usually happens at low idle, under light load at initial start of a cold engine. It initially sounds like a pulley bearing. I am thinking maybe the Alternator. No codes or anything attributing. Replaced both pulleys and tensioner pulley unit and it’s just getting worse. Can’t pinpoint this sound and don’t understand why it only happens at initial startup on cold engine then dissipates as it warms up. Any ideas? When the AC compressor engages creating a load, the noise gets louder, then fades away slightly when the compressor disengages. And goes away completely when up to temp. Definitely more noticeable front left side. It’s not exhaust. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Engine noise plz help
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