Hissing noise from engine?
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Senior Member
Joined: Nov 2017
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2000 ML55 AMG 2001 CLK55 AMG coupe 2002 CLK55 AMG Cabriolet 2025 BMW M2 6MT
Hissing noise from engine?
Hey guys there's a pretty clear hiss coming from the engine by the power steering pump/ac compressor, maybe a vacuum line, mot etc? Idk any thoughts to experience?
Installed a new hvac control unit and keep throwing code e61 419 for electro magnetic clutch, research indicates people have issue with compressor/ AC not working etc but my AC is finally going to be blowing cold for the first warm weather as it is now...hopefully.
any thoughts or experience?
Installed a new hvac control unit and keep throwing code e61 419 for electro magnetic clutch, research indicates people have issue with compressor/ AC not working etc but my AC is finally going to be blowing cold for the first warm weather as it is now...hopefully.
any thoughts or experience?
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Joined: Feb 2017
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From: Kansas
1999 SLK 5.5L 6-speed, 1993 300 SE
There aren't any vacuum lines in that area that I know of (by the PS pump). however, there are multiple coming from the front of the intake manifold, including one that is tricky to get to coming from the bottom that could harden and crack pretty easily.
Thread Starter
Senior Member
Joined: Nov 2017
Posts: 321
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2000 ML55 AMG 2001 CLK55 AMG coupe 2002 CLK55 AMG Cabriolet 2025 BMW M2 6MT
lol tribotex baby! (maybe) i feel like there is actually a difference in the sound and vibration level of the engine after treatment. Intake manifold is oem new with a little over 7k miles on it, hope its not that. does it sound like a vacuum leak to you?
Member
Joined: Feb 2017
Posts: 171
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From: Kansas
1999 SLK 5.5L 6-speed, 1993 300 SE
Tell me about this Tribotex. My engine has almost the exact same amount of miles as yours and I put it in my SLK without even touching it.
Last edited by loggato; May 10, 2019 at 11:26 AM.
Thread Starter
Senior Member
Joined: Nov 2017
Posts: 321
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2000 ML55 AMG 2001 CLK55 AMG coupe 2002 CLK55 AMG Cabriolet 2025 BMW M2 6MT
hmm interesting...will have to investigate further... any way you could pinpoint exactly what youre talking about when you say the towers?
are you refering to these diverter valves? https://www.fcpeuro.com/products/mer...mer-0021403660
are you refering to these diverter valves? https://www.fcpeuro.com/products/mer...mer-0021403660
Member
Joined: Feb 2017
Posts: 171
Likes: 13
From: Kansas
1999 SLK 5.5L 6-speed, 1993 300 SE
hmm interesting...will have to investigate further... any way you could pinpoint exactly what youre talking about when you say the towers?
are you refering to these diverter valves? https://www.fcpeuro.com/products/mer...mer-0021403660
are you refering to these diverter valves? https://www.fcpeuro.com/products/mer...mer-0021403660
before I got it sealed up good, I noticed that it was exhaust pushing out of it instead of vacuum sucking in.
