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Help Needed Really strange noise
Found It! Flex boot at turbo to intercooler tube was folded under on the back where it was impossible to see. Don't know when or how it happened but it did. Thanks a lot for everybody's advise. Several of you were almost dead on. Wish I had thought of the "reed valve effect" as a way to...- davemac
- Post #18
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
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Help Needed Really strange noise
Thanks, Big Joe Stock turbo wheel. No gauges. Maybe someday..... ($$) Charge tubes are a possibility. Will pull them and check for cracks. Take a look at the turbo wheel at the same time. Will keep you posted. May be a day or two. Anyplace to go look at the "diy intake"? davemac- davemac
- Post #10
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
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Help Needed Really strange noise
Ok, Thanks for the replies so far. Per suggestion I replaced KN drop in with standard paper filter. No help. Still have the Supertune heavy haul code in the computer. No changes made to vehicle since long before this started happening. As I mentioned, this noise only occurs during...- davemac
- Post #8
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
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Help Needed Really strange noise
Thanks for the welcome! Been here before but it has been so long the system forgot me. Your explanations sound plausible, but why did it appear suddenly? No mods in the last five years. Have a turbo back 4" stainless dual exhaust and a KN drop in air filter which it occurs to me I have not...- davemac
- Post #4
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
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Help Needed Really strange noise
2001 F250 7.3L 160k miles Supertune "Heavy Hauling" code loaded. Recently I have developed a really strange loud squalling noise from under the hood when I get hard into the throttle. Starts at about 2250 RPM. No detectable loss of performance. Seems to come from the area of the turbo or...- davemac
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- Replies: 19
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
