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Intermittent engine noise help
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<blockquote data-quote="Brandon McFerrin" data-source="post: 8674673" data-attributes="member: 677032"><p>Hi all.</p><p></p><p>I’m running a Fosgate 300x2 to a set of Morel Maximo component speakers. Head unit is a Pioneer AVH-290BT. I’ve had a strange issue for a while, but I’ve had enough and want to solve it. Occasionally when starting my car, I get engine noise on the left channel only. The left speakers don’t play music while this noise is there. It gets louder with vehicle acceleration, and is a high pitch overall. The right side is fine and has never had engine noise. </p><p></p><p>This only lasts for maybe a minute. It will usually go away sooner if I crank the volume all the way or hit a bump. I’ve checked amp ground, and it’s fine. Made sure the rcas were away from power wires. So today when this happened, I popped the trunk and unplugged just the left rca plug. After plugging it back in, noise was gone. What does this sound like? Bad rca cable? Bad input jack on amp? Ground? All equipment is less than a year old, and I’m trying to pinpoint the cause before warranties expire! I have swapped the left and right cables for now to experiment. Hoping it’s something cheap and simple. The rcas are from an NVX airing kit. Any other suggestions or thoughts on what this could be and how to fix it?</p><p></p><p>Thanks in advance.</p></blockquote><p></p>
[QUOTE="Brandon McFerrin, post: 8674673, member: 677032"] Hi all. I’m running a Fosgate 300x2 to a set of Morel Maximo component speakers. Head unit is a Pioneer AVH-290BT. I’ve had a strange issue for a while, but I’ve had enough and want to solve it. Occasionally when starting my car, I get engine noise on the left channel only. The left speakers don’t play music while this noise is there. It gets louder with vehicle acceleration, and is a high pitch overall. The right side is fine and has never had engine noise. This only lasts for maybe a minute. It will usually go away sooner if I crank the volume all the way or hit a bump. I’ve checked amp ground, and it’s fine. Made sure the rcas were away from power wires. So today when this happened, I popped the trunk and unplugged just the left rca plug. After plugging it back in, noise was gone. What does this sound like? Bad rca cable? Bad input jack on amp? Ground? All equipment is less than a year old, and I’m trying to pinpoint the cause before warranties expire! I have swapped the left and right cables for now to experiment. Hoping it’s something cheap and simple. The rcas are from an NVX airing kit. Any other suggestions or thoughts on what this could be and how to fix it? Thanks in advance. [/QUOTE]
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Intermittent engine noise help
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