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I purchased a 2006 vin 2 “LLY” lbz. Anyways 1 owner truck and previous owner said he never replaced injectors but ran Lucas with every tank. Either that Lucas worked well or he replaced injectors. This was at idle in park after driving around town. What are similar mileage trucks injector balance rates at?
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You say after driving around town. What were your temps at? The balance rate test is more accurate when the truck is at full operating temperature. However, my LLY has nearly identical balance rates to yours at full operating temperature so I don't think it's uncommon. I have no idea if the injectors have ever been replaced as I am the third owner but the truck was maintained very well between the two prior owners so it is a possibility.
 

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Yessir, truck reached operating temps. Previous owner was an old man who used it to pull his camper and get groceries in town, 100% stock truck.
Pretty much the same here. Post some pics of that bad boy. I've been considering getting an LBZ but it's been a challenge to find a clean one that hasn't been fooled with. A member here had one for sale that I would've bought in a heartbeat but it was 2WD.
 

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i thought someone on here said the edge 3 could not read balance rates. Thank you.
It definitely can. I have the CTS3 on my LLY as well.
 
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