SO loud!
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SO loud!
I have a 2004 Excursion 6.0. Recently on a trip there was a pop/bang noise and then a lot of noise when I was pulling power. Its like a wooshing air noise. It is louder the more I press the accelerator as well as louder when more power (as in uphill) is needed, but completely normal when coasting.The sound is coming from the drivers side dash area when I sit in the driver's seat, but the driver's firewall when I am under the hood. I've looked at everything accessible but no luck with finding a broken anything.
I've read about the heater core being low and causing a noise. I checked the coolant, did add some, and parked it with the nose up for a bit. Didn't help.
I believe it is pre turbo as the performance is not any different, its just very loud. Before I start removing things (like coolant reservoir) to get in further, any suggestions or thoughts? I feel like this should be an easy thing to spot but I just can not find it. Help!
I've read about the heater core being low and causing a noise. I checked the coolant, did add some, and parked it with the nose up for a bit. Didn't help.
I believe it is pre turbo as the performance is not any different, its just very loud. Before I start removing things (like coolant reservoir) to get in further, any suggestions or thoughts? I feel like this should be an easy thing to spot but I just can not find it. Help!
Cross-Country
Joined: Oct 2020
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From: West Virginia
^ CAC tubes was also what I would suggest you check. At some point they switched to plastic tubing (not sure why) which is prone to tears/breaks over time, and when they go they can scare the crap out of you with a loud bang. If cracked, it might not open up until your CAC tube is under pressure which could be the reason why you dont hear it when you coast.
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Not throwing codes - forgot to mention that one. Since it wasn't throwing any codes, I drove it 500 miles home. Only difference was the noise.
The CAC tubes have been replaced with metal tubes. There is a little oil residue on the rubber boot on the top front of the engine for the pipe that goes down next to the air filter. I will look at that first to see if I can see any failures since it's right there.
Beyond that, I think I'll have to get into it. My guess is the up pipe on the driver's side firewall from the noise I hear since you don't have any other revelations. Just wanted to ask everyone in case there's a "well duh" thing that happens that I couldn't find. Thank you both for the help and I'll report back when I figure it out!
The CAC tubes have been replaced with metal tubes. There is a little oil residue on the rubber boot on the top front of the engine for the pipe that goes down next to the air filter. I will look at that first to see if I can see any failures since it's right there.
Beyond that, I think I'll have to get into it. My guess is the up pipe on the driver's side firewall from the noise I hear since you don't have any other revelations. Just wanted to ask everyone in case there's a "well duh" thing that happens that I couldn't find. Thank you both for the help and I'll report back when I figure it out!
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Dukhunt22
1999 - 2003 7.3L Power Stroke Diesel
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Mar 28, 2007 12:06 PM
