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Old 11-16-2009, 06:08 PM
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Question Low boost code. Where would YOU check

Where are the first places You'd check? I don't have the actual code in front of me but I'll get it if needed. Truck DOES feel down on power somewhat. It's strong like a 7.3 should be I guess, but it DOES feel kinda down on power. Fuel mileage isn't all that great either. I'm thinkin' if the boost is up where it needs to be then the mileage might go up some too???

Thanks
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Old 11-16-2009, 06:44 PM
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Exactly. Check for boost leaks or exhaust leaks.
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Old 11-17-2009, 07:25 AM
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Originally Posted by jesilvas View Post
Exactly. Check for boost leaks or exhaust leaks.
No. That was my question.

WHERE are good places to check? Anything specifically known to cause a low boost code to be triggered?
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Old 11-17-2009, 07:53 AM
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My bad. All the blue boots in between the compressor side of the turbo and the heads on the motor where the orange boots are.
If there is soot around the headers or firewall where the up pipes are, then there is an exhaust leak.


Check the boots on the end of the red tubes and also the boots on the bottom of the pink outline, the spider.
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Old 11-17-2009, 08:00 AM
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That's a nice illustration. Thank You.

So, when I check, will there be an obvious pressure of air that I'll feel right away and that I'll know about right away?
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Old 11-17-2009, 08:21 AM
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No cause with it not under a load it won't boost much at all. You just have to make sure the boots are clamped on tight, are all the way on, make sure there are no tears.
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