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Old 05-28-2009, 06:51 PM
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low oil pressure/loud exhaust

so have any of you noticed that your exhaust sounds different until the oil pressure get to normal pressure. maybe i have a problem with oil, maybe not, but it takes 2-3 seconds for the pressure to go up. in that time my exhaust sounds different. i have only noticed this since the new exhaust so maybe its normal. how about you guys? the turbo sounds sweet now. my neighbor didnt know i had a diesel till i changed the exhaust and he heard the turbo.
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Old 05-29-2009, 09:36 AM
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When i have just the down pipe I can hear the eshaust sound chage after 2 sec. I think that is the egr system engaging. Also the sensor for oil psi turns on about the same time.

I dont think you have a problem. its just the timming of the 2.
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Old 05-29-2009, 10:02 AM
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I believe its the turbo your hearing. When you first start the truck it won't spin until a couple seconds go by. I can easily notice it on my truck since its straight-piped through stacks.
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Old 05-29-2009, 10:59 AM
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03 blue is right. the turbo isnt spinning at first and it takes a second to get going.
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Old 05-29-2009, 01:01 PM
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The VVT takes a few seconds for the computer to engage it. If you have a "smoke switch" on the truck you can turn the turbo on and off and it sounds the same.

When I start mine there is an audible click, then the turbo starts spooling away.
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Old 05-30-2009, 11:10 AM
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that all sounds right. i figured it was nothing to worry about. i cant believe what a difference the exhaust makes. i want to delete the muffler but too chicken
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Old 05-30-2009, 12:04 PM
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Quote:
Originally Posted by EssentialJuice View Post
that all sounds right. i figured it was nothing to worry about. i cant believe what a difference the exhaust makes. i want to delete the muffler but too chicken
The way I decided to delete both was just unbolting the whole exhaust right before the cat and listening to it. Then I took it all off the hangers and threw it in the bed, drove to the muffler shop and had em straight pipe it and slip it back in. Grand total: 35$
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Old 05-30-2009, 06:47 PM
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Quote:
Originally Posted by 03-blue-Powerstroke View Post
I believe its the turbo your hearing. When you first start the truck it won't spin until a couple seconds go by. I can easily notice it on my truck since its straight-piped through stacks.
Or that too sorry. forgot to mention the turbo
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