Strange intake noise.... - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 01-12-2013, 04:31 PM Thread Starter
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Strange intake noise....

Wife and I went snowshoeing up in the hills today, taking advantage of some gorgeous winter weather we are having - albeit a bit nippy...-6 C

On our way home, we stopped at a gas bar for some fuel and some relief...and as we drove away, the truck was making a strange noise...reminded me of when we were kids and we would flip the air cleaner-cover to get some intake roar out of our pathetic little Datsun engines.

This continued all the way home. I usually hear this same sort of noise, from time to time when I drive away after a cold start, but it usually disappears after 5 or 10 minutes. Our fuel-stop was 45 minutes from our house...

Is this "normal" or is it something I should be concerned about? The truck ran fine otherwise.

97 F250 PSD...6637 Filter upgrade...3" Diamond Eye DP...DFuser EBPV eliminator...Improved "Blue" CPS...
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post #2 of 3 Old 01-12-2013, 05:26 PM
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May be that your Exhaust Back Pressure Valve (EBPV) is sticking closed. Did you notice a lack of power too?

Matt
'97
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
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-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, ADRENALINE PUMP
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-Oh, and a 2015 F350 6.7L DRW 4x4


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post #3 of 3 Old 01-12-2013, 05:42 PM Thread Starter
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Not really...mind you it was fairly FLAT all the way home, except for one decent hill and it pulled without a problem. I was empty at the time, other than two passengers and gear.

97 F250 PSD...6637 Filter upgrade...3" Diamond Eye DP...DFuser EBPV eliminator...Improved "Blue" CPS...
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