What is the Hissing noise??? - Ford Powerstroke Diesel Forum

 
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post #1 of 4 Old 02-12-2012, 09:10 AM Thread Starter
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What is the Hissing noise???

I have a 01 7.3 only mods are a AFE intake and a 5'' MBRP straight turbo back system. this winter in new england has been mild but we have had a few cold mornings. My truck starts fine if i keep it pluged in when it idles it has a crazy hiss through the exhuast if you hit throtte it goes away it only does it when its below like 20 or so. how can i corect it???
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post #2 of 4 Old 02-12-2012, 09:13 AM
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EBPV. Usually closes to help warm up the truck.

1999 F-350 ECSB ZF6 4x4 Halfbreed:
Mods:
PHP Pheonix 6-Position Chip
Glowshift gauges (boost/egts/oil psi/fuel psi/oil temp/coolant temp/voltage
DIY 6637 Intake
5" Diamond Eye exhaust
05+ Harley Davidson Headlights
55w 5000K HIDs
Future Mods:
Shocker horns
SRP1.1
Irate turbo setup
S366
DIY fuel system with regulated return
and saving to build a mid 500hp rig.
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post #3 of 4 Old 02-12-2012, 04:45 PM
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Me too

My 7.3 does the same thing when anywhere below 30f. Only after 10 minutes do I get the turbo back.

Louisville, Kentucky
2000 7.3
179,000 100% stock
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post #4 of 4 Old 02-12-2012, 04:48 PM
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There is a sticky or two for this :
Winter Operation, Hard Starting, Hissing Sound Etc...
Troubleshooting GPR & GP's



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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