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Old 10-25-2011, 03:53 AM
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Am I missing something?

Over the summer, bought a 7.3 excursion, has all the toys Garret turbo, afe intake,ps chip, big exhaust and so on. What is bugging me is my 5.7 triton f150 pickup tows our family camper hands down better than this truck. I run into issues mostly on hilly sections, my egt gets up into the 11s so quickly I find myself crawling up hills, am I doing something wrong? Should I have something checked? For what it's worth the camper and everything is around 8500 lbs loaded (heavily). But it still struggles with it empty.
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Old 11-14-2011, 05:52 PM
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How many miles are on the 7.3? What chip? Usually 7.3's pull pretty dang good! What's your gear ratio? Honestly, I've had 2 trucks with the 5.4 triton and it's a gooooood motor IMO... But the 7.3 should be competing! What kind of air filter? Good and clean?
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Old 11-14-2011, 05:54 PM
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What kind of boost are you running also?
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Old 11-14-2011, 07:12 PM
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garrett turbo is stock.....
did you mean to say TS chip? what setting are you towing on? what EGTs are you seeing unloaded?
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Old 11-15-2011, 05:38 AM
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Yes sorry, TS 6 position chip, the Garret is the ball bearing turbo unit, I have an AFE intake and it was cleaned and oiled 2k miles ago. The truck has about 118k on it now. Bost runs pretty low, I am lucky to get it to 15 and it is mostly in the 2-5 range. I am thinking I have an issue with my up pipes, I have all the signs of the leaking under the hood. I am looking at a replacment set now, but I just need to convince myself to part with the money.
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Old 11-15-2011, 09:40 AM
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Your up pipes are the exhaust pipes running from the manifolds to the back of the turbo. If they are leaking you'd see soot on the firewall.
What do you mean 'signs of the leaking under the hood?'
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Old 11-15-2011, 09:56 AM
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I think you have a boost leak. 15 psi is pretty low for your max with a chip. I see 15 just leaving red lights hard unloaded.
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Old 11-15-2011, 10:39 AM
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Actually have soot at the connection joints and a strong diesel exhaust odor when I am not moving..how do I chase down a boost leak?
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Old 11-15-2011, 11:58 AM
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Well you can remove, clean and check the rubber intercooler boots but if you have noticable soot at the up pipe connection then that is most likely your problem. I just replaced the donut gaskets instead of buying the $400 IH bellowed up pipes.
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Old 11-15-2011, 02:35 PM
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I considered doing only the gaskets but there is something attractive about not having to do the repair again with the bellowed pipes.. How long did it take you?
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