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Discussion Starter #1
Ok so a friend of mine has an 02 lb7 that is giving him fits. Mileage is only around 15 on the highway and it really doesn't have the power it should. I'm going to his place tomorrow afternoon to read the injector rates with my PPE and just wondering if there's anything else to maybe look for. I'll be taking some cleaner for the MAF sensor with me. The truck doesn't smoke or anything, it just runs like a dog. He has a diablosport programmer on it and that's it.:drink
 

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when did he change his fuel filter last?
 

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Discussion Starter #3
not too sure but I test drove the truck before he bought it...I was actually looking into purchasing it...and it really didn't seem to have the pep it should.
It probably has 125k on it.
 

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that would be the first thing id do is fuel filter, its usually the first thing to cause a lack of performance
 

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Discussion Starter #5
Just texted him, he said he has replaced the filter several times recently.
 

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my guess is not getting fuel or injectors. hurt mine a lot i know that.
 
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